The effect of reproduction phase of breeder hens, poult hatch time, and fatty acid supplementation of the breeder hen diet on livability, growth characteristics, and yolk and liver fatty acid composition in posthatch poults

Turner, K.

doi:10.31274/rtd-180813-11289

Cited by 1 publication

(1 citation statement)

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“…Continued functional differences, however, may persist. Signi®cantly lower pancreatic lipase and jejunal maltase in 4-day-old poults from hens in their ®rst week of egg production as compared to those in their seventh week of egg production were noted by Turner (1995). These studies, though, did not account for differences in egg size.…”

Section: Poults From Young Hens: Differences In Intestinal Developmentmentioning

confidence: 75%

Reproductive maturity of turkey hens: egg composition, embryonic growth and hatchling transition

Applegate¹

2002

Avian & Poul. Biolog. Rev.

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Selection for body weight in commercial turkey strains has resulted in faster growing turkeys with improved feed efficiencies. These genetic gains, however, have come largely at the expense of reproductive fitness. In particular, considerable variability exists in early egg production. This variation greatly impacts egg composition, which in turn can affect embryonic growth and post-hatching transitions from an embryonic lipid-based metabolism to a glucose-based metabolism. Notably, embryos from young hens develop more slowly than embryos from older hens during the last week of incubation. Further studies have shown that these developmental differences are in part due to a proportional increase in yolk mass in eggs from older hens; which allows for a greater mass transfer of yolk lipid to the embryo during the final week of incubation. Hypothetically, developmental differences during incubation may contribute to problems that occur during the acclimation period after hatching, especially if hatchlings come from very young hens.

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Section: Poults From Young Hens: Differences In Intestinal Developmentmentioning

confidence: 75%

Reproductive maturity of turkey hens: egg composition, embryonic growth and hatchling transition

Applegate¹

2002

Avian & Poul. Biolog. Rev.

View full text Add to dashboard Cite

show abstract

The effect of reproduction phase of breeder hens, poult hatch time, and fatty acid supplementation of the breeder hen diet on livability, growth characteristics, and yolk and liver fatty acid composition in posthatch poults

Cited by 1 publication

References 71 publications

Reproductive maturity of turkey hens: egg composition, embryonic growth and hatchling transition

Reproductive maturity of turkey hens: egg composition, embryonic growth and hatchling transition

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