萨福克羔羊0~65日龄生长发育规律研究

doi:10.16431/j.cnki.1671-7236.2017.06.019

Abstract

Abstract:

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.

Key words: Suffolk lambs; body size; body weight; correlation coefficient

CLC Number:

S826.9⁺2

HE Jun-min, ZANG Chang-jiang, HUANG Xi-xia, ZHAO Bing-ru, ZHOU Jing-hang, Rexiti·Abudureyimu. Study on Growth and Development Regularity of Suffolk Lambs at 0-65 Days of Age[J]. , 2017, 44(6): 1707-1713.

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Study on Growth and Development Regularity of Suffolk Lambs at 0-65 Days of Age

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