›› 2017, Vol. 29 ›› Issue (10): 1630-1636.DOI: 10.3969/j.issn.1004-1524.2017.10.05

• Animal Science • Previous Articles     Next Articles

Analysis of factors related to weight change of Sunite sheep

LI Qi, LIU Shuang*   

  1. College of Information Engineering, University of Science and Technology of Inner Mongol, Baotou 014000, China
  • Received:2017-03-14 Online:2017-10-20 Published:2017-12-05

Abstract: In order to promote the modernization of animal husbandry and guide herdsmen precision feeding and scientific breeding. the weight change features of the Sunite sheep were studied. The sheep’s body weight, body size data from June 2015 to June 2016 in a Xilinguole Meng East Su Qi herdsman farm were taken as the research object. Firstly, the method of gray correlation analysis was used to find meteorological factor limiting Sunite sheep’s daily weight gain. The rank of meteorological factors affecting the body weight of Sunite sheep was as temperature>wind speed>sunshine>precipitation>visibility>pressure>humidity. Secondly, the correlation analysis, path analysis and correlation coefficient decomposition of sheep’s body weight and size were carried out by SPSS 19.0 software. The results showed that body weight (y) and chest circumference(x3)、body length(x2)、chest depth (x4)、body height (x1) were significantly correlated (P<0.01). The body length (x2) and chest (x3) index had direct and indirect effects on weight (y). The height (x1) and chest depth (x4) were assisting other traits to influence body weight (y) indirectly.

Key words: Sunite sheep, grey relational analysis, body weight, body size, correlation analysis, path analysis

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