The effect of adding quinoa seeds instead of quinoa bran in diet on growth performance,immune indicators,and meat quality of fattening sheep
The effect of adding quinoa seeds instead of quinoa bran to the diet on the growth performance,immune indicators,and meat quality of fattening sheep.120 fattening sheep with similar weight were randomly divided into 4 groups in the experiment,with 6 replicates in each group and 5 sheep in each replicate.Using 0%,2%,4%,and 8%quinoa seeds instead of quinoa bran in the basic diet as the experimental feed,the experiment lasted for a total of 70 days(including 10 days of pre trial and 60 days of trial).The experimental results showed that adding 2%～8%quinoa seeds instead of quinoa bran to the diet significantly increased the final body weight by 5.6%,5.8%,and 4.9%,respectively(P＜0.05);Adding 2%～8%quinoa seeds to the diet instead of quinoa bran significantly increased the average daily feed intake by 12.5%,13.8%,and 14.0%,respectively(P＜0.05);Adding 2%～8%quinoa seeds to the diet instead of quinoa bran significantly increased the average daily gain by 20.0%,16.4%,and 14.4%,respectively(P＜0.05);In addition,the feed weight ratio of the group supplemented with 2%quinoa seeds instead of quinoa bran was significantly reduced by 6.4%(P＜0.05).The addition of 2%and 4%quinoa seeds as substitutes for quinoa bran significantly increased the serum IgA and IgG content of meat sheep(P＜0.05),and the addition of quinoa seeds as substitutes for quinoa bran significantly increased the serum TNF of meat sheep-α In addition,the addition of quinoa seeds instead of quinoa bran in the diet did not significantly affect the serum IgM,IL-2,and IL-6 levels of meat sheep(P＞0.05).Adding quinoa seeds instead of quinoa bran to the diet significantly increased the pH of longissimus dorsi muscle in meat sheep for 45 minutes and 24 hours(P＜0.05).Adding 2%and 4%quinoa seeds instead of quinoa bran to the diet significantly increased and decreased the shear strength of longissimus dorsi muscle in meat sheep(P＜0.05).In addition,adding quinoa seeds instead of quinoa bran to the diet had no significant effect on the brightness,redness,yellowness,and drip loss of longissimus dorsi muscle in meat sheep(P＞0.05).Under the conditions of this experiment,the optimal replacement amount of quinoa seeds in the diet of meat sheep is 2%.
NETL
NSTL
万方数据
