نتایج جستجو برای: yolk weight and egg weight for other traits
تعداد نتایج: 19091545 فیلتر نتایج به سال:
this experiment was designed to evaluate the effects of different sources of calcium at different rates and cholecalciferol(vitamin d3) on the performance and egg quality of hy-line w-36 laying hens. in this study a total of 648 hens were managed in a completely randomized design using a factorial arrangement of 3 × 3 × 2 treatments, with three calcium sources (oyster shell, os; ground limeston...
In this study, selection strategies were simulated to find optimal selection strategy in Japanese quails. Breeding goal was consisted of body weight and egg weight traits. Effects of using genetic markers related to carcass weight were investigated by five different selection strategies. In this case, breeding goal included body weight, egg weight and carcass weight. Deterministic simulation, b...
This study was conducted to investigate the effects of different levels of black cumin powder on performance, yolk cholesterol content and egg oxidative stability in laying hens. A total of 96 Leghorn laying hens (Hy-Line W-36) of 25 weeks old were randomly distributed among eight cage replicates of three birds each. Experimental diets consisted of different levels (0, 5, 10 and 15 g/kg of diet...
This experiment was conducted to investigate the effects of egg yolk and soybean oil as early feeding to broiler chicks on growth performance and intestinal morphology. A number of 525 chicks (Ross 308) were allocated to 7 treatments with 5 replicates and 15 birds in each replicate in a completely randomized design. Treatments were: control group (without early feeding), and feeding of 0.4 and ...
Experiments were conducted to evaluate the potential for dietary garlic to influence egg yolk cholesterol concentrations and overall performance in different layer strains. Thirty-six, 28-wk-old, Hisex Brown,Isa Brown, Lohmann, Starcross, Babcock, and Starcross-579 strains (six hens per strain) were fed diets supplemented with 0 (control), 2, 4, 6, 8, or 10% sun-dried garlic paste for 6 wk. The...
The objective of this study was to evaluate the effects of storage temperature and time on the quality parameters of eggs from laying hens at peak production. A total of 576 eggs were obtained from Lohmann Light-Brown hens, which were collected 3 times when the hens were 26, 27, and 28 weeks old. The fresh eggs were collected and measured within 2 h of being laid. Samples of 48 eggs each were s...
This experiment was designed to evaluate the effects of different sources of calcium at different rates and cholecalciferol(Vitamin D3) on the performance and egg quality of Hy-line W-36 Laying hens. In this study a total of 648 hens were managed in a completely randomized design using a factorial arrangement of 3 × 3 × 2 treatments, with three calcium sources (oyster shell, OS; ground limeston...
At the present study, the observations of performance traits including body weight at 8 and 12 weeks of age, age at sexual maturity, egg weight and egg number were analyzed to detect major genes in Yazd native fowl. The probability of segregation for major genes was studied using simple tests including tests of normality, Bartlett, Levene and Fain for residuals and Bayesian analysis. Segregati...
Hadi Ghaemi1, Ali Nobakht2*, Sarayen Razzaghzadeh1 1-West Azarbijan Jahad and Agriculture Faculty, Iran 2- Maragheh Branch, Islamic Azad University, West Azarbaijan, Iran *Corresponding author Email: [email protected] Received: 1 August 2013 Accepted: 21 November 2013 Abstract This experiment was conducted to evaluate the effects of different levels of apple pulp and m...
this experiment was conducted to investigate the effect of antibiotic, organic acid, probiotic and prebiotic on quality traits of eggs, egg yolk lipids and blood metabolites of laying hens strain hy-line (w-36). the experiment was carried out as a completely randomized design from 32 to 42 weeks of age with 5 treatments, 4 replicates and 8 hens in each replicate. the experimental treatments con...
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