| The study on the substantial characters of germplasm of Yufeng yellow rabbit can be supplied for Yufeng yellow rabbits' purified rejuvenation,effective protection,rational and efficient exploitation and utilization.The healthy Yufeng yellow rabbits,New Zealand rabbits and Habai rabbits similar in age and weight were randomly divided into three groups,and were feed in the experiment rabbit farm of Henan academy of agricultural sciences.The slaughter experiments,characters of meat were analyzed in Institute of Animal Husbandry and Veterinary and experimental Center of Henan Academy of Agricultural Sciences.The biochemical indicators were determined in the fifth People's Hospital of Zhengzhou.The results are as follows:(1)In each group,the proportion of male to female(1:5)was not significant(P> 0.05). The age of first match for the male is similar(6～7.5 months),the difference was not significant(P> 0.05).The age of first match for the female rabbits is similar(5～6.5 months),the difference was not significant(P> 0.05).Early pregnancy rate with no significant difference(P> 0.05),but Yufeng yellow rabbit was the lowest in early pregnancy rate,6.67%lower than New Zealand rabbits,and 4.53%lower than Habai rabbit.The difference of litter size between Yufeng yellow rabbit and New Zealand group was significant(0.01 0.05).(2)The difference of birth weight between Yufeng yellow rabbit and New Zealand rabbit group was not significant(P> 0.05),while the difference was significant(0.01 0.05).The same result was for Yufeng yellow rabbit at the age of 60 or 90days.The average daily weight of Yufeng yellow rabbit Group at age of 31-60days or 61-90days was not significantly different from that of the New Zealand rabbit group and Habai rabbit group(P> 0.05). The slaughter rate of 90-day-old between Yufeng yellow rabbit Group and New Zealand rabbit group was significantly different(0.01 0.05).The daily weight gain of 31 -60 days was higher than 60- 90 days in all the groups. In Yufeng yellow rabbit Group and the New Zealand rabbit group,the daily weight gain of 31-60 days was higher than that of 61-90 days(P <0.01),but in the Habai rabbit group, the difference is not significant(P>0.05).(3)Each of the crude protein,crude fat and PH value in the meat of Yufeng yellow rabbit Group at 90days was not significantly different(P> 0.05)from that of the New Zealand rabbit group or Habai rabbit group,but the fat content of the Yufeng yellow rabbit group is highest.The content of necessary amino acids in the meat in all the groups such as lysine,methionine,threonine,leucine,isoleucine,phenylalanine,valine,histidine, were not significantly different(P> 0.05).(4)The biochemical indicators at 90days:the difference of hemoglobin between Yufeng yellow rabbit group and New Zealand group was significant(0.01 0.05).For the content of erythrocyte,leukocyte and platelet,the ratio of eosinophil,basophile tablets cell,neutrophils and monocytes,the differences were not significant in each group (P> 0.05).The results indicates that Yufeng yellow rabbit can be used for raising as a meat and leathery breed.
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