Effects of age and diet forms on growth-development patterns, serum metabolism indicators, and parameters of body fat deposition in Cherry Valley ducks.
Effects of age and diet forms on growth-development patterns, serum metabolism indicators, and parameters of body fat deposition in Cherry Valley ducks.
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年龄和饮食形式对生长发展模式，血清代谢指标以及樱桃谷鸭体内脂肪沉积的参数的影响。
DOI：
10.5713/ab.21.0096
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发表时间：
2022-03
影响因子：
2.2
通讯作者：
Zhang K
中科院分区：
文献类型：
--
作者：
Lv G;Zeng Q;Ding X;Bai S;Zhang K
本试验旨在研究日龄和日粮类型对樱桃谷肉鸭生长发育、血清代谢指标和体脂沉积参数的影响。试验选用1日龄SM 3樱桃谷肉鸭150只，按孵化日龄和初重随机分为颗粒型和粉末型两组。每个处理设5个重复，每个重复15只肉鸭.试验共42 d，分为1 ~ 21 d和22 ~ 42 d两个阶段。结果表明，颗粒饲料组各阶段生长性能均显著高于粉末饲料组（p<0.05）。拐点是24天，并没有受到饮食形式的影响。随着日龄的增加（42 vs 21 d），肉鸭的体脂肪重和肝脏脂肪代谢相关酶活性显著增加（p<0.05），血清代谢指标显著改善（p<0.05），肝脏脂肪代谢相关基因mRNA表达水平显著降低（p<0.05）。结果表明，不同日粮（颗粒型和粉末型）均能显著提高肉鸭的生长性能和体脂重，改善血清代谢指标（p<0.05）。此外，日龄和日粮类型对鸭血清代谢指标的影响存在交互作用（p<0.05）。综上所述，粉状饲料降低了肉鸭的生长性能，拐点出现的时间为24日龄。日龄越大或饲喂颗粒饲料的肉鸭脂肪沉积量越高。日龄和饲料形式对体脂沉积的影响可能与血清代谢指标、脂质生成关键酶活性和肝脏基因表达的变化有关。
This study was conducted to investigate the effects of age and diet forms on growth-development patterns, serum metabolism indicators, and parameters of body fat deposition in Cherry Valley ducks. According to the hatching age and initial weight, a total of 150 1-day-old male SM3 Cherry Valley ducks were randomly assigned to two diet forms (pellet vs powder form). Each treatment had with 5 replicates per treatment and 15 meat ducks per replicate. The study lasted 42 d, which was divided into two periods (1 to 21 vs 22 to 42 d). Our results showed that compared with powder group, ducks in pellet group had greater growth performance during different period (p<0.05). The inflection point was 24 d and was not numerically affected by diet forms. Increasing age (42 vs 21 d) significantly increased the weight of body fat and hepatic fat metabolism related enzyme activities in ducks (p<0.05), meanwhile, increasing age (42 vs 21 d) improved serum metabolism indicators and decreased mRNA expression levels of fat metabolism-related genes in liver (p<0.05). Ducks fed different diets (pellet vs powder form) increased growth performance as well as the weight of body fat and improved serum metabolism indicators (p<0.05). In addition, interactions were found between age and diet forms on the levels of serum metabolism indicators in ducks (p<0.05). In conclusion, powder feed reduced growth performance of ducks, and the day of inflection point was 24 days old. Ducks with higher age or fed with pellet diet showed higher fat deposition. The effect of age and feed forms on body fat deposition might result from changes in the contents of serum metabolism indicators, key enzyme activity of lipid production, and hepatic gene expressions.
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影响因子：
4.4
作者：
Sato, K;Akiba, Y
通讯作者：
Akiba, Y
影响因子：
2
作者：
Bochno, R;Brzozowski, W;Murawska, D
通讯作者：
Murawska, D
影响因子：
1.9
作者：
Brake, J. D.;Chamblee, T. N.;Thaxton, J. P.
通讯作者：
Thaxton, J. P.
影响因子：
3.3
作者：
O'Meara, Fiona M.;Gardiner, Gillian E.;Lawlor, Peadar G.
通讯作者：
Lawlor, Peadar G.
影响因子：
3.9
作者：
Salamanca, Aurora;Barcena, Brenda;Gallardo, Nilda
通讯作者：
Gallardo, Nilda