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...

Cysteamine has been reported to modulate energy homeostasis and exert significant growth-promoting effects in broiler chickens. However, little is known concerning its effects on egg production of hens and the growth rate of their offspring. In the present study, 67-wk-old broiler breeders were allotted at random to control and cysteamine-supplemented (400 mg/kg) groups for 8 wk. The hatchlings...

The effect of residual yolk removal at hatch on growth and feeding behavior was assessed in lines of chickens divergently selected for low (LW) or high (HW) 56-day body weight. At hatch chicks were assigned to 1 treatment: removal of the residual yolk (R) or no surgery (I). Twenty-four chicks per line (12 I and 12 R) were assigned to an all-mash regimen (M) and 48 per line (24 I and 24 R) to a ...

1. The livetin patterns of the two species Crocodylus porosus and Gallus domesticus were very different and it was difficult to find a correspondence. 2. In C. porosus the granules were a larger proportion of the total yolk but they contained very little lowdensity lipoprotein when compared with granules from hens' eggs. 3. The low-density lipoprotein was a lower proportion of the yolk of C. po...

CTSD (Cathepsin D) is a key enzyme in yolk formation, and it primarily affects egg yolk weight and egg weight. However, recent research has mostly focused on the genomic structure of the CTSD gene and the enzyme's role in pathology, and less is known about the enzyme's functions in chickens. In this paper, the correlations between CTSD polymorphisms and egg quality traits were analyzed in local...

With the aim to establish the effect of the product Vemoherb-T (dry extract of Tribulus terrestris L) on egg yolk lipids and serum total cholesterol content, the trial was designed with 30 Pearl gray Guinea fowls, at the age of 32 weeks, randomly distributed in control and experimental groups, 12 female and 3 male each. All birds received the same mixture for breeder Guinea fowls. The tested pr...

To evaluate the possibilities of applying plasma retinol as a biomarker of response in seabirds exposed to chronic low levels of organochlorines, the relationship between yolk content of polychlorinated biphenyls (PCBs) and plasma retinol levels were studied in newly hatched shag chicks (Phalacrocorax aristotelis) from the coast of central Norway. The mean concentration of 29 PCB-congeners (Sig...

BACKGROUND Burn injury is a major cause of death and disability worldwide. A domestic medication in wound healing, preventing infection and reduction of scar tissue as well as availability is still an important challenge. This study aims to evaluate the efficacy of yolk egg oil in treatment of burn wounds in rats. METHODS A standard 3rd degree burn wound was produced and the animals were divi...