The present study was aimed to investigate the mechanism underlying the influence of maternal low-protein (LP) diet on offspring growth in the chicken. One hundred and twenty Chinese inbred Langshan breeder hens were allocated randomly into two groups fed diets containing low (10%, LP) or normal (15%) crude protein levels. Low dietary protein did not affect the body weight of hens, but signific...

Sir,—I refer to the recent review by Phillips, Daborn and Hatch [1]. Between 1991 and 1993 the Department of Anaesthetics in Newcastle examined the problem of preoperative fasting intervals for children presenting for routine surgery. An initial audit revealed that many children were undergoing prolonged fasts before anaesthesia. After reviewing the literature [2], 8 clear fluid fast of 2 h was...

The current study was conducted to investigate the effects of genetic and non-genetic factors on body weight and carcass traits of Japanese quails. Two strains of Japanese quail (150 wild quails and 150 white quails) were used as base population. Four mating groups were used to produce progenies: wild male × wild female, white male × wild female, wild male × white female and white male × white ...

Albumen was removed from broiler eggs before the start of incubation to induce prenatal protein under-nutrition in chicken embryos. With this method, the direct effect of protein deficiency was investigated, differing from mammalian models manipulating the maternal diet where indirect, hormonal effects can interfere. Based on the estimated albumen/egg weight ratio, 10 % of albumen was removed w...

Genetic selection for improved meat yields, digestive efficiency and growth rates have transformed the biology of broiler chickens. Modern birds undergo a 50-fold multiplication in body mass in just six weeks, from hatching to slaughter weight. However, this selection for rapid growth and improvements in broiler productivity is also widely thought to be associated with increased welfare problem...

Sir,—I refer to the recent review by Phillips, Daborn and Hatch [1]. Between 1991 and 1993 the Department of Anaesthetics in Newcastle examined the problem of preoperative fasting intervals for children presenting for routine surgery. An initial audit revealed that many children were undergoing prolonged fasts before anaesthesia. After reviewing the literature [2], 8 clear fluid fast of 2 h was...

Submitted: Jan 2, 2013; Accepted: Feb 6, 2013; Published: Aug 18, 2013 Abstract: This study was undertaken to determine the effects of divergent selection and different positions of Japanese quail eggs in artificial incubation on hatchability, egg weight loss, chick weight. 300 Japanese quail (100 birds in each line) were used for egg collection. These lines have been selected for high (HW) and...