Effects of oregano oil on growth and serum indexes of yaks

doi:10.14088/j.cnki.issn0439-8114.2022.13.022

Abstract

Abstract: In order to study the effects of different doses of origanum oil in yak diet on growth and serological indexes of yaks, three treatments were set up. The control group was supplemented with concentrate feed, and the experimental group was supplemented with concentrate feed and origanum oil at 10 g/d and 20 g/d, respectively. The results showed that the weight gain of 10 g/d group and 20 g/d group was significantly different from that of the control group in the third month（P< 0.05）. In the 10 g/d group, the weight gain in the second month was significantly lower than that in the first month （P< 0.05）, and in the third month was significantly lower than that in the second month （P< 0.05）, and there was no significant difference in other body weight indexes. At the same time, it was found that the contents of α-hydroxybutyric acid （HBDH） and lactate dehydrogenase （LDH） in the 10 g/d group were very significantly lower than those in the control group （P< 0.01）, while the contents of blood urea nitrogen （BUN） were significantly higher than those in the control group （P< 0.05）. In addition, the contents of α-hydroxybutyric acid （HBDH）, lactate dehydrogenase （LDH）, indirect bilirubin （IBIL） and glucose （Glu） in the 20 g/d group were significantly lower than those in the control group（P< 0.05）, and alkaline phosphatase （ALP） content was significantly higher （P< 0.05）, while GLU content was extremely lower （P< 0.01） than that in the 10 g/d group. In general, adding 10 g/d origanum oil to the diet has the best effect on the growth performance and metabolism of yaks.

Key words: yak, oregano oil, growth performance, serum index

CLC Number:

S823.8⁺5

JIANG Hui, SUN Guang-ming, ZHANG Qiang, ZHANG Cheng-fu, ZHU Yong, CAO Han-wen, XIAN Li-li, CHEN Xiao-ying, MA Jin-ying, XIN Jin-wei. Effects of oregano oil on growth and serum indexes of yaks[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(13): 120-124.

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