background: improvement of hatchability in aging broilerbreeder has economic justification. objectives: the main objective ofthis study was to determine the effect of dietary anethum graveolensessential oil on egg quality, some plasma metabolites and hatchability inbroiler breeder hens. methods: a total number of eighty hens and eightcocks from ross 308 strain of 105 weeks old were divided into...

In recent years, the consumer’s desire for healthier foods has increased the demand for animal products containing low cholesterol and enriched with omega-3 fatty acids. In response to the perceived need, poultry researchers have focused on reducing egg yolk cholesterol to satisfy the health conscious of consumers. The present study was conducted to determine the effects of dietary forage legum...

in this experiment, a total of 128 hy-line w36 hens at 63 weeks of age were used. the hens were put at random into 4 treatment groups (4 replicates and 32 hens per treatment) and were fed four different diets: three diets with different levels of spirulina (1.5, 2.0 and 2.5%) and one control group based on wheat and soybean meal. all birds were housed in commercial cages, had ad libitum access ...

the present study was carried out to investigate the replacement of soybean meal by different levels of canola meal (either with or without canola meal undergoing heat processing). two hundred forty commercial layer hens (lsl strain) at 54th week of age, selected based on the same egg production percentage and body weight. the experimental design was a crd, in a factorial arrangement of 4 repli...

abbasali gheisari*, peyman ghayor department of animal science, isfahan research center for agriculture and natural resources, isfahan,iran   * corresponding author e-mail: [email protected]     received: 15 august 2013 accepted: 21 november 2013       abstract   this experiment was conducted to investigate the effect of feeding 5 experimental diets containing 0, 5, 10, 15 and 20% rapesee...

The experiment was carried out to evaluate the effects of supplementing laying hen diets with different percentages of black tea factory waste (BTFW), evaluating performance, egg quality, yolk oxidation, and blood parameters. Twenty-four-week-old Lohmann layers (n=144) were divided into six dietary treatment groups (24 hens each), which were fed standard commercial diets supplemented with 0% (c...

In this experiment, a total of 128 Hy-line W36 hens at 63 weeks of age were used. The hens were put at random into 4 treatment groups (4 replicates and 32 hens per treatment) and were fed four different diets: three diets with different levels of Spirulina (1.5, 2.0 and 2.5%) and one control group based on wheat and soybean meal. All birds were housed in commercial cages, had ad libitum access ...

This research aimed to compare the effects of pigments extracted from dried petal meal of marigold flower and synthetic pigments on productive performance of laying hens, egg quality and antioxidant properties of the egg. A total of 64 laying hens, aged 75 weeks, were distributed in a completely randomized design in 4 treatments and 4 replications containing 4 hens per cages. Experimental group...

sodium bentonite can bind to dietary pigment and decreases yolk color scale. sodium bentonite is one of the main parts of formycine® gold, the effect of different levels of formycine® gold and dietary pigment on egg quality, egg yolk color and performance criteria of laying hens from 26 to 34 week of age were studied. one hundred ninety two hy-line hens were divided into 24 groups of 8 birds ea...