Vito Laudadio - Profile on Academia.edu (original) (raw)
Papers by Vito Laudadio
The Journal of applied poultry research, Mar 1, 2011
A trial was conducted to assess the effect of diets containing fava beans (Vicia faba var. minor)... more A trial was conducted to assess the effect of diets containing fava beans (Vicia faba var. minor) on productive traits, carcass yields, and meat fatty acid profiles of broiler chickens. Hubbard strain broiler chicks, divided into 2 groups, received a durum wheat middlings-based diet containing soybean meal (190 g/kg) or dehulled-micronized fava beans (310 g/kg) as the main protein source from 14 d to slaughter age (49 d). Replacement of soybean meal with fava beans as the dietary protein source had no effect on broiler growth performance, carcass dressing percentage, and abdominal fat. In contrast, meat quality characteristics were affected (P < 0.05) by dietary inclusion of fava beans. Accordingly, breast and drumstick muscles of birds fed the fava bean diets had lower L* (lightness) and higher a* (redness) and b* (yellowness) values when compared with birds fed the soybean meal diets. Total collagen and water-holding capacity values were higher in the fava bean treatment. The polyunsaturated fatty acid concentration in breast and drumstick muscles was significantly increased with inclusion of the alternative protein source, whereas the saturated fatty acid concentration was similar among treatments. The n-6:n-3 polyunsaturated fatty acid ratio of the broiler muscles decreased significantly in the fava bean group. It was concluded that replacing soybean meal with dehulled-micronized fava beans at 31% of the diet had no adverse effect on broiler growth performance and meat quality.
Antioxidants, May 20, 2023
Vitamin A is a fat-soluble vitamin that cannot be synthesized in the body and must be obtained th... more Vitamin A is a fat-soluble vitamin that cannot be synthesized in the body and must be obtained through diet. Despite being one of the earliest vitamins identified, a complete range of biological actions is still unknown. Carotenoids are a category of roughly 600 chemicals that are structurally related to vitamin A. Vitamin A can be present in the body in the form of retinol, retinal, and retinoic acid. Vitamins are required in minute amounts, yet they are critical for health, maintenance, and performing key biological functions in the body, such as growth, embryo development, epithelial cell differentiation, and immune function. Vitamin A deficiency induces a variety of problems, including lack of appetite, decreased development and immunity, and susceptibility to many diseases. Dietary preformed vitamin A, provitamin A, and several classes of carotenoids can be used to meet vitamin A requirements. The aim of this review is to compile the available scientific literature regarding the sources and important functions, such as growth, immunity, antioxidant, and other biological activities of vitamin A in poultry.
The performances of dairy ewes reared on permanent stabling system as affected by the fence width
Reproduction in Domestic Animals, Jul 2, 2015
Optimal reproduction is very closely tied with optimal nutrition, and early-lactation diets in co... more Optimal reproduction is very closely tied with optimal nutrition, and early-lactation diets in cows are critical to successful reproduction and monitoring is important. To evaluate the effects of different dietary protein sources on metabolic parameters and reproductive activity, a total of 36 Italian Friesian early-lactating dairy cows were assigned for 16 weeks to three dietary treatments as follow: the control diet contained soya bean meal (SBM) as the main protein source, whereas the experimental diets contained faba bean (FB) or pea seeds (PS) as alternative protein sources. Diets were formulated to be isocaloric and isonitrogenous. Cow blood samples were collected, and plasma were analysed for metabolites, biological enzymes, b-hydroxybutyrate (BHBA) and non-esterified fatty acids (NEFA). Feeding alternative protein sources had no effects on most metabolic blood profile, except for blood cholesterol, triglycerides and urea. Results from reproductive parameters indicated that cows fed FB diet had a lower insemination index, but a shorter calving to conception period and an improved conception rate and artificial insemination outcome, when compared to cows fed SBM or PS diets. It can be concluded that replacing conventional dietary SBM with alternative protein sources, especially FB, resulted in improved reproductive performances and metabolic parameters in early-lactating dairy cows.
Dietary supplementation with selenium and vitamin E improves milk yield, composition and rheological properties of dairy Jonica goats
Journal of Dairy Research, Jan 25, 2011
The objective of this study was to evaluate the effect of dietary supplementation with selenium (... more The objective of this study was to evaluate the effect of dietary supplementation with selenium (Se) and vitamin E (VitE) on milk yield, composition and renneting parameters in dairy Jonica breed goats. Forty multiparous lactating goats fed the same basal diet were randomly allocated to 1 of 2 dietary treatments: for 135 days, the experimental period. Basal diet was composed by ad libitum mixed vetch-oat hay and a definite amount of a pelleted concentrate. Dietary treatments included: (1) the control diet containing background Se and VitE only, and (2) the experimental diet containing sodium selenite as the Se supplement in concentrate (0·20 mg/head per day of Na-selenite and 20 mg/day per head of VitE). During the trial, no significant differences (P>0·05) were registered in dry matter intake and body weight gain among groups. Goats fed Se-VitE diet showed the highest milk production (P<0·05), and fat (P<0·01) and protein (P<0·05) yields and percentages. Somatic cell count were significantly lower in Se-VitE diet compared with control group (P<0·05). Significant differences (P<0·05) were observed in milk renneting properties. Based on our results, it was concluded that dietary supplementation with SE and VitE led to an increase of milk production and quality in Jonica goat, with positively improvement in milk coagulation aptitude.
Indian Journal of Animal Sciences, Jul 28, 2021
This study aimed to test the hypothesis that lower levels of pennyroyal (Mentha pulegium L.) extr... more This study aimed to test the hypothesis that lower levels of pennyroyal (Mentha pulegium L.) extract can improve growth traits, blood constitutes, immunity and microflora in broilers up to 42-days production cycle. A total of 300 broiler chicks (Ross 308) were randomly distributed into five dietary treatments, with three replicates per treatment (20 birds per replicate) as follows: control group received a basal diet with no pennyroyal supplementation, whereas the treatment-groups fed the basal diet including different pennyroyal levels (100, 200, 300 and 400 ppm, respectively) in drinking water. Feeding of pennyroyal during the whole rearing period partly affected body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) of broilers. Pennyroyal extract at different levels significantly lowered blood total cholesterol and triglycerides of birds. Results also showed significantly higher high-density lipoprotein (HDL)-cholesterol and lower low-density lipoprotein (LDL)-cholesterol levels in pennyroyal-supplemented group. Further, a significant increase of antibody production to total sheep red blood cells (SRBC) and IgM at 42 days of age was observed. Broilers receiving 100 ppm pennyroyal extract had the lowest count of E. coli bacteria in ileum. Overall, based on our findings, supplementing pennyroyal affected positively broiler growth traits, blood parameters and reduced harmful intestinal bacteria.
Effects of feed supplementation with lavender (Lavandula angustifolia) essence on growth performance, carcass traits, blood constituents and caecal microbiota of broiler chickens
Animal Feed Science and Technology, Nov 1, 2011
Little scientific information is available that evaluates wheat middlings (WM) as corn grain subs... more Little scientific information is available that evaluates wheat middlings (WM) as corn grain substitute in lamb diet. The objective of this work was to evaluate the effect of feeding WM in total mixed rations (TMR) on lamb performance and carcass characteristics. Forty Comisana breed male lambs (13 ± 0.5 kg BW) were allocated randomly to two isocaloric and isonitrogenous diets. Two pelleted TMR were formulated: control diet contained 400 g/kg of dry matter (DM) of corn as main starch source, whereas experimental diet contained 600 g/kg DM of WM. Lambs were slaughtered after fifty days of feeding trial and carcass data were collected. In order to evaluate in vivo digestibility of TMR, four adult Comisana rams were placed in metabolic cages and their individual faeces and urine were collected, and indicated differences for NDF and ADF fractions. Results from growth trial of lambs showed that final live weight and gain as well as feed conversion ratio were improved by WM in diet (P=0.035). In slaughter trial, none of the parameters studied were influenced by dietary treatment, except for slaughter weight and cold-carcass dressing that were improved in lambs fed WM (P=0.047 and P=0.042, respectively). Additionally, WM diet had no effect on lamb carcass traits. As result, WM maintained lamb performance and had no negative effect on lamb performance and carcass traits. Maximizing the use of WM may become economically feasible for lamb feeders when prices turn favorable compared to conventional dietary ingredients such as corn.
Impiego DI Saponi DI Calcio in Pecore in Lattazione a Stabulazione Permanente: 2° Aspetti Qualitativi
Moving towards a horizontal and vertical integrated curriculum, Work-Station Learning Activities ... more Moving towards a horizontal and vertical integrated curriculum, Work-Station Learning Activities (WSLA) were designed and implemented as a new learning instrument. Here, we aim to evaluate whether and how this specific learning model affects academic performance. To better understand how it is received by medical students, a mixed methods research study was conducted. In the quantitative strand, two cohorts of first year students were compared: academic year 2015-2016 n = 320 with no exposure to WSLA, and academic year 2016-2017 n = 336 with WSLA. Learning objectives at different levels of Bloom's taxonomy were identified and performance evaluated from multiple-choice questions. In the qualitative strand, a total of six students were purposely selected considering academic performance and motivation, and submitted to semistructured interviews. Performance at both cohorts for learning objectives at lower levels of Bloom's taxonomy was similar (38.8 vs. 39.0%; p = 0.955). In contrast, students in the WSLA group outperformed significantly those not exposed for learning objectives involving upper levels (68.5 vs. 54.2%; p <0.001). A multivariate analysis confirmed that the probability of mastering the second (more complex) objective is 1.64 times higher in students with WSLA methodology (OR 95% CI, 1.15-2.34; p = 0.007) than with traditional methodology. In the interviews, students perceived the clinical scenario of WSLA as a motivator and recognized this methodology as a more constructive framework for understanding of complicated concepts. In summary, our mixed methods research supports WSLA as a strategy that promotes deep learning and has a positive impact on academic performance for learning objectives involving higher order thinking skills in medical curricula.
The Effect on Milk Yield and Composition in Ewes Fed on Different Amounts of Calcium Soaps Supported by Rumen Protected Methionine
The utilization of artichoke bracts (Cynara scolymus L.) in diets for meat kids
Effects of dietary safflower oil and sex on growth performance and carcass composition of wild ducks (Anas platyrhyncos)
Residues of polichlorinated biphenyls and organochlorine pesticides in different avian species from Italy
The utilization of wheat germ in fattening turkeys reared in two different environments. 1: Performances and carcass quality [Apulia]
Faecal liquor as alternative microbial inoculum source for in vitro (DaisyII) technique to estimate the digestibility of feeds for camels
Methanolic extract of neem (Azadirachta indica) leaves mitigates experimentally induced coccidiosis challenge in Japanese quails
Journal of Applied Animal Research, Aug 8, 2022
Efficacy and role of inulin in mitigation of enteric sulfur-containing odor in pigs
Journal of the Science of Food and Agriculture, Oct 18, 2016
The efficacy and role of inulin on mitigation of enteric sulfur-containing odor gases: hydrogen s... more The efficacy and role of inulin on mitigation of enteric sulfur-containing odor gases: hydrogen sulfide (H2 S) and methyl mercaptan (CH3 SH) in pigs were examined in this study. Twelve Duroc × Landrace × Yorkshire male finisher pigs (60.7 ± 1.9 kg), housed individually in open-circuit respiration chambers, were randomly assigned to 2 dietary groups, a basal diet (control) and basal diet supplemented with 1% inulin. At the end of 45-day experiment, pigs were slaughtered and volatile fatty acids (VFA) concentration, sulfate radical (SO4 (2) (-) ) concentrations, population of sulfate-reducing bacteria (SRB) and expression of methione gamma-lyase (MGL) gene were determined in contents from the caecum, two segments of the colon, and rectum. Metabonomics analysis was used to compare differences of biochemical composition contents, and Illumina MiSeq procedure was used to investigate the difference of bacterial component, in different part of the large intestine between inulin supplemented and inulin free (control) groups. Results show that inulin decreased (P&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05) the average daily enteric H2 S and CH3 SH production by 12.4 and 12.1%, respectively. The concentrations of acetate, propionate and butyrate in the large intestinal content with inulin treatment were significantly increased (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05) whereas valerate concentrations and MGL mRNA expression decreased (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05). Our results show that inulin mitigates CH3 SH generation via 3 methionine degradation metabolic pathways and H2 S generation from 2 cysteine degradation metabolic pathways, thus resulted in incline in synthesis of the above two sulfur-containing amino acids in large intestine in pig. The growth of Lactobacillus, Butyrivibrio, Pseudobutyrivibrio, Bifidobacterium and Clostridium butyricum was stimulated while Desulfovibrio, the dominant sulfur reduction bacteria (SRB) was inhibited, and an accumulation of SO4 (2) (-) in the large intestinal content of inulin supplemented pigs, suggesting that inulin mitigates H2 S generation from SO4 (2) (-) reduction pathway by reduce the growth of SRB.
Practical applications of agricultural wastes in poultry feeding in Mediterranean and Middle East regions. Part 2: tomato, olive, date, sunflower wastes
Worlds Poultry Science Journal, Sep 1, 2018
Agroindustry wastes from tomato, olive, date and sunflower processing have valuable nutritional c... more Agroindustry wastes from tomato, olive, date and sunflower processing have valuable nutritional characteristics, and could be included in poultry rations to facilitate reducing feeding costs. By-products of tomato and olive processing can be supplemented in the diet of broilers and laying hens by up to 10% without detrimental effects on production, whilst improving the biochemical blood profile and enhancing the oxidative status of birds. Published research has shown that feeding sunflower and date wastes could be successfully added to diet at high inclusion levels (up to 30 and 40%, respectively) resulting in heavier broiler carcasses and increased number of eggs produced by laying hens. In this paper, applications of agricultural wastes and by-products in poultry feeding is reviewed, and the documented and novel findings related to their influence on poultry production, health and gut microbiota are discussed.
Feeding of black cumin (Nigella sativa L.) and its effects on poultry production and health
Worlds Poultry Science Journal, Apr 2, 2020
SUMMARY Black cumin (Nigella sativa L.) is a perennial and autogamous plant belonging to Umbellif... more SUMMARY Black cumin (Nigella sativa L.) is a perennial and autogamous plant belonging to Umbelliferae family, which grows in Central Asia and Europe. It is a medicinal plant, with seeds and oil used in treating several diseases and is employed in the human food industry. Reduction of blood sugar and anticancer effects are the main therapeutic properties of black cumin oil. Hypoglycaemia and hypocholesterolemia are two modern lifestyle diseases, and feeding of black cumin may be useful to solve these conditions. The available literature reports that the addition of black cumin seeds improved performance (at supplementation levels of 3-5% in diet) and influenced positively (at supplementation levels of 2-3% in diet) the intestinal microflora of broilers. Black cumin oil, administered up to 3% in the diet, reduced the number of thrombocytes and neutrophils and increased lymphocytes in broilers. Black cumin seeds may increase the content of unsaturated fatty acids and enhance the antioxidant properties of poultry meat (when fed up to 2% in diet). In laying hens, feeding black cumin oil at 1-2% in feed increased egg mass and improved egg quality, especially in the early production phase, and reduced gut E. coli count. Dietary supplementation with black cumin (2% as seeds or 0.5% as oil) in quail diets improved performance (growth and egg production) and reduced significantly the harmful bacteria in the gut. In this review, the recent findings on the effects of dietary black cumin on poultry performance, immune response, plasma constitutes, gut microbiota and enzyme activity are reviewed and discussed.
The Journal of applied poultry research, Mar 1, 2011
A trial was conducted to assess the effect of diets containing fava beans (Vicia faba var. minor)... more A trial was conducted to assess the effect of diets containing fava beans (Vicia faba var. minor) on productive traits, carcass yields, and meat fatty acid profiles of broiler chickens. Hubbard strain broiler chicks, divided into 2 groups, received a durum wheat middlings-based diet containing soybean meal (190 g/kg) or dehulled-micronized fava beans (310 g/kg) as the main protein source from 14 d to slaughter age (49 d). Replacement of soybean meal with fava beans as the dietary protein source had no effect on broiler growth performance, carcass dressing percentage, and abdominal fat. In contrast, meat quality characteristics were affected (P < 0.05) by dietary inclusion of fava beans. Accordingly, breast and drumstick muscles of birds fed the fava bean diets had lower L* (lightness) and higher a* (redness) and b* (yellowness) values when compared with birds fed the soybean meal diets. Total collagen and water-holding capacity values were higher in the fava bean treatment. The polyunsaturated fatty acid concentration in breast and drumstick muscles was significantly increased with inclusion of the alternative protein source, whereas the saturated fatty acid concentration was similar among treatments. The n-6:n-3 polyunsaturated fatty acid ratio of the broiler muscles decreased significantly in the fava bean group. It was concluded that replacing soybean meal with dehulled-micronized fava beans at 31% of the diet had no adverse effect on broiler growth performance and meat quality.
Antioxidants, May 20, 2023
Vitamin A is a fat-soluble vitamin that cannot be synthesized in the body and must be obtained th... more Vitamin A is a fat-soluble vitamin that cannot be synthesized in the body and must be obtained through diet. Despite being one of the earliest vitamins identified, a complete range of biological actions is still unknown. Carotenoids are a category of roughly 600 chemicals that are structurally related to vitamin A. Vitamin A can be present in the body in the form of retinol, retinal, and retinoic acid. Vitamins are required in minute amounts, yet they are critical for health, maintenance, and performing key biological functions in the body, such as growth, embryo development, epithelial cell differentiation, and immune function. Vitamin A deficiency induces a variety of problems, including lack of appetite, decreased development and immunity, and susceptibility to many diseases. Dietary preformed vitamin A, provitamin A, and several classes of carotenoids can be used to meet vitamin A requirements. The aim of this review is to compile the available scientific literature regarding the sources and important functions, such as growth, immunity, antioxidant, and other biological activities of vitamin A in poultry.
The performances of dairy ewes reared on permanent stabling system as affected by the fence width
Reproduction in Domestic Animals, Jul 2, 2015
Optimal reproduction is very closely tied with optimal nutrition, and early-lactation diets in co... more Optimal reproduction is very closely tied with optimal nutrition, and early-lactation diets in cows are critical to successful reproduction and monitoring is important. To evaluate the effects of different dietary protein sources on metabolic parameters and reproductive activity, a total of 36 Italian Friesian early-lactating dairy cows were assigned for 16 weeks to three dietary treatments as follow: the control diet contained soya bean meal (SBM) as the main protein source, whereas the experimental diets contained faba bean (FB) or pea seeds (PS) as alternative protein sources. Diets were formulated to be isocaloric and isonitrogenous. Cow blood samples were collected, and plasma were analysed for metabolites, biological enzymes, b-hydroxybutyrate (BHBA) and non-esterified fatty acids (NEFA). Feeding alternative protein sources had no effects on most metabolic blood profile, except for blood cholesterol, triglycerides and urea. Results from reproductive parameters indicated that cows fed FB diet had a lower insemination index, but a shorter calving to conception period and an improved conception rate and artificial insemination outcome, when compared to cows fed SBM or PS diets. It can be concluded that replacing conventional dietary SBM with alternative protein sources, especially FB, resulted in improved reproductive performances and metabolic parameters in early-lactating dairy cows.
Dietary supplementation with selenium and vitamin E improves milk yield, composition and rheological properties of dairy Jonica goats
Journal of Dairy Research, Jan 25, 2011
The objective of this study was to evaluate the effect of dietary supplementation with selenium (... more The objective of this study was to evaluate the effect of dietary supplementation with selenium (Se) and vitamin E (VitE) on milk yield, composition and renneting parameters in dairy Jonica breed goats. Forty multiparous lactating goats fed the same basal diet were randomly allocated to 1 of 2 dietary treatments: for 135 days, the experimental period. Basal diet was composed by ad libitum mixed vetch-oat hay and a definite amount of a pelleted concentrate. Dietary treatments included: (1) the control diet containing background Se and VitE only, and (2) the experimental diet containing sodium selenite as the Se supplement in concentrate (0·20 mg/head per day of Na-selenite and 20 mg/day per head of VitE). During the trial, no significant differences (P>0·05) were registered in dry matter intake and body weight gain among groups. Goats fed Se-VitE diet showed the highest milk production (P<0·05), and fat (P<0·01) and protein (P<0·05) yields and percentages. Somatic cell count were significantly lower in Se-VitE diet compared with control group (P<0·05). Significant differences (P<0·05) were observed in milk renneting properties. Based on our results, it was concluded that dietary supplementation with SE and VitE led to an increase of milk production and quality in Jonica goat, with positively improvement in milk coagulation aptitude.
Indian Journal of Animal Sciences, Jul 28, 2021
This study aimed to test the hypothesis that lower levels of pennyroyal (Mentha pulegium L.) extr... more This study aimed to test the hypothesis that lower levels of pennyroyal (Mentha pulegium L.) extract can improve growth traits, blood constitutes, immunity and microflora in broilers up to 42-days production cycle. A total of 300 broiler chicks (Ross 308) were randomly distributed into five dietary treatments, with three replicates per treatment (20 birds per replicate) as follows: control group received a basal diet with no pennyroyal supplementation, whereas the treatment-groups fed the basal diet including different pennyroyal levels (100, 200, 300 and 400 ppm, respectively) in drinking water. Feeding of pennyroyal during the whole rearing period partly affected body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR) of broilers. Pennyroyal extract at different levels significantly lowered blood total cholesterol and triglycerides of birds. Results also showed significantly higher high-density lipoprotein (HDL)-cholesterol and lower low-density lipoprotein (LDL)-cholesterol levels in pennyroyal-supplemented group. Further, a significant increase of antibody production to total sheep red blood cells (SRBC) and IgM at 42 days of age was observed. Broilers receiving 100 ppm pennyroyal extract had the lowest count of E. coli bacteria in ileum. Overall, based on our findings, supplementing pennyroyal affected positively broiler growth traits, blood parameters and reduced harmful intestinal bacteria.
Effects of feed supplementation with lavender (Lavandula angustifolia) essence on growth performance, carcass traits, blood constituents and caecal microbiota of broiler chickens
Animal Feed Science and Technology, Nov 1, 2011
Little scientific information is available that evaluates wheat middlings (WM) as corn grain subs... more Little scientific information is available that evaluates wheat middlings (WM) as corn grain substitute in lamb diet. The objective of this work was to evaluate the effect of feeding WM in total mixed rations (TMR) on lamb performance and carcass characteristics. Forty Comisana breed male lambs (13 ± 0.5 kg BW) were allocated randomly to two isocaloric and isonitrogenous diets. Two pelleted TMR were formulated: control diet contained 400 g/kg of dry matter (DM) of corn as main starch source, whereas experimental diet contained 600 g/kg DM of WM. Lambs were slaughtered after fifty days of feeding trial and carcass data were collected. In order to evaluate in vivo digestibility of TMR, four adult Comisana rams were placed in metabolic cages and their individual faeces and urine were collected, and indicated differences for NDF and ADF fractions. Results from growth trial of lambs showed that final live weight and gain as well as feed conversion ratio were improved by WM in diet (P=0.035). In slaughter trial, none of the parameters studied were influenced by dietary treatment, except for slaughter weight and cold-carcass dressing that were improved in lambs fed WM (P=0.047 and P=0.042, respectively). Additionally, WM diet had no effect on lamb carcass traits. As result, WM maintained lamb performance and had no negative effect on lamb performance and carcass traits. Maximizing the use of WM may become economically feasible for lamb feeders when prices turn favorable compared to conventional dietary ingredients such as corn.
Impiego DI Saponi DI Calcio in Pecore in Lattazione a Stabulazione Permanente: 2° Aspetti Qualitativi
Moving towards a horizontal and vertical integrated curriculum, Work-Station Learning Activities ... more Moving towards a horizontal and vertical integrated curriculum, Work-Station Learning Activities (WSLA) were designed and implemented as a new learning instrument. Here, we aim to evaluate whether and how this specific learning model affects academic performance. To better understand how it is received by medical students, a mixed methods research study was conducted. In the quantitative strand, two cohorts of first year students were compared: academic year 2015-2016 n = 320 with no exposure to WSLA, and academic year 2016-2017 n = 336 with WSLA. Learning objectives at different levels of Bloom's taxonomy were identified and performance evaluated from multiple-choice questions. In the qualitative strand, a total of six students were purposely selected considering academic performance and motivation, and submitted to semistructured interviews. Performance at both cohorts for learning objectives at lower levels of Bloom's taxonomy was similar (38.8 vs. 39.0%; p = 0.955). In contrast, students in the WSLA group outperformed significantly those not exposed for learning objectives involving upper levels (68.5 vs. 54.2%; p <0.001). A multivariate analysis confirmed that the probability of mastering the second (more complex) objective is 1.64 times higher in students with WSLA methodology (OR 95% CI, 1.15-2.34; p = 0.007) than with traditional methodology. In the interviews, students perceived the clinical scenario of WSLA as a motivator and recognized this methodology as a more constructive framework for understanding of complicated concepts. In summary, our mixed methods research supports WSLA as a strategy that promotes deep learning and has a positive impact on academic performance for learning objectives involving higher order thinking skills in medical curricula.
The Effect on Milk Yield and Composition in Ewes Fed on Different Amounts of Calcium Soaps Supported by Rumen Protected Methionine
The utilization of artichoke bracts (Cynara scolymus L.) in diets for meat kids
Effects of dietary safflower oil and sex on growth performance and carcass composition of wild ducks (Anas platyrhyncos)
Residues of polichlorinated biphenyls and organochlorine pesticides in different avian species from Italy
The utilization of wheat germ in fattening turkeys reared in two different environments. 1: Performances and carcass quality [Apulia]
Faecal liquor as alternative microbial inoculum source for in vitro (DaisyII) technique to estimate the digestibility of feeds for camels
Methanolic extract of neem (Azadirachta indica) leaves mitigates experimentally induced coccidiosis challenge in Japanese quails
Journal of Applied Animal Research, Aug 8, 2022
Efficacy and role of inulin in mitigation of enteric sulfur-containing odor in pigs
Journal of the Science of Food and Agriculture, Oct 18, 2016
The efficacy and role of inulin on mitigation of enteric sulfur-containing odor gases: hydrogen s... more The efficacy and role of inulin on mitigation of enteric sulfur-containing odor gases: hydrogen sulfide (H2 S) and methyl mercaptan (CH3 SH) in pigs were examined in this study. Twelve Duroc × Landrace × Yorkshire male finisher pigs (60.7 ± 1.9 kg), housed individually in open-circuit respiration chambers, were randomly assigned to 2 dietary groups, a basal diet (control) and basal diet supplemented with 1% inulin. At the end of 45-day experiment, pigs were slaughtered and volatile fatty acids (VFA) concentration, sulfate radical (SO4 (2) (-) ) concentrations, population of sulfate-reducing bacteria (SRB) and expression of methione gamma-lyase (MGL) gene were determined in contents from the caecum, two segments of the colon, and rectum. Metabonomics analysis was used to compare differences of biochemical composition contents, and Illumina MiSeq procedure was used to investigate the difference of bacterial component, in different part of the large intestine between inulin supplemented and inulin free (control) groups. Results show that inulin decreased (P&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05) the average daily enteric H2 S and CH3 SH production by 12.4 and 12.1%, respectively. The concentrations of acetate, propionate and butyrate in the large intestinal content with inulin treatment were significantly increased (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05) whereas valerate concentrations and MGL mRNA expression decreased (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05). Our results show that inulin mitigates CH3 SH generation via 3 methionine degradation metabolic pathways and H2 S generation from 2 cysteine degradation metabolic pathways, thus resulted in incline in synthesis of the above two sulfur-containing amino acids in large intestine in pig. The growth of Lactobacillus, Butyrivibrio, Pseudobutyrivibrio, Bifidobacterium and Clostridium butyricum was stimulated while Desulfovibrio, the dominant sulfur reduction bacteria (SRB) was inhibited, and an accumulation of SO4 (2) (-) in the large intestinal content of inulin supplemented pigs, suggesting that inulin mitigates H2 S generation from SO4 (2) (-) reduction pathway by reduce the growth of SRB.
Practical applications of agricultural wastes in poultry feeding in Mediterranean and Middle East regions. Part 2: tomato, olive, date, sunflower wastes
Worlds Poultry Science Journal, Sep 1, 2018
Agroindustry wastes from tomato, olive, date and sunflower processing have valuable nutritional c... more Agroindustry wastes from tomato, olive, date and sunflower processing have valuable nutritional characteristics, and could be included in poultry rations to facilitate reducing feeding costs. By-products of tomato and olive processing can be supplemented in the diet of broilers and laying hens by up to 10% without detrimental effects on production, whilst improving the biochemical blood profile and enhancing the oxidative status of birds. Published research has shown that feeding sunflower and date wastes could be successfully added to diet at high inclusion levels (up to 30 and 40%, respectively) resulting in heavier broiler carcasses and increased number of eggs produced by laying hens. In this paper, applications of agricultural wastes and by-products in poultry feeding is reviewed, and the documented and novel findings related to their influence on poultry production, health and gut microbiota are discussed.
Feeding of black cumin (Nigella sativa L.) and its effects on poultry production and health
Worlds Poultry Science Journal, Apr 2, 2020
SUMMARY Black cumin (Nigella sativa L.) is a perennial and autogamous plant belonging to Umbellif... more SUMMARY Black cumin (Nigella sativa L.) is a perennial and autogamous plant belonging to Umbelliferae family, which grows in Central Asia and Europe. It is a medicinal plant, with seeds and oil used in treating several diseases and is employed in the human food industry. Reduction of blood sugar and anticancer effects are the main therapeutic properties of black cumin oil. Hypoglycaemia and hypocholesterolemia are two modern lifestyle diseases, and feeding of black cumin may be useful to solve these conditions. The available literature reports that the addition of black cumin seeds improved performance (at supplementation levels of 3-5% in diet) and influenced positively (at supplementation levels of 2-3% in diet) the intestinal microflora of broilers. Black cumin oil, administered up to 3% in the diet, reduced the number of thrombocytes and neutrophils and increased lymphocytes in broilers. Black cumin seeds may increase the content of unsaturated fatty acids and enhance the antioxidant properties of poultry meat (when fed up to 2% in diet). In laying hens, feeding black cumin oil at 1-2% in feed increased egg mass and improved egg quality, especially in the early production phase, and reduced gut E. coli count. Dietary supplementation with black cumin (2% as seeds or 0.5% as oil) in quail diets improved performance (growth and egg production) and reduced significantly the harmful bacteria in the gut. In this review, the recent findings on the effects of dietary black cumin on poultry performance, immune response, plasma constitutes, gut microbiota and enzyme activity are reviewed and discussed.