Effects of Pig Placental Powder on Reproductive Performance, Serum Immune and Reproductive Hormone Indexes and Milk Composition of Lactating Sows

ZHANG Shangwei, HUANG Dapeng

doi:10.3969/j.issn.1006-267x.2018.10.037

2018 , Vol. 30 >Issue 10: 4113 - 4120

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.10.037

Molecular Nutrition

Effects of Pig Placental Powder on Reproductive Performance, Serum Immune and Reproductive Hormone Indexes and Milk Composition of Lactating Sows

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College of Animal Science & Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China

Received date: 2018-03-16

Online published: 2018-10-20

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Abstract

This experiment was conducted to study the effects of pig placental powder on reproductive performance, serum immune and reproductive hormone indexes and milk composition of lactating sows. Thirty-six multiparity sows (Large White×Landrace) with similar weight and parity were randomly into 4 groups with 9 replicates per group and 1 sow per replicate. Sows in the control group was fed a basal diet, and others in experimental groups (groups Ⅰ, Ⅱ, and Ⅲ) were fed the basal diets supplemented with 1%, 3%, and 5% pig placental powder, respectively. The trial began on 104 days after pregnancy and ended on 21 days after delivery. The results showed as follows:1) the milk ability, weaning piglet average weight and litter weaning weight in group Ⅲ were significantly higher than those in the control group (P<0.05), the average daily gain of piglets in groups Ⅱ and Ⅲ was significantly higher than that in the control group (P<0.05 or P<0.01), the weight loss of sows in group Ⅲ was significantly lower than that in the control group (P<0.05). 2) On the 3rd day after delivery, the serum interleukin-6 (IL-6) content in group Ⅱ was significantly higher than that in control group and groups Ⅰ and Ⅲ (P<0.05 or P<0.01), the serum immunoglobulin A (IgA) content in groups Ⅰ, Ⅱ and Ⅲ was significantly higher than that in the control group (P<0.05), the serum immunoglobulin M (IgM) content in group Ⅰ was significantly higher than that in control group and group Ⅲ (P<0.01), the serum prolactin (PRL) content in groups Ⅱ and Ⅲ was significantly higher than that in the control group (P<0.05). On the 15th day after delivery, the serum IgA content in groups Ⅰ and Ⅱ was significantly higher than that in the control group and group Ⅲ (P<0.05 or P<0.01), the serum immunoglobulin G (IgG) content in group Ⅱ was significantly higher than that in the control group and group Ⅲ (P<0.05 or P<0.01), the serum IgM content in group Ⅰ was significantly higher than that in control group (P<0.01), the serum PRL content in groups Ⅰ, Ⅱ and Ⅲ was significantly higher than that in control group (P<0.01). 3) The milk fat ratio in group Ⅲ was significantly higher than that in control group and group Ⅰ (P<0.05), the lactose ratio in groups Ⅱ and Ⅲ was significantly higher than that in control group and group Ⅰ (P<0.05 or P<0.01). It is suggested that adding pig placental powder into the diet can improve reproductive performance, serum immune and reproductive hormones indexes and milk quality of lactating sows. The appropriate amount of pig placental powder is 3% in this experimental condition.

Key words： pig placental powder; lactating sows; reproductive performance; immune index; reproductive hormones; milk quality

Cite this article

ZHANG Shangwei, HUANG Dapeng . Effects of Pig Placental Powder on Reproductive Performance, Serum Immune and Reproductive Hormone Indexes and Milk Composition of Lactating Sows[J]. Chinese Journal of Animal Nutrition, 2018 , 30(10) : 4113 -4120 . DOI: 10.3969/j.issn.1006-267x.2018.10.037

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