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Acta Prataculturae Sinica ›› 2024, Vol. 33 ›› Issue (4): 210-220.DOI: 10.11686/cyxb2023190

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Effects of resveratrol supplementation in the perinatal diet on production performance, blood indexes, and transcript abundance of genes encoding inflammatory factors in goats

Jie ZHAO(), Heng-guang CHEN, Xiao-meng PEI, Hao YU, Yin-ying XU, Da-gan MAO()   

  1. College of Animal Science and Technology,Nanjing Agricultural University,Nanjing 210095,China
  • Received:2023-06-09 Revised:2023-07-28 Online:2024-04-20 Published:2024-01-15
  • Contact: Da-gan MAO

Abstract:

The aim of this experiment was to study the effects of resveratrol in the perinatal diet of goats in terms of growth performance, blood indexes, and the transcript levels of genes encoding inflammatory factors. Eighteen multiparous Subai female goats at 129 days of gestation (21 days prior to expected parturition) were divided into a control group (basal diet) and a Res group (supplemented with resveratrol at 400 mg·kg-1 dry matter intake). Blood was collected 15 days before (d-15) and 0 (d0) and 15 (d15) days after parturition, and the productive performance, blood indexes, and transcript levels of genes encoding inflammatory factors were determined. The pre-test period was 1 week and the formal test period was 4 weeks. It was found that the Res treatment did not significantly affect ewe feed intake, lamb birth weight, body size, or daily weight gain. The feed intake significantly changed between before and after parturition (P=0.023), and ewes in both groups had the lowest feed intake on the day of parturition. In terms of biochemical indexes, the Res treatment significantly affected d0 non-etherized fatty acid levels, and the time×Res interaction was significant (P<0.05). The Res treatment tended to affect total cholesterol (TC) (P=0.093), but did not significantly affect triglyceride levels. In both groups, the triglyceride levels differed significantly between before and after delivery (P=0.002). The Res treatment did not significantly affect high density lipoprotein levels, but there was a trend towards an effect of the Res×time interaction (P=0.055). Neither low density lipoprotein nor glucose levels showed significant changes (P>0.05). In terms of antioxidant indexes, the Res treatment significantly increased superoxide dismutase activity on d15P<0.05), and there was a tendency for Res treatment to affect the total antioxidant capacity (P=0.078). However, the Res treatment did not significantly affect glutathione peroxidase activity or the malondialdehyde content (P>0.05). In terms of immunity indexes, the Res treatment significantly affected the immunoglobulin A level on d0P<0.05) and the immunoglobulin M levels on d0 and d15P<0.05), but there was no significant change in the immunoglobulin G level during the test period (P>0.05). The Res treatment led to significantly decreased transcript levels of TNFα and IFNγ on d15P<0.05), but there were no significant changes in the transcript levels of Nrf2HO-1IL-1, and IL-6P>0.05). Our results show that addition of resveratrol to the diet of perinatal ewes affects free fatty acid levels in the blood, enhances their antioxidant performance, and reduces their inflammatory response to a certain extent.

Key words: perinatal period, goats, resveratrol, production performance, inflammatory factor