›› 2019, Vol. 46 ›› Issue (4): 1002-1010.doi: 10.16431/j.cnki.1671-7236.2019.04.006

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Analysis on Fattening Performance and Meat Quality of Hybridize First Sheep from Different Meat Sheep Parents in Large-scale Sheep Farms

HAN Zhanqiang1, WANG Qiuxia2   

  1. 1. Henan Vocational College of Agriculture, Zhengzhou 451450, China;
    2. Henan Institute of Science and Technology, Xinxiang 453003, China
  • Received:2018-08-13 Online:2019-04-20 Published:2019-04-22

Abstract:

This study was aimed to understand the fattening performance and meat quality of hybridize first sheep from Sa×Du×Hu (a generation of Suffolk rams and Hu ewes).The lambs from different source were divided into three groups on average at random according to the body weight and age,nine 3-month-old hybrids first lambs of Dorper and Hu sheep (Du×Hu F1),nine 3-month-old hybrids first lambs of Suffolk and Hu sheep (Sa×Hu F1),nine 3-month-old hybrids first lambs of Suffolk and crossbred ewes F1 from Dorper and Hu sheep (Sa×Du×Hu F1) were selected to perform trial,and nine 3-month-old Hu sheep were selected as control.3 repetitions per group,3 sheep per repetition.After 10 days preliminary trial,all lambs were fed according to the nutritional requirements recommended by the national mutton sheep raising standard NY T/816-2004 in the next 50 days.The results showed that the average daily weight gain and economic benefit of Sa×Du×Hu F1 were extremely significantly higher than that of Sa×Hu F1,Du×Hu F1 and Hu sheep (P<0.01),the F/G of Sa×Du×Hu F1 were extremely significantly lower than that of Sa×Hu F1,Du×Hu F1 and Hu sheep (P<0.01),compared with Sa×Hu F1,Du×Hu F1 and Hu sheep,the average daily gain of Sa×Du×Hu F1 was increased by 20.89%,30.62% and 47.46%,the F/G of Sa×Du×Hu F1 was decreased by 21.76%,18.11% and 28.72%,respectively.The net meat ratio,meat-bone ratio and loin eye muscle area of Sa×Du×Hu F1 were extremely significantly higher than Sa×Hu F1,Du×Hu F1 and Hu sheep (P<0.01),compared with Sa×Hu F1,Du×Hu F1 and Hu sheep,the net meat ratio,meat-bone ratio and loin eye muscle area of Sa×Du×Hu F1 were increased by 2.94%,2.79%,3.92%,27.94%,6.76%,24.90% and 24.79%,24.55%,49.46%,respectively.The meat quality of Sa×Du×Hu F1 was better than Sa×Hu F1,Du×Hu F1 and Hu sheep.Furthermore,the performance of Sa×Du×Hu F1 was more prominent in nutritional value.In conclusion,the performance of Sa×Du×Hu F1 was outstanding in growth rate,feed conversion rate and economic efficiency,and was also of mutton quality and nutritional value,and the ternary crossbreeding with the Suffolk rams and Du×Hu F1 ewes was worthy of generalizing and utilizing.

Key words: large-scale sheep farms; mutton sheep; first-filial generation; fatten; meat quality

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