Effects of dietary crude protein on growth performance, nutrient utilization, immunity index and protease activity in weaner to 2 month-old New Zealand Rabbits

文献类型： 外文期刊

第一作者： Lei, QX

作者： Lei, QX;Li, FC;Jiao, HC

作者机构：

关键词： New Zealand rabbit;crude protein;growth;immunity index;protease activities

期刊名称：ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES （ 影响因子：2.509； 五年影响因子：2.604 ）

ISSN： 1011-2367

年卷期： 2004 年 17 卷 10 期

页码：

收录情况： SCI

摘要： An experiment was conducted to determine the effects of different dietary crude protein (CP) levels on growth performance, nutrient utilization, small intestine protease activity and immunity index of weaner to 2 month-old New Zealand rabbits. Eighty weaner rabbits were allocated in individual cages to five treatments in which they were fed diets with CP at 14%, 16%, 18%, 20% and 22%, respectively. The growth performance and nutrient digestibility of rabbits increased firstly when dietary CP increased, then decreased. The average daily gain was the highest and feed conversion rate was the lowest when dietary CP reached 20%, namely 34.9 g/d and 2.74:1, respectively. Maximum CP digestibility was 72.1% in the 18% CP group, maximum crude fiber digestibility of 28.4% occurred in the 16% CP group and was significantly different from other treatments (p<0.01), apparent digestibility of Lys and Val followed the same trend as CP digestibility, and reached their maximum when dietary CP was 18%. Apparent digestibility of Cys, Tyr, Leu and Thr also had a similar trend to CP digestibility. Nitrogen retention (RN) increased with CP level (p>0.05), and was highest for 20% CP treatment (1.5 g/d). The effect of CP level on the rate of digestible nitrogen (DN) converted RN was small. The spleen index, thymus index, chymotrypsin and trypsin activities in small intestine were highest when dietary CP was 16%, which were 1.0, 2.8, 15.7 U/g and 125.7 U/g, respectively. There was no significant difference among treatments (p>0.05). According to the above results, the appropriate dietary CP level from weaner to 2 month-old meat rabbits was 18-20%.

分类号：

  • 相关文献

[1]Near-Infrared Reflectance Spectroscopy Analytic Models Established for the Crude Protein and Crude Fiber of Alfalfa Property. Zhang Yue-xue,Li Yan,Hao Ruo-chao,Tang Feng-lan,Han Wei-bo,Liu Jie-lin,Shang Chen. 2009

[2]The feeding quality of rice (Oryza sativa L.) straw at different cutting heights and the related stem morphological traits. Dong, Chen Fei,Ding, Cheng Long,Xu, Neng Xiang,Cheng, Yun Hui,Gu, Hong Ru,Shen, Yi Xin.

[3]Effect of storing total mixed rations anaerobically in bales on feed quality. Wang, J.,Wang, J. Q.,Bu, D. P.,Guo, W. J.,Song, Z. T.,Zhang, J. Y.,Wang, J..

[4]Influence of Lighting Schedule and Nutrient Density in Broiler Chickens: Effect on Growth Performance, Carcass Traits and Meat Quality. Li, Wen-bin,Guo, Yan-ti,Wang, Rong,He, Yao,Su, Dong-ge,Chen, Ji-lan.

[5]Threonine supplementation reduces dietary protein and improves lipid metabolism in Pekin ducks. Jiang, Y.,Tang, J.,Xie, M.,Hou, S. S.,Jiang, Y.,Tang, J.,Qiao, S. Y.,Wen, Z. G..

[6]Effects of gibberellic acid application after anthesis on the feeding value of double-purpose rice (Oryza sativa L.) straw at harvest. Liu, NanQing,Qu, Hui,Shen, Yi Xin,Dong, Chen Fei,Gu, Hong Ru,Ding, Cheng Long,Xu, Neng Xiang.

[7]Near-infrared spectroscopy combined with equidistant combination partial least squares applied to multi-index analysis of corn. Lyu, Ning,Chen, Jiemei,Pan, Tao,Yao, Lijun,Han, Yun,Yu, Jing,Han, Yun,Yu, Jing. 2016

[8]Effect of Dietary Crude Protein and Energy on Gaoyou Ducklings Growth Performance and Carcass Trait. Wang, Q.,Li, H. F.,Dai, Y. L.,Chen, K. W.,Li, B. L.,Wang, Z. Y.,Zhang, J.. 2010

[9]Nutrient and Poisonous Composition in the Mixed Silage of Maize and Astragalus adsurgens Pall. with Varied Proportions. Feng, Peng,Sun, Qi-Zhong,Feng, Peng,Zheng, Hai-Yan,Ye, Sheng-Xing,Yu, Zhu,Xue, Jian-Guo. 2012

[10]The Effect of Wheat Mixtures on the Powdery Mildew Disease and Some Yield Components. Jia Shao-feng,Wang Xiu-na,Duan Xia-yu,Zhou Yi-lin,Jia Shao-feng,Wang Zong-hua,Lu Guo-dong. 2012

[11]Supplemental Dietary Methionine Affects the Pelt Quality and Nutrient Metabolism of Raccoon Dogs (Nyctereutes procyonoides). Liu, H.,Li, G.,Zhong, W.,Li, D.,Liu, F.,Sun, W.. 2012

[12]Identification of genetic loci associated with crude protein and mineral concentrations in alfalfa (Medicago sativa) using association mapping. Jia, Congjun,Chen, Min,Liu, Xiqiang,Gong, Pan,Wang, Xuemin,Gao, Hongwen,Wang, Zan,Wu, Xinming,Wang, Yunqi,Xu, Qingfang. 2017

[13]Demographic analysis based on the growth parameter of sharks. Chen, PM,Yuan, WW.

[14]The strategy of Na+ compartmentation and growth of Atriplex centralasiatica in adaptation to saline environments. Qiu, N.,Wang, Y.,Peng, X.,Qiu, N.,Zhou, F.,Hua, C.. 2014

[15]Expression of Insulin-Like Growth Factor System Genes in Liver Tissue During Embryonic and Early Post-Hatch Development in Duck (Anas platyrhynchos Domestica). Zou Jianmin,Shu Jingting,Shan Yanju,Hu Yan,Song Chi,Zhu Wenqi. 2014

[16]Characterization of 47 Cys(2)-His(2) zinc finger proteins required for the development and pathogenicity of the rice blast fungus Magnaporthe oryzae. Cao, Huijuan,Huang, Pengyun,Zhang, Lilin,Shi, Yongkai,Sun, Dandan,Yan, Yuxin,Lu, Jianping,Cao, Huijuan,Liu, Xiaohong,Lin, Fucheng,Dong, Bo,Chen, Guoqing,Snyder, John Hugh.

[17]Dietary copper supplementation improves pelt characteristics of female silver fox (Vulpes fulva) during the winter fur-growing season. Zhong, Wei,Liu, Hanlu,Luo, Guoliang,Chang, Zhongjuan,Liu, Fenghua,Zhao, Jingbo,Li, Danli,Yue, Zhigang,Zhang, Haihua,Li, Guangyu.

[18]Growth, Serum Biochemical Indices, Antioxidant Status and Meat Quality of Broiler Chickens Fed Diet Supplemented with Sodium Stearoyl-2 Lactylate. Ali, Siyal Farman,Wang Chao,Wan Xiaoli,He Jintian,Zhang Lili,Zhong Xiang,Wang Tian,Wang Mingfa,Abd El-Hack, Mohamed Ezzat.

[19]Comparison between transgenic maize with exotic betaine aldehyde dehydrogenase (BADH) gene and its untransformed counterpart. Yang, Liyan,Liu, Xiaolu,Guo, Xiaoyang,Sun, Yi,Hao, Yaoshan,Sun, Yi.

[20]Effects of dietary nucleotides on growth, physiological parameters and antioxidant responses of Juvenile Yellow Catfish Pelteobagrus fulvidraco. Zhao, Hongxia,Cao, Junming,Huang, Yanhua,Zhou, Chuanpeng,Wang, Guoxia,Mo, Wenyan,Chen, Xiaoying.

作者其他论文 更多>>

微信小程序