The effect of adding antarctic krill powder to the diet on the growth performance,antioxidant capacity,and meat quality of fattening wulian black pigs
The aim of this study is to investigate the effects of adding different levels of Antarctic krill powder to the diet on the growth performance,antioxidant capacity,and meat quality of fattening Wulian black pigs.Select 120 Wulian black pigs with a weight of about 62kg at 5 months old and divide them into 4 groups,with 3 replicates in each group and 10 pigs in each replicate.The control group was fed with full price feed,and three experimental groups(Ⅰ,Ⅱ,Ⅲ)added 1%,3%,and 5%Antarctic krill powder to the full price feed to make experimental feed.The trial period was 58 days.The results showed that:(1)there was no significant difference in the average daily feed intake among the four groups(P＞0.05).The final weight and average daily weight gain of groups Ⅱ and Ⅲ were significantly increased(P＜0.05),and group Ⅲ was higher than group Ⅱ(P＜0.01);Compared with the control group,the material to weight ratio of the three experimental groups decreased,with a significant decrease in groups Ⅱ and Ⅲ(P＜0.05),and group Ⅲ was significantly lower than group Ⅱ(P＜0.01).(2)Compared with the control group,the activities of CAT,SOD,GSH-Px,and T-AOC in the serum of the three experimental groups continued to increase.The increase was significant in groups Ⅱ and Ⅲ(P＜0.05),and group Ⅲ was significantly higher than group Ⅱ(P＜0.01);Compared with the control group,the MDA content of the three experimental groups decreased,with a significant decrease in groups Ⅱ and Ⅲ(P＜0.05),and group Ⅲ was significantly lower than group Ⅱ(P＜0.01).(3)Compared with the control group,the Ph 1 and Ph 24 values of slaughtered pork in the three experimental groups continued to increase.The increase in groups Ⅱ and Ⅲ was significant(P＜0.05),and group Ⅲ was significantly higher than group Ⅲ(P＜0.01);Compared with the control group,the drip loss of the three experimental groups decreased,with a significant decrease in groups Ⅱ and Ⅲ(P＜0.05),and group Ⅲ was significantly lower than group Ⅱ(P＜0.01);There was no significant difference in other indicators among the four groups(P＞0.05).Research has shown that under the conditions of this experiment,adding 5%Antarctic krill powder to the diet can improve the growth performance and antioxidant capacity of fattening Wulian black pigs,thereby enhancing meat quality indicators.
antarctic krill powderfattening pigswulian black piggrowth performanceantioxidantmeat quality
NETL
NSTL
万方数据
维普
