China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (6): 1819-1827.doi: 10.16431/j.cnki.1671-7236.2020.06.021

• Genetics and Breeding • Previous Articles     Next Articles

Effects of Estrus Induction on Lambing and Serum Index of Cashmere Goats in Non-breeding Season

WANG Tao1,2, LI Yurong2, HE Yunmei3, XU Fuxun4, SUN Xuefeng5, A Lamusi5, SUN Chunhe6, ZHAO Shengguo1, LIU Bin2   

  1. 1. College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730600, China;
    2. Inner Mongolia Academy of Agriculture and Animal Husbandry, Hohhot 010031, China;
    3. Livestock Improvement Workstation in Etuoke Banner, Ordos city, Inner Mongolia, Ordos 016100, China;
    4. Inner Mongolia Bayannur City Academy of Agriculture and Animal Husbandry, Bayannur 015000, China;
    5. Inner Mongolia Wulate Middle Banner Animal Husbandry Workstation, Bureau of Agriculture, Animal Husbandry and Science and Technology, Wulate Middle Banner 015300, China;
    6. Inner Mongolia Bayannaoer City Tonghetai Breeding Farm, Wulate Middle Banne 015300, China
  • Received:2019-12-16 Online:2020-06-20 Published:2020-06-20

Abstract: The aim of the paper was to study Chinese herbal medicine concentration aphrodisiac and PMSG exogenous induction to the non-breeding season goat lambing and serum index of Inner Mongolia cashmere goats.272 Inner Mongolia cashmere goats of similar weight were selected and divided into Chinese herbal medicine test group Ⅰ (112 goats),hormone test group Ⅱ (100 goats) and control group (60 goats).The group Ⅰ was fed Chinese herbal medicine (50 g/goat),starting 7 days before estrus,once every two days;The group Ⅱ sponge plug+PMSG 250 IU per goat,normal feeding of control group.Blood samples were collected from jugular vein of 5 sheep in each group before early feeding on the second day after the end of the experiment,and the changes of physiological,biochemical and reproductive hormones in serum were measured and analyzed.The results showed that the oestrus rate,lambing rate and double lambing rate of the group Ⅰ and the group Ⅱ were significantly higher than that of control group (P<0.01),the lambing rate and double lambing rate of the group Ⅱ were significantly higher than that of the group Ⅰ (P<0.01),and the oestrus rate was significantly higher than that of the group Ⅰ (P<0.05).The contents of TP,ALB,UREA and GSH-Px in the group Ⅱ were significantly higher than those in the group Ⅰ and control group (P<0.05).The content of MDA and SOD activity in the group Ⅰ were significantly higher than those in the group Ⅱ and control group (P<0.05).The contents of FSH,E2 and LH in the group Ⅱ were significantly higher than those in the control group (P<0.05),and the differences of P4 and T among the three groups were not significant (P>0.05).The reproductive hormones in the group Ⅰ were higher than those in the control group,but the differences were not significant (P>0.05).Correlation analysis of hormones and antioxidant enzymes showed that the group Ⅰ P4 was significantly negatively correlated with GSH-Px (P<0.05),with a correlation coefficient of -0.594,while the group Ⅱ LH was significantly positively correlated with GSH-Px (P<0.01),with a correlation coefficient of 0.757.In conclusion,Chinese herbal medicine and hormone treatment could significantly promote the oestrus concentration and increase lambing rate of Inner Mongolia cashmere goats in non-breeding season.Hormone treatment could improve the digestion and utilization of protein and antioxidant function of Inner Mongolia cashmere goats in non-breeding season,and Chinese herbal medicine treatment could increase the activity of serum SOD.It was found that there was significant antagonistic effect between GSH-Px and P4,and significant promoting effect between GSH-Px and LH.

Key words: Inner Mongolia cashmere goat; Chinese herbal medicine; reproductive performance; biochemical indicators; reproductive hormones

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