您好，欢迎访问广东省农业科学院 机构知识库！
广东省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Evaluation of dietary calcium requirements for laying Longyan shelducks

文献类型： 外文期刊

作者： Xia, W. G. 1 ; Zhang, H. X. 1 ; Lin, Y. C. 1 ; Zheng, C. T. 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Inst Anim Sci,Guangdong Key Lab Anim Breeding & N, Key Lab Anim Nutr & Feed Sci South China,Guangdon, Minist Agr,State Key Lab Livestock & Poultry Bree, Guangzhou 510640, Guangdong, Peoples R China

关键词： calcium;laying duck;productive performance;eggshell quality;tibial quality

期刊名称：POULTRY SCIENCE （ 影响因子：3.352； 五年影响因子：3.679 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： To establish the dietary Ca requirements for laying ducks during their peak laying period, 5 Ca levels (2.8, 3.2, 3.6, 4.0, and 4.4%) were used, and laying performance, eggshell quality, serum variables, and bone quality were examined. A total of 1,620 Longyan shelducks with similar BW at 20 wk of age were fed for 13 wk in 5 treatment groups, each with 4 replicates of 81 birds. Dietary Ca increased egg production and egg mass (linear, P < 0.01) and reduced the feed conversion ratio (FCR), but egg weight was not affected. Dietary Ca level did not affect eggshell properties or any reproductive organ index except for shell weight (highest with the 4.0% Ca diet, P < 0.05). Serum concentrations of Ca and calcitonin increased with dietary Ca level (linear, P < 0.01), and a quadratic response (P < 0.01) was seen in alkaline phosphatase activity; the highest values were in ducks fed the 3.6% Ca diet. Tibial fresh weight was affected by dietary Ca (linear and quadratic, P < 0.05) with tibiae from the 2.8% Ca ducks weighing less than those from ducks fed any other Ca level. Other tibial measurements were unaffected by dietary Ca. According to the regression model, the Ca levels required for laying Longyan shelducks during their peak laying period are 3.4 and 3.2% for maximal serum alkaline phosphatase activity and tibial fresh weight, respectively. The results showed that diets containing 3.2 to 3.6% Ca provide for superior productive performance and bone quality in laying Longyan shelducks during their peak laying period.

  • 相关文献

[1]Influence of particle size and calcium source on production performance, egg quality, and bone parameters in laying ducks. Wang, S.,Chen, W.,Zhang, H. X.,Ruan, D.,Lin, Y. C..

[2]Heat stress impairs the nutritional metabolism and reduces the productivity of egg-laying ducks. Ma, Xianyong,Lin, Yingcai,Zhang, Hanxing,Chen, Wei,Wang, Shang,Ruan, Dong,Jiang, Zongyong,Ma, Xianyong,Lin, Yingcai,Zhang, Hanxing,Chen, Wei,Wang, Shang,Ruan, Dong,Jiang, Zongyong,Ma, Xianyong,Lin, Yingcai,Zhang, Hanxing,Chen, Wei,Wang, Shang,Ruan, Dong,Jiang, Zongyong. 2014

[3]Estimation of dietary selenium requirement for Chinese egg-laying ducks. Chen, W.,Zhang, H. X.,Wang, S.,Ruan, D.,Xie, X. Z.,Yu, D. Q.,Lin, Y. C.,Chen, W.,Zhang, H. X.,Wang, S.,Ruan, D.,Xie, X. Z.,Yu, D. Q.,Lin, Y. C..

[4]Estimation of dietary arginine requirements for Longyan laying ducks. Xia, Weiguang,Fouad, Ahmed Mohamed,Chen, Wei,Ruan, Dong,Wang, Shuang,Fan, Qiuli,Wang, Ying,Cui, Yiyan,Zheng, Chuntian,Fouad, Ahmed Mohamed.

[5]Estimation of L-threonine requirements for Longyan laying ducks. Fouad, A. M.,Zhang, H. X.,Chen, W.,Xia, W. G.,Ruan, D.,Wang, S.,Zheng, C. T.,Fouad, A. M..

[6]Calcium-dependent electroactive biofilm structure and electricity generation in bioelectrochemical systems. Liu, Ting,Cai, Xixi,Yuan, Yong,Zhou, Shungui,Liu, Ting,Rao, Liqun,Ding, Guochun. 2015

[7]Dietary calcium deficiency in laying ducks impairs eggshell quality by suppressing shell biomineralization. Chen, Wei,Zhao, Fei,Tian, Zhi Mei,Zhang, Han Xing,Ruan, Dong,Li, Yan,Wang, Shuang,Zheng, Chun Tian,Lin, Ying Cai,Chen, Wei,Zhao, Fei,Tian, Zhi Mei,Zhang, Han Xing,Ruan, Dong,Li, Yan,Wang, Shuang,Zheng, Chun Tian,Lin, Ying Cai,Chen, Wei,Zhao, Fei,Tian, Zhi Mei,Zhang, Han Xing,Ruan, Dong,Li, Yan,Wang, Shuang,Zheng, Chun Tian,Lin, Ying Cai,Chen, Wei,Zhao, Fei,Tian, Zhi Mei,Zhang, Han Xing,Ruan, Dong,Li, Yan,Wang, Shuang,Zheng, Chun Tian,Lin, Ying Cai,Chen, Wei,Zhao, Fei,Tian, Zhi Mei,Zhang, Han Xing,Ruan, Dong,Li, Yan,Wang, Shuang,Zheng, Chun Tian,Lin, Ying Cai.

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广东省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台