当前位置: X-MOL 学术J. Agric. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of nutrition plane on meat quail kept in thermoneutral environment: performance and carcass characteristics
The Journal of Agricultural Science ( IF 1.7 ) Pub Date : 2020-04-02 , DOI: 10.1017/s0021859620000167
Edilson Paes Saraiva , José Humberto Vilar da Silva , Fernando Guilherme Perazzo Costa , Nátali Rodrigues dos Santos , Vinícius de França Carvalho Fonsêca , Severino Guilherme Caetano Gonçalves dos Santos , Danilo Teixeira Cavalcante , Tamires da Silva Magalhães , José Danrley Cavalcante dos Santos

The objective of this work was to evaluate the effect of protein reduction, with or without the supplementation of limiting amino acids, on the performance and carcass characteristics of meat quails from 22 to 42 days of age in a thermoneutral environment. A total of 324 European quails were randomly allocated into nine diets. The diets were formulated based on the recommended requirement (control) and were differentiated according to crude protein (CP) reduction levels into moderate reduction (10%) and severe reduction (20%). The diets were supplemented or not with limiting amino acids. The diets with severe and moderate protein reduction meeting the methionine + cystine, lysine and threonine requirements led to weight gain equivalent to that of the control quails. The diet with a moderate reduction in CP, with or without meeting the methionine + cystine requirement or meeting the methionine + cystine and lysine requirement, led to the greatest carcass yield and a greater leg weight and were similar to the control treatment. It is observed that supplementation with the crystalline sources of the amino acids is able to improve the performance of the quails, in addition, the attendance of methionine + cystine requirement important factor when the CP levels are reduced. In our studies, diets with 17.5% CP and supplemented with methionine + cystine, lysine and threonine meet the requirements of quails, thus generating a limiting amino acid requirement, so they are recommended for meat quails from 22 to 42 days old housed in thermoneutral environment.

中文翻译:

营养平面对热中性环境下肉鹌鹑的影响:性能和胴体特性

这项工作的目的是评估蛋白质减少对 22 至 42 日龄肉鹌鹑在热中性环境中的性能和胴体特征的影响,无论是否补充限制性氨基酸。共有 324 只欧洲鹌鹑被随机分配到 9 种饮食中。日粮根据推荐要求(对照)配制,并根据粗蛋白(CP)减少水平分为中度减少(10%)和重度减少(20%)。饮食补充或不补充限制性氨基酸。满足蛋氨酸 + 胱氨酸、赖氨酸和苏氨酸需求的重度和中度蛋白质减少的饮食导致与对照鹌鹑相当的体重增加。CP适度降低的饮食,无论是否满足蛋氨酸 + 胱氨酸需求或满足蛋氨酸 + 胱氨酸和赖氨酸需求,都会导致最大的胴体产量和更大的腿重,并且与对照处理相似。观察到补充氨基酸的结晶来源能够提高鹌鹑的性能,此外,当CP水平降低时,蛋氨酸+胱氨酸需求的出现是重要因素。在我们的研究中,含有 17.5% CP 并补充蛋氨酸 + 胱氨酸、赖氨酸和苏氨酸的日粮满足鹌鹑的需求,因此产生了有限的氨基酸需求,因此建议饲养在热中性环境中的 22 至 42 天龄的肉鹌鹑。 . 导致最大的胴体产量和更大的腿重,并且与对照处理相似。观察到补充氨基酸的结晶来源能够提高鹌鹑的性能,此外,当CP水平降低时,蛋氨酸+胱氨酸需求的出现是重要因素。在我们的研究中,含有 17.5% CP 并补充蛋氨酸 + 胱氨酸、赖氨酸和苏氨酸的日粮满足鹌鹑的需求,因此产生了有限的氨基酸需求,因此建议饲养在热中性环境中的 22 至 42 天龄的肉鹌鹑。 . 导致最大的胴体产量和更大的腿重,并且与对照处理相似。观察到补充氨基酸的结晶来源能够提高鹌鹑的性能,此外,当CP水平降低时,蛋氨酸+胱氨酸需求的出现是重要因素。在我们的研究中,含有 17.5% CP 并补充蛋氨酸 + 胱氨酸、赖氨酸和苏氨酸的日粮满足鹌鹑的需求,因此产生了有限的氨基酸需求,因此建议饲养在热中性环境中的 22 至 42 天龄的肉鹌鹑。 . CP水平降低时蛋氨酸+胱氨酸需求的重要影响因素。在我们的研究中,含有 17.5% CP 并补充蛋氨酸 + 胱氨酸、赖氨酸和苏氨酸的日粮满足鹌鹑的需求,因此产生了有限的氨基酸需求,因此建议饲养在热中性环境中的 22 至 42 天龄的肉鹌鹑。 . CP水平降低时蛋氨酸+胱氨酸需求的重要影响因素。在我们的研究中,含有 17.5% CP 并补充蛋氨酸 + 胱氨酸、赖氨酸和苏氨酸的日粮满足鹌鹑的需求,因此产生了有限的氨基酸需求,因此建议饲养在热中性环境中的 22 至 42 天龄的肉鹌鹑。 .
更新日期:2020-04-02
down
wechat
bug