RESEARCH PAPER

Effects of Dietary Fermented Alfalfa on Reproductive Performance of Sows and Antioxidant Capacity of Sows and Piglets

  • SU Yingying ,
  • WANG Tengfei ,
  • LIU Xule ,
  • ZHAO Shumin ,
  • WANG Chengzhang ,
  • JIAO Xilan ,
  • LI Zhentian ,
  • SUN Xiao
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  • 1. College of Animal Science and Technology, Henan Agricultural University, Zhengzhou 450002, China;
    2. Key Laboratory of Innovation and Utilization of Grassland Resources in Henan Province, Zhengzhou 450002, China;
    3. Henan Engineering Research Center for Forage, Zhengzhou 450002, China;
    4. College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China

Received date: 2021-07-14

  Online published: 2022-02-15

Abstract

The experiment was conducted to study the effects of dietary fermented alfalfa on reproductive performance of sows and antioxidant capacity of sows and piglets. Eighty Landrace×Large White pregnant primiparous sows with similar body condition and expected delivery date were randomly divided into 4 groups (control group, trial group Ⅰ, trial group Ⅱ and trial group Ⅲ) with 5 replicates in each group and 4 sows in each replicate. They were fed diets supplemented with 0, 5%, 10% and 15% fermented alfalfa, respectively. The experiment was from the beginning of pregnancy to the end of lactation in sows. The results showed as follows:1) compared with the control group, the survival rate, the number of piglets born healthy and the healthy piglet rate in trial group Ⅱ were significantly increased (P<0.05), while the stillbirth number, the number of weak piglets and the born process time were significantly decreased (P<0.05); and the intrauterine growth retardation (IUGR) incidence rate in all trial groups was significantly decreased (P<0.05). 2) Compared with the control group, the average daily feed intake of sows in trial group Ⅰ during the lactation period was significantly increased (P<0.05), and there was an increasing trend in the trial group Ⅱ (P=0.064); the backfat thickness of 30 and 60 days of pregnancy and the prenatal backfat thickness in trial group Ⅱ and trial group Ⅲ were significantly decreased (P<0.05). 3) Compared with the control group, the litter weight at birth, the litter weight and individual body weight on day 7, the litter weight and individual body weight on day 14 and the weaning individual body weight in trial group Ⅱ and trial group Ⅲ were significantly increased (P<0.05); the weaning litter weight, the average litter daily weight gain and the individual body weight at birth in trial group Ⅱ were significantly increased (P<0.05). 4) Compared with the control group, the birth litter weight distribution in trial group Ⅱ was significantly improved (P<0.05); the weaning litter weight distribution in trial group Ⅱ and trial group Ⅲ was significantly improved (P<0.05). 5) Compared with the control group, on day 30 of gestation in sows, the activity of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in serum of sows in trial group Ⅰ and trial group Ⅱ was significantly increased (P<0.05); on day 90 of gestation in sows, the GSH-Px activity in serum in trial group Ⅱ was significantly increased (P<0.05), and the malondialdehyde (MDA) content in serum was significantly decreased (P<0.05); during the lactation period, the total antioxidant capacity (T-AOC) in serum in trial group Ⅲ was significantly increased (P<0.05), and the MDA content in serum in trial group Ⅱ and trial group Ⅲ was significantly decreased (P<0.05). 6) Compared with the control group, the activity of SOD and GSH-Px in serum of piglets in trial group Ⅱ was significantly increased (P<0.05), the T-AOC and SOD activity in serum in trial group Ⅲ was significantly increased (P<0.05); and the MDA content in serum in all trial groups was significantly decreased (P<0.05). To sum up, dietary fermented alfalfa can enhance the serum antioxidant function of sows and piglets, shorten the born process time and reduce the number of IUGR piglets, improve the uniformity of piglets and increase the number of weaned piglets, which has a positive effect on the reproductive performance of primiparous sows, and the suitable supplemental level is 10%.

Cite this article

SU Yingying , WANG Tengfei , LIU Xule , ZHAO Shumin , WANG Chengzhang , JIAO Xilan , LI Zhentian , SUN Xiao . Effects of Dietary Fermented Alfalfa on Reproductive Performance of Sows and Antioxidant Capacity of Sows and Piglets[J]. Chinese Journal of Animal Nutrition, 2022 , 34(2) : 805 -817 . DOI: 10.3969/j.issn.1006-267x.2022.02.015

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