Effects of Oligo-Chitosan on Reproduction Performance, Lactation Performance and Plasma Biochemical Parameters of Sows

LIU Yingying, ZHANG Xing, REN Huibo, LUO Xuan, YUAN Xupeng, DENG Yuan, PENG Yinglin

doi:10.3969/j.issn.1006-267x.2017.12.034

Chinese Journal of Animal Nutrition >

2017 , Vol. 29 >Issue 12: 4525 - 4533

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.12.034

Molecular Nutrition

Effects of Oligo-Chitosan on Reproduction Performance, Lactation Performance and Plasma Biochemical Parameters of Sows

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1. Hunan Institute of Animal and Veterinary Sciences, Changsha 410131, China;
2. Hunan Pig Industry Technology System, Changsha 410131, China;
3. Hunan Co-Innovation Center of Animal Production Safety, Changsha, 410128, China;
4. Hunan Xinguang'an Agriculture and Livestock Co., Ltd., Changsha 410129, China

Received date: 2017-05-16

Online published: 2017-12-04

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Abstract

This study was conducted to investigate the effects of dietary oligo-chitosan on reproduction performance, lactation performance and plasma biochemical parameters of sows. Twenty-four healthy female Yorkshire sows with similar parity, body weight and expected date of childbirth were assigned into 3 groups with 8 replicates per group and 1 sow per replicate. Sows in the control group were fed the basal diet, and the others in the experimental groups Ⅰ and Ⅱ were fed the basal diet supplemented with 50 and 100 g/t oligo-chitosan, respectively. The experiment lasted from the 85^th day of pregnancy to the 21^st day after delivery. The results showed as follows:1) compared with the control group, dietary oligo-chitosan significantly increased the healthy piglets and average daily feed intake (ADFI) of lactation of sows (P<0.05), significantly decreased the born process time of sows (P<0.05), and improved constipation and decreased backfat thickness loss of sows to a certain extent. The birth litter weight of piglets in experimental group Ⅰ was significantly higher than that in the control group (P<0.05), and the total milk yield during lactation of sows in experimental group Ⅱ was significantly higher than that in the control group (P<0.05). 2) Compared with the control group, the milk fat content in colostrum of sows in experimental groups Ⅰ and Ⅱ was significantly increased (P<0.05), and the contents of urea nitrogen (UN) in colostrum and arginine, total amino acids and limiting amino acids in milk in experimental group Ⅰ were significantly increased (P<0.05). 3) The activity of glutamic-pyruvic transaminase (GPT) in plasma of sows in experimental groups Ⅰ and Ⅱ was significantly lower than that in the control group (P<0.05), and the activities of alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) and the contents of total protein (TP), albumin (ALB), UN, triglyceride (TG), total cholesterol (CHO), high-density lipoprotein (HDL) and low-density lipoprotein (LDL) in plasma had no significant differences among all groups (P>0.05). In conclusion, dietary oligo-chitosan can promote the reproduction performance and lactation performance of sows. According to the results of this study, the optimum dosage of oligo-chitosan in diet of sow is 50 g/t.

Key words： oligo-chitosan; sows; reproduction performance; lactation performance; plasma biochemical parameters

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LIU Yingying, ZHANG Xing, REN Huibo, LUO Xuan, YUAN Xupeng, DENG Yuan, PENG Yinglin . Effects of Oligo-Chitosan on Reproduction Performance, Lactation Performance and Plasma Biochemical Parameters of Sows[J]. Chinese Journal of Animal Nutrition, 2017 , 29(12) : 4525 -4533 . DOI: 10.3969/j.issn.1006-267x.2017.12.034

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