摘要
试验对萨福克羔羊0～65日龄生长发育规律进行了分析,旨在完善肉羊的生长发育规律研究,为萨福克羔羊0～65日龄的饲养管理及营养水平提供理论依据。试验于新疆华兴牧场惠康畜牧种羊繁育基地进行,供体母羊为纯种萨福克羊,受体母羊为哈萨克羊,并对出生的萨福克羔羊进行体尺、体重测量和记录,将数据输入Excel表格进行整理,并通过SPSS 16.0软件分析各性状平均值和各个体尺指标与体重平均值的相关性。结果表明,0～30日龄萨福克羊生长发育速度相对较快,公羔臀宽与体重的相关系数为0.989;管围与体重的相关系数为0.638;母羔臀宽与体重的相关系数为0.981,管围与体重的相关系数为0.654。0～30日龄萨福克羊公羔各性状的生长发育比母羔快,45～65日龄生长速度一致。羔羊0～15日龄体高、体长、胸围和体重等生长速度最快,而30～65日龄体高、体长、体重等部位生长速度较平稳;由体尺、体重相关性分析可知,臀宽与体重相关系数最大,管围和体重相关系数最小。由研究可知,0～30日龄营养要求关键,公羔与母羔的生长发育无明显差异,欲提高羔羊的生长发育速度则要注意羔羊各年龄阶段的生长发育规律,合理提供营养并提高饲料质量与管理水平。今后对萨福克羔羊的饲料管理中应该注重不同时期的饲养配方,合理改善饲养环境,使其发挥最大生长潜能。
In this paper, the growth and development regularity of Suffolk lambs from 0 to 65 days of age were analyzed to improve the growth and development of meat sheep, and provide the theory of feeding and management of Suffolk lambs from 0 to 65 days of age. The experiment was carried out in Xinjiang Huaxing pasture breeding base, the donor ewes were purebred Suffolk sheep, the recipient ewes were Kazak sheep, and the body size indexes and body weight of the born Suffolk lambs were measured and recorded, the correlation of the average of each trait and the average weight were analyzed by SPSS 16.0 software. The results showed that the growth and development of characters were relatively fast at 30 days of age. The correlation coefficient between width and body weight of male lamb was 0.989, and the correlation coefficient between tube circumference and body weight was 0.638. The correlation coefficient between width and body weight of female lambs was 0.981, the correlation coefficient between tube circumference and body weight was 0.654. Suffolk lambs from the birth to 30 of age, the growth and development of male lambs were quicker than female lambs, and had the same growth rate from 45 to 65 days of age. Lambs grew from birth to 15 days of age, body length, chest circumference and body weight growth rate from the 30 to 65 days of age, body length, body weight and other parts of the growth rate was more stable;By analyzing the body size and body weight, the correlation coefficient between hip width and body weight was the largest, and the correlation coefficient between tube circumference and body weight was the smallest. The results showed that there was no difference in the growth and development of male and female lambs. To improve the growth and development of lambs, we should pay attention to the growth and development of lambs at all ages, and provide a reasonable basis for lambs, and improve feed quality and management level. In the future, the feed management of Suffolk lambs should focus on the feeding formula at different times and improve the breeding environment reasonably to maximize the growth potential.
出处
《中国畜牧兽医》
CAS
北大核心
2017年第6期1707-1713,共7页
China Animal Husbandry & Veterinary Medicine
基金
国家自然科学基金(31360543
31460593)
农业部体系项目(CARS-40)
新疆农业大学产学研联合培养研究生示范基地项目(xjaucxy-yjs-20152011)
关键词
萨福克羔羊
体尺
体重
相关系数
Suffolk Iambs
body size
body weight
correlation coefficient
