In Ovo Feeding of Arginine, Leucine, and Methionine in Broiler Breeders’ Eggs During Summer: Effects on Hatchability and Chick Oxidation, Inflammation, and Apoptosis
文献类型: 外文期刊
作者: Huan Ge;Zhenwu Huang;Jinghai Feng;Minhong Zhang
作者机构:
关键词: arginine;broiler chicken;growth and development;in ovo feeding;late laying period;leucine;methionine;oxidation–inflammation–apoptosis;summer
期刊名称: Animals
ISSN: 2076-2615
年卷期: 2025 年 15 卷 13 期
页码:
收录情况: SCIE(2025版)
摘要: Summer high temperatures (27–38 °C, more than 7 days) readily induce heat stress in late-laying broiler breeders, which impedes offspring growth and development. This study aimed to provide a scientific basis for improving the offspring development of late-laying broiler breeders during summer. Six hundred fertilized eggs from 50-week-old LiFeng broiler breeders were divided into five treatment groups (non-injected, NaCl-injected, 6 mg/egg L-arginine-injected, 3.5 mg/egg L-methionine-injected, 8.4 mg/egg L-leucine-injected), with six replicates per group and 20 eggs per replicate. Embryos were incubated for 21 days and chicks raised for 21 days post-hatch. Methionine injection significantly enhanced hatchability (+5.8%), increased daily chick weight gain (+8.8%), reduced serum urea nitrogen (−53.13%), decreased inflammatory cytokine levels, elevated antioxidant enzyme activities, lowered malondialdehyde content (−47.99%), and suppressed expression of inflammatory and apoptotic pathway genes. The comprehensive effect of methionine was the best among the three amino acids when injected into chicken embryos. Methionine promoted protein synthesis, enhanced antioxidant and anti-inflammatory capacities, and consequently improved chick growth performance.
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