Breeder Age Influences Embryogenesis in Broiler Hatching Eggs
نویسندگان
چکیده
منابع مشابه
Breeder Age and Zinc Source in Broiler Breeder Hen Diets on Progeny Characteristics at Hatching
Metabolic, immune, and physical status of chicks can impact the incidence of morbidity and mortality of broilers during the first week of production. Assessments of chick quality are made primarily by subjective observations with few quantitative measurements. Given a better understanding of how broiler breeder hen age and nutrient intake may influence progeny physiology, certain actions can be...
متن کاملEffects of incubator humidity and hen age on yolk composition in broiler hatching eggs from young breeders.
The effects of broiler breeder age (26, 28, and 30 wk) and incubator relative humidity (43, 53, and 63% RH) on yolk sac weight and composition in broiler hatching eggs between 16 and 19 d of incubation were evaluated. Percentage yolk sac weight was reduced in eggs from the youngest (26 wk) breeder hens and in eggs incubated at 53% RH. Percentage yolk moisture, in eggs from the youngest hens, wa...
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The effects of dark-control (D) and continuous green light (GL) exposure of incubated meat-type breeder eggs (Hybro) on embryonic growth from 5 to 15 days of age, hatching time, hatchability per cent and chick hatching weight were investigated in three consecutive experiments at 33, 38, and 41 weeks of age. A total of 798 eggs were used in this study. Eggs were set in an incubator on trays eith...
متن کاملHatching Eggs & Other 64
s of papers 17 a significant improvement in growth, feed efficiency, or mortality under conditions of this trial.
متن کاملEffect of flock age, length of egg storage, and frequency of turning during storage on hatchability of broiler hatching eggs.
Broiler hatching eggs from two young (30 and 31 wk) or two old (52 and 53 wk) breeder flocks were stored for 3, 7, or 14 d at 18 C and 75% RH while being turned 0, 4, or 24 times per day in two experiments. Apparent fertility and hatchability of total eggs differed with flock age in both experiments, but the effect was greater in Experiment 1. Hatchability of total and fertile eggs were decreas...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 2001
ISSN: 0032-5791
DOI: 10.1093/ps/80.3.272