Influence of Different Oils, Organic and Inorganic Selenium and Vitamin e on Laying Hens' Productivity and Blood Parameters (original) (raw)
Related papers
Changes in performance, egg quality and blood parameters of laying hens fed selenium and oregano oil
Animal Production Science, 2020
Context Organic and herbal additives in feed may lead to more healthy animal products. For this study, we hypothesised that an organic form of selenium and/or a herbal additive (oregano, Origanum vulgare L.) may improve performance of laying hens. Aims The study was designed to determine the effects of selenium source (SS, sodium selenite; or selenium yeast, SY), oregano essential oil (OEO) and a combination of Se and OEO on performance, egg quality and blood parameters of laying hens. Methods In total, 216 Lohmann LSL-Lite laying hens, 66 weeks of age, were assigned to feed on one of six diets: control group, receiving basal diet (BD); BD + 0.3 mg SS/kg; BD + 0.3 mg SY/kg; BD + 250 mg OEO/kg; BD + 250 mg OEO + 0.3 mg SS/kg; BD + 250 mg OEO + 0.3 mg SY/kg. For each treatment, there were six replicates of six hens each for 12 weeks. Key results Feed conversion ratio was higher (P < 0.05) with the OEO diet than in the control. The SY diet decreased egg production and the OEO diet d...
AFRICAN JOURNAL OF BIOTECHNOLOGY
The aim of this study was to determine the effects of different vitamin-E and organic selenium (selenomethionine) levels on performance and immune response of laying hens. A total of 270 laying hens (65-weeks old Lohman-LSL Lite) were assigned to nine experimental diets consisting of nine replicates (cage) and six hens per cage. A 3×3 factorial arrangement including three levels of vitamin E (0, 125 and 250 mg/kg diet from α-tocopherol acetate) and three levels selenium (0.0, 0.50 and 0.75 mg/kg diet from selenomethionine) was employed for six weeks trial period. The hens performance including hen-day egg production%, feed intake, egg mass (g/hen/day) and feed conversion ratio (FCR, g feed: g egg) were measured. Antibody production against sheep red blood cells (SRBC) also was measured. The general linear model procedure of SAS software was used for data analysis and differences among treatment means was determined using the Duncan’s multiple-range test. The results show that the in...
A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental vitamin A up to 16,000 IU/kg diet significantly (P < 0.05) improved all productive traits studied except feed intake which increased with 8000 IU/kg diet compared with control. Feed intake and feed conversion of hens fed diet supplemented with selenium revealed high statistical (P = 0.001) differences. All egg quality criteria were not significantly (P < 0.05) affected by dietary vitamin A except albumin percentage and Haugh units, since Haugh unit score was gradually increased with increasing vitamin A level. Vitamin A-enriched groups showed significant (P < 0.05 and 0.01) decreases in plasma albumen, total lipids, and total cholesterol in respect to the unsupplemented groups. Compared with unsupplemented groups, total protein, albumin, total lipid, and total cholesterol were increased in selenium-enriched groups. There were no significant impacts of selenium treatments in layer diets on thyroid hormones and liver enzymes studied except alanine transferase (ALT) and thyroxin (T 4), as compared with the control group. Hematological parameters were not affected by vitamin A treatment except PCV% which decreased with vitamin A supplementation. Hemoglobin and lymphocytes were increased with increasing dietary selenium level. In conclusion, the combined supplementary concentrations of vitamin A (16,000 IU/kg) and selenium (0.25 mg/kg) might be needed for better production and health of laying hens reared under heat stress conditions.
2020
In this study investigated effect of the different levels of fish and rapeseed oils, selenium, vitamin E and zinc in diet laying hens288 white-line layers were used from 45 weeks of age during 90 days. The performance and quality traits including egg weight, intake of feed, egg laying percentage, egg shell weight, white weight, weight and color of yolk were evaluated during the experiment. The results showed that the effect of adding of these supplements to diet of laying hens on performance (egg weight, egg production and feed intake) was not significant. An insignificant increase in yolk weight and significant egg yolk color were observed in treatments containing 2% fish oil and 2% rapeseed oil at a level of 0.2% selenium. A significant decrease in triglyceride levels was observed in treatments containing higher selenium levels. There was a non significant reduction in its cholesterol levels. The amount of vitamin E and selenium in egg yolk increased significantly with increasing ...
International Journal of Biosciences, 2012
The aim of this experiment was to evaluate the effects of supplemented semi-refined vegetable oil (with or without vitamin E supplement) on egg characterizes. A factorial experiment (3×2) including 3 levels of semi-refined oil (2, 4 or 6%) and 2 levels of vitamin E (150 or 750 mg/kg diet) based on completely randomized design was performed with 212 laying hens (Hy-line W36) from 62w to 74w of age. Egg physical traits were estimated for eggs produced by layng hens fed experimental diets. Evaluated data during experimental period showed that utilization of semi-refined oil with vitamin E didn't have considerable effect on egg characterizes (egg shell weight, shell thickness and specific weight), with exception of haugh unit (p<0.05). Supplementation of 4 or 6% semi-refined oil caused highest haugh unit in produced eggs. Results obtained by supplemented 4% were more significant (haugh unit: 90.85). Supplementation of Vitamin E didn't has any considerable effect on egg characterizes; egg shell weight, shell thickness, specific weight, haugh unit. In overall, supplementation of semi-refined vegetable oil (with or without vitamin E supplement) didn't have any considerable effect on egg physical traits.
animal, 2011
To assess the effects of dietary oil source on productive and reproductive traits, sunflower oil, flax oil, corn oil or fish oil were induced in quail diets. One hundred and sixty eight 7 weeks old Japanese quail were randomly assigned to 4 groups (12 males and 30 female each) with 3 replicates per group containing 4 males and 10 females each and fed for 13 weeks (including one week as adaptation period) on a commercial diet supplemented with 3% of sunflower oil (T1), Flax oil (T2), corn oil (T3), or fish oil (T4). The birds received water and feed ad libitum during the study. Results of experiment revealed that dietary supplementation with different sources of oil had no significant effect on male body weight, female body weight and feed consumption of quails. Dietary fish oil at the inclusion level of 3% (T4) recorded the best results (p<0.05) in regard to egg weight, hen-day egg production, egg mass, cumulative egg production, feed conversion ratio, fertility, hatchability of eggs set, hatchability of fertile eggs and embryonic livability, followed by the results of flax oil (T2), whereas the lowest values for these traits recorded for corn oil (T3) followed by the results of sunflower oil (T1) which recorded the lowest means with relation to characteristics included in this study. However, there was no significant difference between T2 and T3 in respect to feed conversion ratio during the entire period of experiment. In general it can be recommended that use of fish oil (T4) and flax oil (T2) at levels of 3% in Japanese quail diet during the laying period get higher economic efficiency without adverse effects on productive and reproductive performance. Therefore, providing fish oil or flax oil to quail throughout their laying period may be a simple means to enhance reproductive efficiency of these birds.
International Journal of Health Sciences (IJHS), 2022
Nutrition supplementation in broiler breeder diets are necessary to provide the nutritional requirements for the optimal performance of the broiler breeder flock after significant genetic improvement of production performance. The study aimed to determine the effect of adding vitamin E and organic selenium to the diet of broiler breeder Rose 308 in the productive and reproductive traits. The experimental flock consist of 60 hens and 10 cocks at 41 weeks of age. The birds divided into four groups for treatments application, and each treatment had three replicates (five hens per replication). The first treatment T1 fed a standard diet without addition (control) containing 15% crude protein and metabolic energy 2775 kilocalories / kg of diet, and T2 used a standard diet and 500 mg vitamin E / kg of diet supplementation, and T3 used a standard ration plus 0.5 mg of organic selenium (Availa powder) / kg of diet supplementation, and T4 used a standard diet plus a mixture of vitamin E and organic selenium (Availa powder) in proportions 500 and 0.5 mg, respectively. The results showed a significant superiority of the second treatment over the control treatment and other treatments in egg weight, as well as the T1 and T2 recorded significant high number of eggs, the percentage of egg production and the number of weekly eggs / hen compared with T4 group There were no significant differences among treatments in the characteristics of egg quality, fertility and hatchability.
RESPONSE OF LAYING HENS TO DIETARY VITAMINS A, E AND SELENIUM SUPPLEMENTATION DURING SUMMER MONTHS
The current study aimed to investigate the effects of extra dietary supplementations of vitamins A, E and Selenium and their interactions on the performance of laying hens during summer months. A total of 243 Bovans laying hens 42 weeks old were randomly distributed into a factorial design experiment (3×3×3); including 3 levels of vitamin A (0, 8000, 16.000 IU/kg diet), 3 levels of vitamin E (0, 250, 500 mg/kg diet) and 3 levels of inorganic-selenium, (0, 0.25, 0.50 mg/kg diet). Results obtained showed that most values of live body weight and change in live body weight did not significantly differ due to A, E and Se supplementations and their interactions at all ages studied. Increasing the level of supplementations was associated with the decrease in feed intake and improving feed conversion. The effects of supplementations and their interactions were highly significant (P≤0.01) on feed intake and feed conversion. Increasing the level of vitamin A up to 16000 IU/kg diet had the highest (P≤0.05) monthly egg number and egg mass. Vitamin A increased (P≤0.05 and 0.01) each of egg length at 46 and 50 weeks of age and haugh units at 54 weeks of age. The higher level of supplemented dietary vitamin E led to a significant (P≤0.05) decrease in shell thickness and haugh units. Most of the egg quality traits fluctuated significantly (P≤0.05 and 0.01) with the high level of Se. The interactions among supplementations did not significantly affect egg quality traits. In conclusion, the results of the present study demonstrate that it may be suggested use each of vitamins A and E (together) at extra levels up to 16000 IU/kg diet of vitamin A and 500 mg/kg diet of vitamin E. Se levels need more investigations to detect its suitable level alone or with vitamin E in laying diets to reduce the negative effects of summer months.