Sulaiman Usman, Vaughan Reagan, Siegel Paul, Liu Dongmin, Gilbert Elizabeth, Cline Mark
School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
Department of Human Nutrition, Foods and Exercise, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA.
Animals (Basel). 2024 Dec 10;14(24):3563. doi: 10.3390/ani14243563.
Optimization of growth performance and fat metabolism in broilers are critical for meat quality and overall production efficiency. This experiment investigated the effects of dietary baicalein supplementation and embryonic heat conditioning (EHC) on the growth performance and adipose tissue metabolism of 10-day old broilers. Fertile eggs were divided into control and EHC groups, with EHC eggs exposed to intermittent heating (39.5 °C) from day 7 to day 16 of incubation. Hatched chicks were further divided into four groups: CC (control control), CT (control treatment with baicalein), EC (embryonic heat control), and ET (embryonic heat treatment with baicalein), and were fed ad libitum. On day 10 post-hatch, blood and adipose tissue samples were collected for analysis. mRNA was lower in the ET group compared to the EC group and higher in the CT group compared to the CC group. and mRNAs were elevated in both the ET and CT groups relative to their controls. Additionally, plasma non-esterified fatty acid (NEFA) levels were significantly higher in the CT group compared to the CC group. These results indicate that baicalein supplementation, particularly when combined with embryonic heat conditioning, can modulate fat metabolism and potentially improve the growth performance of broilers, thereby offering insights into strategies for enhancing poultry production.
优化肉鸡的生长性能和脂肪代谢对于肉质和整体生产效率至关重要。本实验研究了日粮添加黄芩苷和胚胎热调节（EHC）对10日龄肉鸡生长性能和脂肪组织代谢的影响。将受精蛋分为对照组和EHC组，EHC组的蛋在孵化第7天至第16天接受间歇加热（39.5°C）。孵化出的雏鸡进一步分为四组：CC（对照对照组）、CT（对照+黄芩苷处理组）、EC（胚胎热调节对照组）和ET（胚胎热调节+黄芩苷处理组），并自由采食。在孵化后第10天，采集血液和脂肪组织样本进行分析。与EC组相比，ET组的mRNA水平较低；与CC组相比，CT组的mRNA水平较高。相对于各自的对照组，ET组和CT组的 和mRNA水平均升高。此外，与CC组相比，CT组的血浆非酯化脂肪酸（NEFA）水平显著更高。这些结果表明，添加黄芩苷，特别是与胚胎热调节相结合时，可以调节脂肪代谢并可能改善肉鸡的生长性能，从而为提高家禽生产的策略提供见解。
