Estimation of dietary tryptophan requirement for laying duck breeders: effects on productive and reproductive performance, egg quality, reproductive organ and ovarian follicle development and serum biochemical indices

This study aimed to determine the dietary tryptophan (Trp) requirement for laying duck breeders. A total of 504 Longyan duck breeders (body weight: 1.20 ± 0.02 kg) aged 22 wk were randomly allocated to 6 treatments, each with 6 replicates of 14 ducks. During the next 16 wk, birds were fed the basal...

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Vydáno v:Poult Sci
Hlavní autoři: Zhang, Y.N., Ruan, D., Wang, S., Huang, X.B., Li, K.C., Chen, W., Xia, W.G., Wang, S.L., Zheng, C.T.
Médium: Artigo
Jazyk:Inglês
Vydáno: Elsevier 2021
Témata:
METABOLISM AND NUTRITION
On-line přístup:https://ncbi.nlm.nih.gov/pmc/articles/PMC8242034/
https://ncbi.nlm.nih.gov/pubmed/34174564
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.psj.2021.101145
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