Analysis of Growth and Development Performance of Xinjiang Brown Cattle(Meat Type)
This study aims to analyze the growth and development patterns of Xinjiang brown cattle(meat type).The body weight,body height,body length,chest circumference and cannon circumference of Xinjiang brown cattle at 6,12,18 and 24 months of age in a cattle farm in Ili area were measured,and the growth and development curve analysis,body size index score and correlation analysis were carried out.The results showed that as the age increased,the body height,body length,chest circumference,tube circumference,and weight index of Xinjiang brown cattle(meat type)also gradually increased,and the fastest growth occurred at 6-12 months of age.The body height,body length,chest circumference,and tube circumference increased by 15.08,20.5,25.86,and 2.08 cm,respectively,and the weight gain reached 121.76 kg.The logistic model fitting analysis results indicate that the relative growth of the four individual size indicators reached its highest at 12 months of age.The body length index,body trunk index,chest circumference index,and tube circumference index all increase with age,and the four individual foot indices reach their maximum at 24 months of age.There is a significant positive correlation between body weight and body length(P<0.01,r=0.997),and a significant positive correlation with tube circumference(P<0.05,r=0.987);There is a highly significant positive correlation between body height and body slope length(P<0.01,r=1.00),and a highly significant positive correlation with chest circumference(P<0.01,r=0.995).It can be seen that in the breeding of Xinjiang brown cattle(meat type),12 month old body length and chest circumference should be considered as key body size traits.
Xinjiang brown cattle(meat type)Body size indexCorrelation analysis
NETL
NSTL
万方数据
