›› 2018, Vol. 45 ›› Issue (6): 1535-1542.doi: 10.16431/j.cnki.1671-7236.2018.06.014

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Analysis on Growth Regulation of Angus Cattle in a Angus Ranch of Tianshan in Xinjiang

ZHU Bingshan1, ZHANG Xiaoxue2, WEI Chen2, WANG Dan2, MAI Dan1, LIU Yuanyuan1, BAI Jianwen2, LI Hongyan1, HUANG Xixia2, TAN Shixin1   

  1. 1. Xinjiang Tianshan Animal Husbandry Bio-Engineering Co., Ltd., Changji 831100, China;
    2. College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2017-10-27 Online:2018-06-20 Published:2018-06-15

Abstract:

To study the correlation relationship between body size indexes and body weight of Angus cattle and explore the growth regulation,649 growth development records were collected of Angus cattle born from 2012 to 2016 of a Angus ranch in Tianshan of Xinjiang,including body size indexes and body weight records.The SPSS 16.0 software was used to measure correlation relationship between body size indexes and body weight.The results showed that the body size indexes and body weight of Angus cattle gradually increased with the increase of age;The growth rate of each body size indexes was fast before 14 months of age,and then slow down;The growth rate of abdominal circumference and chest circumference were higher than other indexes.The average body length index,body index,chest circumference index and abdominal circumference index of Angus bull were 111.99%,129.79%,145.26% and 16.71%,respectively;And that of Angus cow were 112.15%,132.01%,147.86% and 16.95%,respectively.The correlation relationship between body weight and body height,body length,chest circumference,abdominal circumference and tube circumference were all extremely significant (P<0.01),and there was an extremely significant positive correlation between each two of body size indexes (P<0.01).The correlation coefficient between chest circumference and abdominal circumference was highest,which were 0.948 and 0.939 of Angus bull and cow,respectively.And the correlation coefficient between the abdominal circumference and tube circumference was the lowest which were 0.797 and 0.851 of Angus bull and cow.The results of study could provide data to clear the direction genetic breeding,develop and utilize of germplasm resources of Angus cattle.

Key words: Angus cattle; growth and development regulation; body size indexes; body weight

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