egg yolk is the most commonly used cryoprotective agent for sperm cryopreservation of several species.the objective of this experiment was to compare the effectiveness of egg yolk from four avian species(domestic chicken, duck, turkey and pigeon) on sperm quality following cryopreservation of the ram semen.ejaculates were collected, using an electroejaculator, from six fertile rams. samples wer...

The effects of dietary vitamin A supplementation on reproductive performance, liver function, fat-soluble vitamin retention, and immune response were studied in laying broiler breeders. In the first phase of the experiment, 1,120 Ross-308 broiler breeder hens were fed a diet of corn and soybean meal supplemented with 5,000 to 35,000 IU/kg vitamin A (retinyl acetate) for 20 weeks. In the second ...

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...

The aim of the study was to investigate effect short-term dietary spirulina supplementation (1% and 3%) strain laying hens (White Leghorn: WL Rhode Island Red: RIR) on color, nutritional value, stability yolk. Egg weight not affected by any studied effects. Yolks from 3%-spirulina supplemented had higher retinol lower α-tocopherol content (p = 0.0001) when compared control. with 1%-spirulina ma...

Purpose: checking the assimilation of beta-carotene from a nanostructured globe and influence 10% on productivity organoleptic qualities products. Materials methods. Experience was conducted basis Russian Pularka farm "Russian Pularia" Leningrad Region. 2 groups quail meat - egg direction Estonian breed were formed for 10 goals at age 50 days beginning production. All quails contained in same c...

Two hundred and sixteen Institut de Sélection Animale (ISA) brown layers (40 wks of age) were studied for 6 wks to examine the effect of microalgae powder (MAP) on egg production, egg quality, blood lipid profile, and fatty acid concentration of egg yolk. Dietary treatments were as follows: i) CON (basal diet), ii) 0.5% MAP (CON+0.5% Schizochytrium powder), and iii) 1.0% MAP (CON+1.0% Schizochy...