Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (26): 107-111.doi: 10.11924/j.issn.1000-6850.casb16080085

Special Issue: 畜牧兽医

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Growth and Development Regulation of Shaanbei White Cashmere Goat

毕台飞,朱海鲸,于鸿浩 and 屈雷   

  • Received:2016-08-19 Revised:2016-11-07 Accepted:2016-11-23 Online:2017-09-19 Published:2017-09-19

Abstract: The purpose of this study was to reveal the regulation of growth and development in Shanbei white cashmere goats, and provide reference for variety selection and breeding management. 16 males and 23 females, similar birth date were selected to measure weight and body measurement index. The results showed as follows:(1)the weight and body measurement index cumulative growth of the Shanbei White Cashmere Goats increased with ages. (2)Absolute weight gain and relative weight gain were the highest within 1 months of age, two indexes declined minimum value during 3 months of age. Then two peak of absolute weight gain appeared in 5 months of age and 8 months of age, however, relative weight gain showed stable change trend. (3)Absolute growth rate of body height of rams was the highest in 8 months of age, and absolute growth rate of body height of ewes was the highest in 9 months of age. Relative growth rate of body height of rams and ewes were the highest in 8 months of age and 9 months of age, respectively. Absolute growth rate of body length was the highest in 9 months of age, and relative growth rate of body length was the highest in 4 months of age. Absolute growth rate and relative growth rate of chest girth were the highest in 5 months of age. Absolute growth rate and relative growth rate of cannon circumference were the highest in 12 months of age. [Conclusion]In conclusion, weight gain rate of the Shanbei White Cashmere Goats was fast within 1 months of age, 4~5 months of age and 7~8 months of age. And growth speed of body measurement index was fast in 4~5 months of age and 7~9 months of age. So enough nutrition should be provided at these ages in order to meeting the nutritional needs of growth and development in Shanbei White Cashmere Goats.