Szilvia Orosz - Academia.edu (original) (raw)
Papers by Szilvia Orosz
The aim of the research was to investigate ensilage, nutrient content and fermentation characteri... more The aim of the research was to investigate ensilage, nutrient content and fermentation characteristics of elder (Sambucus nigra), black locust (Robinia pseudo-acacia), blackberry (Rubus spp.) and hawthorn (Crataegus spp.) shoots. Early summer shoots were collected, wilted (4-6 h), chopped, mixed with 20% dried corn (Zea mais) and then ensiled (n=5), with the same packing density of 600 kg/m3 (200kg/m3 DM). The fresh, the wilted pre-ensiled material were sampled immediately and the silages were sampled after 70 days of fermentation. Dry matter-, crude protein-, crude fibre- and NDF- content were determined in each sample, pH, lactic acid, acetic acid, propionic acid, butyric acid and ethanol were measured in silages (n=5). CP/CF and CP/NDF rate were calculated (MÁTRAI ET AL., 2002). The dry matter content of elder- and blackberry silages was optimal for fermentation (no significant difference P>0.05). Relatively high DM was found in the case of black locust- and hawthorn- silages ...
Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in highe... more Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in higher priority. Distant mass hay producers give favourable offers despite long distances. Quality is also gaining position and indicators like RFQ (Relative Forage Quality) is highlighting the marketing language. Hay market as we knew no longer exists in Hungary. Most farmers produce their own hay and do not spend extra cents to buy bales. Climate change however, force them to adapt and store more bales for the future. Horse owners and dairy farmers are the main driver to convince hay producers to provide high quality forage. We gathered Hungarian regional hay-price information and evaluated the trends in this sector. The demand-driven hay-price is in contradiction with premium quality timothy grass hay.
Applied Studies in Agribusiness and Commerce, 2022
Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in highe... more Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in higher priority. Distant mass hay producers give favourable offers despite long distances. Quality is also gaining position and indicators like RFQ (Relative Forage Quality) is highlighting the marketing language. Hay market as we knew no longer exists in Hungary. Most farmers produce their own hay and do not spend extra cents to buy bales. Climate change however, force them to adapt and store more bales for the future. Horse owners and dairy farmers are the main driver to convince hay producers to provide high quality forage. We gathered Hungarian regional hay-price information and evaluated the trends in this sector. The demand-driven hay-price is in contradiction with premium quality timothy grass hay. JEL code: Q11
Agriculture, 2021
The objective of this study was to evaluate the aroma profile, microbial and chemical quality of ... more The objective of this study was to evaluate the aroma profile, microbial and chemical quality of winter cereals (triticale, oats, barley and wheat) and Italian ryegrass (Lolium multiflorum Lam., IRG) plus winter cereal mixture silages detected with an electronic nose. Four commercial mixtures (mixture A (40% of two cultivars of winter triticale + 30% of two cultivars of winter oats + 20% of winter barley + 10% of winter wheat), mixture B (50% of two cultivars of winter triticale + 40% of winter barley + 10% of winter wheat), mixture C (55% of three types of Italian ryegrass + 45% of two cultivars of winter oat), mixture D (40% of three types of Italian ryegrass + 30% of two cultivars of winter oat + 15% of two cultivars of winter triticale + 10% of winter barley + 5% of winter wheat)) were harvested, wilted and ensiled in laboratory-scale silos (n = 80) without additives. Both the principal component analysis (PCA) score plot for aroma profile and linear discriminant analysis (LDA) ...
During silage making microbial fermentation produces an array of end products which can influence... more During silage making microbial fermentation produces an array of end products which can influence the odour of the final silage and can also change many nutritive aspects of a forage. The objective of this study was to evaluate the fermentation quality and aroma profile of winter cereals and Italian ryegrass (Lolium multiflorum Lam., IRG) plus winter cereal mixture silages detected with an electronic nose. Four mixtures (mixture A: triticale, oats, barley and wheat; mixture B: triticale, barley and wheat; mixture C: IRG and oats; mixture D: IRG, oats, triticale, barley and wheat) were harvested, wilted and ensiled in laboratory-scale silos (n = 80) without additives. Mixture C had higher (P < 0.05) mold and yeast (Log10 CFU (colony forming unit)/g) counts compared to mixture B. Mixture B and C had higher acetic acid (AA) content than mixture A and D. The lactic acid (LA) content was higher for mixture B than mixture C. At the end of 90 days fermentation winter cereal mixture sila...
Italian Journal of Animal Science, 2021
Abstract The study was conducted with the objective of evaluating the nutrient content, fermentat... more Abstract The study was conducted with the objective of evaluating the nutrient content, fermentation characteristics, microbial counts, and ruminal degradability of two mixtures of Italian ryegrass (Lolium multiflorum Lam.) and winter cereal silages. Two mixtures (mixture A: Italian ryegrass, triticale, oats, wheat and barley; and mixture B: Italian ryegrass and oats) were wilted and ensiled in laboratory‐scale silos without additives. At the end of 90 d fermentation mixture B silage had higher (p < .05) dry matter (DM), ether extract (EE), crude fibre (CF), neutral detergent fibre (NDF) and acid detergent fibre (ADF) contents than mixture A silage. The pH value of mixture B was higher (p < .05) than mixture A silage. Mixture A had higher lactate, acetate and ethanol contents than mixture B. However, mixture B had higher NH3-N (day 14) than mixture A silage. The mould and yeast count (Log10 CFU g−1) was higher (p < .05) for mixture A than mixture B at opening day 7. The in situ incubation revealed that potentially degradable fraction (b) of DM, CP and NDF was 39.41%, 43.59%, 80.23% (mixture A) and 39.16%, 32.39%, 94.35% (mixture B). The effective protein degradability (EPD) at 0.08 rumen outflow rates was 67.26% (mixture A) and 67.19% (mixture B). These results suggest that with the proper stage of harvesting, Italian ryegrass and winter cereal mixtures were fermented well. This kind of mixtures can be ensiled without additives in the future. The high potentially degradable NDF and effective protein degradability implies that this mixture could be included successfully in high-yielding dairy cattle diets. Highlights Italian ryegrass and winter cereal mixtures are well preserved without additives and it saves the cost of additives for dairy farmers. The ensiled mixtures have high potentially degradable NDF and effective protein degradability, which improve dry matter intake, milk production and increase the net return of farm. The mixture forage can be double-cropped with corn for silage making, which can have both environmental and economic benefits if the ensiled mixture yields are enough to cover expenses.
Czech Journal of Animal Science, 2021
This study was conducted using three multiparous non-lactating rumen-cannulated Holstein-Friesian... more This study was conducted using three multiparous non-lactating rumen-cannulated Holstein-Friesian dairy cows, with the objective of evaluating the in situ ruminal degradability and fermentation characteristics of novel mixtures of winter cereal and Italian ryegrass (Lolium multiflorum Lam.) plus winter cereal silages (mixture A: triticale, oats, barley and wheat; mixture B: triticale, barley and wheat; mixture C: Italian ryegrass and oats; mixture D: Italian ryegrass, oats, triticale, barley and wheat). The rumen fermentation study was conducted replacing the ensiled mixtures (experimental diets) with vetch-triticale haylage in a total mixed ration (control diet). It was found that the effective protein degradability at 0.08 rumen outflow rates was 80.6% (mixture A), 66.2% (mixture B), 79.7% (mixture C) and 79.3% (mixture D). The effective neutral detergent fibre (NDF) and acid detergent fibre (ADF) effective degradability at 0.08 rumen outflow rates was 18.0% and 17.7% (mixture A),...
Krmiva, 2020
The interest in new alternative forages in Europe has increased in recent years. The nutritional ... more The interest in new alternative forages in Europe has increased in recent years. The nutritional composition and fermentation characteristics during different stages of ensiling were studied with Italian ryegrass (Lolium multiflorum Lam.) and winter cereal mixtures. The trial was carried out on a large-scale farm Galgamenti Agricultural Limited Company, Tura, Hungary. Two different forage mixes were studied: Mixture A (three types of Italian ryegrass 40% + two types of triticale 20%+ two types of oats 20%+ wheat 15%+ barley 5%) and Mixture B (three types of Italian ryegrass 55% + two types of winter oats 45%). Experimental field was 30.600 m 2 by the treatments, respectively. The two different forage mixes were sown on 11th September 2017 (Mixture A: 75 kg seed/ha; Mixture B: 75 kg seed/ha) with depth of 2-5 cm. Plant protection treatment was not applied during the growing season. Cutting was carried out in heading stage of triticale by hand at 10 cm stubble height. The fresh Mixtur...
Agricultural and Food Science, 2013
An experiment was conducted to compare a bunker silo sealing system comprising an oxygen barrier ... more An experiment was conducted to compare a bunker silo sealing system comprising an oxygen barrier film (OB: 45μm thickness) with protective woven polypropylene with one comprising standard black polyethylene film (S; 125μm thickness) with protective tyres. Analysis of samples taken to 30 cm depth after 365 days of storage showed no differences in pH or lactic acid between the two sealing systems. There were no differences in aerobic bacterial count between silages. Whilst 2.56 log10 CFU moulds g-1 fresh weight were found in samples of silage sealed with S, no moulds were found in samples of silage sealed with OB. Aerobic stability, averaged 249 hours and 184 hours for OB and S, respectively. The OB system probably inhibited the development of the micro-organisms responsible for the initiation of aerobic deterioration to a greater extent than the standard silo sealing system.
Agricultural and Food Science, 2017
There is a debate whether supplementary feeding of game species is necessary, and what type of su... more There is a debate whether supplementary feeding of game species is necessary, and what type of supplementary food is appropriate for them. In our study a new type of supplemental food for wild game species was evaluated. Fresh tomato pomace mixed with ground maize grains (20% w/w on a fresh basis) was baled. Different additive treatments were made and crude protein and crude fibre content and fermentation profile were evaluated. Consumption of tomato pomace silage by wild ungulates was also measured. Ground maize grains increased the dry matter content and crude protein : crude fibre ratio of tomato pomace. Tomato pomace mixed silage had a limited fermentation capacity with appropriate pH and fermentation acid content. The special baling technology was suitable to form well-shaped bales. In the investigated hunting preserve tomato pomace was the dominant food component in the diet of ungulate species. According to our results, tomato pomace could provide suitable quality supplementa...
Asian-Australasian Journal of Animal Sciences, 2007
The effects of barley and oat feeding in table duck were investigated. During a 49-day growing pe... more The effects of barley and oat feeding in table duck were investigated. During a 49-day growing period a corn-based diet was supplemented by 45% barley and 45% oats (isonitrogenously and iso-energetically), respectively. Daily feed intake, FCR-, and weight gain were measured. Abdominal fat, liver, and gizzard weights were determined and dry matter, protein, fat content and fatty acid composition of femoro-tibial muscles and liver fat were measured on the 35 th , 42 nd and 49 th days of age. Feeding 45% barley caused a decrease of growth rate (p≤0.05) during the first 4 weeks, which was followed by a rapid, compensatory growth from the 6 th week of age (p≤0.05). Both barley and oat supplementation increased protein (p≤0.05), while decreasing fat (p≤0.05) and dry matter (p≤0.05) content of the liver. Feeding of 45% oats in the diet decreased the monounsaturated fatty acid (p≤0,05) and increased the n-6 (p≤0,05), n-3 (p≤0,05) and total polyunsaturated (p≤0,05) fatty acid content of the intramuscular fat owing to the high proportion of soluble non-starch polysaccharides (NSP) in the diet. This might be explained by the more pronounced decrease in digestibility of saturated than unsaturated fatty acids in birds fed a soluble NSP-enriched diet. This result might be caused by the "cage effect" of soluble NSP trapping the bile salts which are more important for the absorption of saturated than polyunsaturated fatty acids.
FOLIA ZOOLOGICA-PRAHA-, 2003
A bstract. This work shows records of seasonal home range shift of radio collared red deer hinds ... more A bstract. This work shows records of seasonal home range shift of radio collared red deer hinds (Cervus elaphus L., 1758) in southern Hungary from a forested block to the surrounding agricultural area every June between 19942000. Better quality of ...
Cereal Research Communications, 2006
During ensiling process, naturally occurring enzymes (proteases) will cause the valuable true pro... more During ensiling process, naturally occurring enzymes (proteases) will cause the valuable true protein to break down (McDonald et al, 1991). Prolonged fermentation in uninoculated silage allows proteolytic bacteria (eg. Clostridia) to degrade high quality plant protein and convert it into ammonia and nitrates. Therefore, it is essential that the decline in pH is as rapid as possible in the first two or three days of ensilage to stem proteolysis as true protein rather than the products of proteolysis is more readily absorbed by the intestine (by-pass protein) than the products of protein hydrolysis (Webb and Matthews. 1998). In uncontrolled silage fermentation 45% of the protein will be broken down (Carpintero et al, 1979). The use of lactic acid producing bacteria inoculants can significantly reduce the breakdown of protein, leaving higher levels of true protein in the treated forage. Reducing soluble protein levels in the rumen has been reported to improve microbial protein synthesis (Sharp et al, 1994). This overall retention of nitrogen by the animal will lead directly to improved performance, be it live-weight gain in beef animals (Mayne and Steen, 1993), significant extra milk production in dairy cows and helps sustainable development in agriculture owing to lower nitrogen content of the manure. The authors studied the effect of a biological silage additive on apparent nutrient digestibility and nitrogen-retention of alfalfa haylage in whether.
Cereal Research Communications, 2007
Materials and methods The experiment was done for five different growing seasons on a high potent... more Materials and methods The experiment was done for five different growing seasons on a high potential cash cropping soil, with clay a content of between 10 & 15%. The maize was planted on 0.25 ha plots and the companion crops on adjacent plots of 0.25 ha each (not ...
Cereal Research Communications, 2007
... Maize yield depends on several cirsumstances (Tóthné Zsubori et al, 2005), as weather conditi... more ... Maize yield depends on several cirsumstances (Tóthné Zsubori et al, 2005), as weather conditions, irrigation (Megyes et al, 2005) and fertilization (Berzsenyi et al, 2002; Huzsvay and Nagy, 2005; Berzseny and Lap, 2005, . ...
Acta Theriologica, 2003
Abstract A long-term radiotelemetry study on red deerCervus elaphus Linnaeus, 1758 was carried ou... more Abstract A long-term radiotelemetry study on red deerCervus elaphus Linnaeus, 1758 was carried out in a lowland forest-agriculture area in Hungary between 19932000. Previous observations suggested seasonal changes in population distribution between forested ...
The aim of the study was to determine the nutrient content, fermentation quality and microbial st... more The aim of the study was to determine the nutrient content, fermentation quality and microbial status of wet tomato pulp silage after applying different treatments in two consecutive years. In the first year, dried whole seed wheat (20% based FM) was applied in order to reduce the hazard of effluent production and undesirable fermentation processes and to increase energy content of tomato pulp. Ensiling was carried out in metal barrels/treatment with a capacity of 150-180 kg/barrel. In the second year, dried ground corn (20%) was applied for the same reasons as before and to increase nutritive value of the by-product. In the first year, the applied dried whole seed wheat (used at 20%) increased the net energy content for maintenance of tomato pulp, which has an important role in game feeding during the winter (roe deer and red deer, wild boar). The calculated lactation net energy content was similar to a maize silage harvested with approx. 25-30% starch content. Mixing of 20% dried ...
ABSTRACT Kísérleteinkben olyan Magyarországon használatos állatfajták, illetve genotípusok különb... more ABSTRACT Kísérleteinkben olyan Magyarországon használatos állatfajták, illetve genotípusok különböző szöveti lipidjeinek zsírsavösszetételét vizsgáltuk baromfi, szarvasmarha és juh fajok esetében, amelyek állati eredetű élelmiszer-alapanyagok termelésére alkalmazhatók. Összefüggéseket tapasztaltunk a fajta, illetve genotípus és a takarmányozás jellege, valamint az állati termékek zsírsavösszetétele között. Ezen összefüggésekre alapozva olyan takarmányozási technológiákat fejlesztettünk ki, amelyek lehetőséget nyújtanak a fogyasztó szempontjából egészséges zsírsavprofil kialakítására tojás, tej és hús esetében. Ezekkel a módszerekkel elsősorban az n-3 és CLA zsírsavak mennyisége fokozható az élelmiszerekben. Eredményeinket az állattartó gazdaságok és a takarmányipar rendelkezésére bocsátottuk, akik kísérleteink adatait felhasználhatják a takarmányok előállításához, számításba véve azok hatásait az állati szövetek lipidjeinek összetételére. Kutatásaink ennek megfelelően hozzájárulnak az egészséges élelmiszerek előállításához. | In our studies the fatty acid profile of various lipids in the tissues of some animal breeds and genotypes of poultry, cattle and sheep used in Hungary for food production were measured. Relationships between fatty acid composition of animal products and genotypes as well as nutritional conditions were showed. On the basis of these relationships various feeding technologies were developed, which provides possibilities for the manipulation of the fatty acid composition of the main human food sources of animal origin including egg, meat and milk. By the means of these techniques mostly n-3 and CLA fatty acid levels of foods can be increased. The results of our experiments are available for feed industry. They can use these data for the preparation of feed mixtures taking the effects of feeds on the lipid compositions of animal tissues into account. In this way our studies means a contribution to the supply of healthy food sources for humans.
The aim of the research was to investigate ensilage, nutrient content and fermentation characteri... more The aim of the research was to investigate ensilage, nutrient content and fermentation characteristics of elder (Sambucus nigra), black locust (Robinia pseudo-acacia), blackberry (Rubus spp.) and hawthorn (Crataegus spp.) shoots. Early summer shoots were collected, wilted (4-6 h), chopped, mixed with 20% dried corn (Zea mais) and then ensiled (n=5), with the same packing density of 600 kg/m3 (200kg/m3 DM). The fresh, the wilted pre-ensiled material were sampled immediately and the silages were sampled after 70 days of fermentation. Dry matter-, crude protein-, crude fibre- and NDF- content were determined in each sample, pH, lactic acid, acetic acid, propionic acid, butyric acid and ethanol were measured in silages (n=5). CP/CF and CP/NDF rate were calculated (MÁTRAI ET AL., 2002). The dry matter content of elder- and blackberry silages was optimal for fermentation (no significant difference P>0.05). Relatively high DM was found in the case of black locust- and hawthorn- silages ...
Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in highe... more Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in higher priority. Distant mass hay producers give favourable offers despite long distances. Quality is also gaining position and indicators like RFQ (Relative Forage Quality) is highlighting the marketing language. Hay market as we knew no longer exists in Hungary. Most farmers produce their own hay and do not spend extra cents to buy bales. Climate change however, force them to adapt and store more bales for the future. Horse owners and dairy farmers are the main driver to convince hay producers to provide high quality forage. We gathered Hungarian regional hay-price information and evaluated the trends in this sector. The demand-driven hay-price is in contradiction with premium quality timothy grass hay.
Applied Studies in Agribusiness and Commerce, 2022
Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in highe... more Climate adaptation is a major challenge. Chasing the sufficient amount of hay is getting in higher priority. Distant mass hay producers give favourable offers despite long distances. Quality is also gaining position and indicators like RFQ (Relative Forage Quality) is highlighting the marketing language. Hay market as we knew no longer exists in Hungary. Most farmers produce their own hay and do not spend extra cents to buy bales. Climate change however, force them to adapt and store more bales for the future. Horse owners and dairy farmers are the main driver to convince hay producers to provide high quality forage. We gathered Hungarian regional hay-price information and evaluated the trends in this sector. The demand-driven hay-price is in contradiction with premium quality timothy grass hay. JEL code: Q11
Agriculture, 2021
The objective of this study was to evaluate the aroma profile, microbial and chemical quality of ... more The objective of this study was to evaluate the aroma profile, microbial and chemical quality of winter cereals (triticale, oats, barley and wheat) and Italian ryegrass (Lolium multiflorum Lam., IRG) plus winter cereal mixture silages detected with an electronic nose. Four commercial mixtures (mixture A (40% of two cultivars of winter triticale + 30% of two cultivars of winter oats + 20% of winter barley + 10% of winter wheat), mixture B (50% of two cultivars of winter triticale + 40% of winter barley + 10% of winter wheat), mixture C (55% of three types of Italian ryegrass + 45% of two cultivars of winter oat), mixture D (40% of three types of Italian ryegrass + 30% of two cultivars of winter oat + 15% of two cultivars of winter triticale + 10% of winter barley + 5% of winter wheat)) were harvested, wilted and ensiled in laboratory-scale silos (n = 80) without additives. Both the principal component analysis (PCA) score plot for aroma profile and linear discriminant analysis (LDA) ...
During silage making microbial fermentation produces an array of end products which can influence... more During silage making microbial fermentation produces an array of end products which can influence the odour of the final silage and can also change many nutritive aspects of a forage. The objective of this study was to evaluate the fermentation quality and aroma profile of winter cereals and Italian ryegrass (Lolium multiflorum Lam., IRG) plus winter cereal mixture silages detected with an electronic nose. Four mixtures (mixture A: triticale, oats, barley and wheat; mixture B: triticale, barley and wheat; mixture C: IRG and oats; mixture D: IRG, oats, triticale, barley and wheat) were harvested, wilted and ensiled in laboratory-scale silos (n = 80) without additives. Mixture C had higher (P < 0.05) mold and yeast (Log10 CFU (colony forming unit)/g) counts compared to mixture B. Mixture B and C had higher acetic acid (AA) content than mixture A and D. The lactic acid (LA) content was higher for mixture B than mixture C. At the end of 90 days fermentation winter cereal mixture sila...
Italian Journal of Animal Science, 2021
Abstract The study was conducted with the objective of evaluating the nutrient content, fermentat... more Abstract The study was conducted with the objective of evaluating the nutrient content, fermentation characteristics, microbial counts, and ruminal degradability of two mixtures of Italian ryegrass (Lolium multiflorum Lam.) and winter cereal silages. Two mixtures (mixture A: Italian ryegrass, triticale, oats, wheat and barley; and mixture B: Italian ryegrass and oats) were wilted and ensiled in laboratory‐scale silos without additives. At the end of 90 d fermentation mixture B silage had higher (p < .05) dry matter (DM), ether extract (EE), crude fibre (CF), neutral detergent fibre (NDF) and acid detergent fibre (ADF) contents than mixture A silage. The pH value of mixture B was higher (p < .05) than mixture A silage. Mixture A had higher lactate, acetate and ethanol contents than mixture B. However, mixture B had higher NH3-N (day 14) than mixture A silage. The mould and yeast count (Log10 CFU g−1) was higher (p < .05) for mixture A than mixture B at opening day 7. The in situ incubation revealed that potentially degradable fraction (b) of DM, CP and NDF was 39.41%, 43.59%, 80.23% (mixture A) and 39.16%, 32.39%, 94.35% (mixture B). The effective protein degradability (EPD) at 0.08 rumen outflow rates was 67.26% (mixture A) and 67.19% (mixture B). These results suggest that with the proper stage of harvesting, Italian ryegrass and winter cereal mixtures were fermented well. This kind of mixtures can be ensiled without additives in the future. The high potentially degradable NDF and effective protein degradability implies that this mixture could be included successfully in high-yielding dairy cattle diets. Highlights Italian ryegrass and winter cereal mixtures are well preserved without additives and it saves the cost of additives for dairy farmers. The ensiled mixtures have high potentially degradable NDF and effective protein degradability, which improve dry matter intake, milk production and increase the net return of farm. The mixture forage can be double-cropped with corn for silage making, which can have both environmental and economic benefits if the ensiled mixture yields are enough to cover expenses.
Czech Journal of Animal Science, 2021
This study was conducted using three multiparous non-lactating rumen-cannulated Holstein-Friesian... more This study was conducted using three multiparous non-lactating rumen-cannulated Holstein-Friesian dairy cows, with the objective of evaluating the in situ ruminal degradability and fermentation characteristics of novel mixtures of winter cereal and Italian ryegrass (Lolium multiflorum Lam.) plus winter cereal silages (mixture A: triticale, oats, barley and wheat; mixture B: triticale, barley and wheat; mixture C: Italian ryegrass and oats; mixture D: Italian ryegrass, oats, triticale, barley and wheat). The rumen fermentation study was conducted replacing the ensiled mixtures (experimental diets) with vetch-triticale haylage in a total mixed ration (control diet). It was found that the effective protein degradability at 0.08 rumen outflow rates was 80.6% (mixture A), 66.2% (mixture B), 79.7% (mixture C) and 79.3% (mixture D). The effective neutral detergent fibre (NDF) and acid detergent fibre (ADF) effective degradability at 0.08 rumen outflow rates was 18.0% and 17.7% (mixture A),...
Krmiva, 2020
The interest in new alternative forages in Europe has increased in recent years. The nutritional ... more The interest in new alternative forages in Europe has increased in recent years. The nutritional composition and fermentation characteristics during different stages of ensiling were studied with Italian ryegrass (Lolium multiflorum Lam.) and winter cereal mixtures. The trial was carried out on a large-scale farm Galgamenti Agricultural Limited Company, Tura, Hungary. Two different forage mixes were studied: Mixture A (three types of Italian ryegrass 40% + two types of triticale 20%+ two types of oats 20%+ wheat 15%+ barley 5%) and Mixture B (three types of Italian ryegrass 55% + two types of winter oats 45%). Experimental field was 30.600 m 2 by the treatments, respectively. The two different forage mixes were sown on 11th September 2017 (Mixture A: 75 kg seed/ha; Mixture B: 75 kg seed/ha) with depth of 2-5 cm. Plant protection treatment was not applied during the growing season. Cutting was carried out in heading stage of triticale by hand at 10 cm stubble height. The fresh Mixtur...
Agricultural and Food Science, 2013
An experiment was conducted to compare a bunker silo sealing system comprising an oxygen barrier ... more An experiment was conducted to compare a bunker silo sealing system comprising an oxygen barrier film (OB: 45μm thickness) with protective woven polypropylene with one comprising standard black polyethylene film (S; 125μm thickness) with protective tyres. Analysis of samples taken to 30 cm depth after 365 days of storage showed no differences in pH or lactic acid between the two sealing systems. There were no differences in aerobic bacterial count between silages. Whilst 2.56 log10 CFU moulds g-1 fresh weight were found in samples of silage sealed with S, no moulds were found in samples of silage sealed with OB. Aerobic stability, averaged 249 hours and 184 hours for OB and S, respectively. The OB system probably inhibited the development of the micro-organisms responsible for the initiation of aerobic deterioration to a greater extent than the standard silo sealing system.
Agricultural and Food Science, 2017
There is a debate whether supplementary feeding of game species is necessary, and what type of su... more There is a debate whether supplementary feeding of game species is necessary, and what type of supplementary food is appropriate for them. In our study a new type of supplemental food for wild game species was evaluated. Fresh tomato pomace mixed with ground maize grains (20% w/w on a fresh basis) was baled. Different additive treatments were made and crude protein and crude fibre content and fermentation profile were evaluated. Consumption of tomato pomace silage by wild ungulates was also measured. Ground maize grains increased the dry matter content and crude protein : crude fibre ratio of tomato pomace. Tomato pomace mixed silage had a limited fermentation capacity with appropriate pH and fermentation acid content. The special baling technology was suitable to form well-shaped bales. In the investigated hunting preserve tomato pomace was the dominant food component in the diet of ungulate species. According to our results, tomato pomace could provide suitable quality supplementa...
Asian-Australasian Journal of Animal Sciences, 2007
The effects of barley and oat feeding in table duck were investigated. During a 49-day growing pe... more The effects of barley and oat feeding in table duck were investigated. During a 49-day growing period a corn-based diet was supplemented by 45% barley and 45% oats (isonitrogenously and iso-energetically), respectively. Daily feed intake, FCR-, and weight gain were measured. Abdominal fat, liver, and gizzard weights were determined and dry matter, protein, fat content and fatty acid composition of femoro-tibial muscles and liver fat were measured on the 35 th , 42 nd and 49 th days of age. Feeding 45% barley caused a decrease of growth rate (p≤0.05) during the first 4 weeks, which was followed by a rapid, compensatory growth from the 6 th week of age (p≤0.05). Both barley and oat supplementation increased protein (p≤0.05), while decreasing fat (p≤0.05) and dry matter (p≤0.05) content of the liver. Feeding of 45% oats in the diet decreased the monounsaturated fatty acid (p≤0,05) and increased the n-6 (p≤0,05), n-3 (p≤0,05) and total polyunsaturated (p≤0,05) fatty acid content of the intramuscular fat owing to the high proportion of soluble non-starch polysaccharides (NSP) in the diet. This might be explained by the more pronounced decrease in digestibility of saturated than unsaturated fatty acids in birds fed a soluble NSP-enriched diet. This result might be caused by the "cage effect" of soluble NSP trapping the bile salts which are more important for the absorption of saturated than polyunsaturated fatty acids.
FOLIA ZOOLOGICA-PRAHA-, 2003
A bstract. This work shows records of seasonal home range shift of radio collared red deer hinds ... more A bstract. This work shows records of seasonal home range shift of radio collared red deer hinds (Cervus elaphus L., 1758) in southern Hungary from a forested block to the surrounding agricultural area every June between 19942000. Better quality of ...
Cereal Research Communications, 2006
During ensiling process, naturally occurring enzymes (proteases) will cause the valuable true pro... more During ensiling process, naturally occurring enzymes (proteases) will cause the valuable true protein to break down (McDonald et al, 1991). Prolonged fermentation in uninoculated silage allows proteolytic bacteria (eg. Clostridia) to degrade high quality plant protein and convert it into ammonia and nitrates. Therefore, it is essential that the decline in pH is as rapid as possible in the first two or three days of ensilage to stem proteolysis as true protein rather than the products of proteolysis is more readily absorbed by the intestine (by-pass protein) than the products of protein hydrolysis (Webb and Matthews. 1998). In uncontrolled silage fermentation 45% of the protein will be broken down (Carpintero et al, 1979). The use of lactic acid producing bacteria inoculants can significantly reduce the breakdown of protein, leaving higher levels of true protein in the treated forage. Reducing soluble protein levels in the rumen has been reported to improve microbial protein synthesis (Sharp et al, 1994). This overall retention of nitrogen by the animal will lead directly to improved performance, be it live-weight gain in beef animals (Mayne and Steen, 1993), significant extra milk production in dairy cows and helps sustainable development in agriculture owing to lower nitrogen content of the manure. The authors studied the effect of a biological silage additive on apparent nutrient digestibility and nitrogen-retention of alfalfa haylage in whether.
Cereal Research Communications, 2007
Materials and methods The experiment was done for five different growing seasons on a high potent... more Materials and methods The experiment was done for five different growing seasons on a high potential cash cropping soil, with clay a content of between 10 & 15%. The maize was planted on 0.25 ha plots and the companion crops on adjacent plots of 0.25 ha each (not ...
Cereal Research Communications, 2007
... Maize yield depends on several cirsumstances (Tóthné Zsubori et al, 2005), as weather conditi... more ... Maize yield depends on several cirsumstances (Tóthné Zsubori et al, 2005), as weather conditions, irrigation (Megyes et al, 2005) and fertilization (Berzsenyi et al, 2002; Huzsvay and Nagy, 2005; Berzseny and Lap, 2005, . ...
Acta Theriologica, 2003
Abstract A long-term radiotelemetry study on red deerCervus elaphus Linnaeus, 1758 was carried ou... more Abstract A long-term radiotelemetry study on red deerCervus elaphus Linnaeus, 1758 was carried out in a lowland forest-agriculture area in Hungary between 19932000. Previous observations suggested seasonal changes in population distribution between forested ...
The aim of the study was to determine the nutrient content, fermentation quality and microbial st... more The aim of the study was to determine the nutrient content, fermentation quality and microbial status of wet tomato pulp silage after applying different treatments in two consecutive years. In the first year, dried whole seed wheat (20% based FM) was applied in order to reduce the hazard of effluent production and undesirable fermentation processes and to increase energy content of tomato pulp. Ensiling was carried out in metal barrels/treatment with a capacity of 150-180 kg/barrel. In the second year, dried ground corn (20%) was applied for the same reasons as before and to increase nutritive value of the by-product. In the first year, the applied dried whole seed wheat (used at 20%) increased the net energy content for maintenance of tomato pulp, which has an important role in game feeding during the winter (roe deer and red deer, wild boar). The calculated lactation net energy content was similar to a maize silage harvested with approx. 25-30% starch content. Mixing of 20% dried ...
ABSTRACT Kísérleteinkben olyan Magyarországon használatos állatfajták, illetve genotípusok különb... more ABSTRACT Kísérleteinkben olyan Magyarországon használatos állatfajták, illetve genotípusok különböző szöveti lipidjeinek zsírsavösszetételét vizsgáltuk baromfi, szarvasmarha és juh fajok esetében, amelyek állati eredetű élelmiszer-alapanyagok termelésére alkalmazhatók. Összefüggéseket tapasztaltunk a fajta, illetve genotípus és a takarmányozás jellege, valamint az állati termékek zsírsavösszetétele között. Ezen összefüggésekre alapozva olyan takarmányozási technológiákat fejlesztettünk ki, amelyek lehetőséget nyújtanak a fogyasztó szempontjából egészséges zsírsavprofil kialakítására tojás, tej és hús esetében. Ezekkel a módszerekkel elsősorban az n-3 és CLA zsírsavak mennyisége fokozható az élelmiszerekben. Eredményeinket az állattartó gazdaságok és a takarmányipar rendelkezésére bocsátottuk, akik kísérleteink adatait felhasználhatják a takarmányok előállításához, számításba véve azok hatásait az állati szövetek lipidjeinek összetételére. Kutatásaink ennek megfelelően hozzájárulnak az egészséges élelmiszerek előállításához. | In our studies the fatty acid profile of various lipids in the tissues of some animal breeds and genotypes of poultry, cattle and sheep used in Hungary for food production were measured. Relationships between fatty acid composition of animal products and genotypes as well as nutritional conditions were showed. On the basis of these relationships various feeding technologies were developed, which provides possibilities for the manipulation of the fatty acid composition of the main human food sources of animal origin including egg, meat and milk. By the means of these techniques mostly n-3 and CLA fatty acid levels of foods can be increased. The results of our experiments are available for feed industry. They can use these data for the preparation of feed mixtures taking the effects of feeds on the lipid compositions of animal tissues into account. In this way our studies means a contribution to the supply of healthy food sources for humans.