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...

Unabsorbed yolk sacs are being investigated as a possible reservoir for internal Campylobacter and salmonellae contamination of processed poultry carcasses. However, it is unknown at what frequency that unabsorbed yolk sacs persist at the time of processing of broilers and spent breeders. Seven sets of 100 broiler carcasses (at 6 or 8 wk of age) were obtained from commercial processing plants. ...

The present study was conducted to determine egg production traits and egg quality characteristics in black and brown lines of Japanese quail. A total of 500 quails comprising 400 females and 100 males obtained from two breeding centers were raised according to the standard procedure for Japanese quail. They were grouped in according to their plumage colours. Age at first egg-laying has been re...

Abstract The experiment studied the effects of different levels Rumex patientia spp. leaf powder inclusion in laying hens’ diets on their physical parameters and yolk color intensity. study was conducted 168 Hy-line hens (30 weeks aged), assigned 3 treatment groups (C, E1 E2) housed an experimental hall equipped with Big Dutchman cages, placed tiers digestibility cages (3 treatments × 28 replic...

Yolk spheres present in mature invertebrate oocytes are composed of yolk proteins and proteolytic enzymes. In the fly Musca domestica, yolk proteins are degraded during embryogenesis by a cathepsin-like proteinase that is stored as a zymogen. An acid phosphatase is also active in the yolk spheres during Musca embryogenesis. In this paper we show that procathepsin and acid phosphatase are initia...

The correlation of yolk cholesterol and yolk fat concentrations of egg from the pedigreed Athens-Canadian Randombred control population with the percentage of abdominal fat (AF) and feed conversion ratio (FCR) of their progeny were studied. The average yolk cholesterol, yolk fat, and AF were 20.3 mg/g yolk, 244 mg/g yolk, and 1.64%, respectively. The phenotypic correlation of both yolk choleste...

The discovery by Schwabl that maternal steroid hormones are transferred to the egg yolk and have effects on the phenotype of offspring revealed a new pathway for non-genetic maternal effects. The initial model relied on passive transfer. The thinking was that steroids passively entered the lipophillic yolk during yolk deposition and then were deposited in the yolk until they were passively deli...