Effects of Dietary Transformed Lactobacillus with Pig Growth Hormone Gene on Growth Performance, Immune Performance, Fecal Microflora and Nutrient Apparent Digestibility of Weaning Piglets

LI Fangfang; LI Xiaoli; ZHU Yujin; ZHENG Lili; GAO Yuan; MENG Ling; GUO Fulai; DING Lan; MI Chuntao; ZHANG Yong

doi:10.3969/j.issn.1006-267x.2015.09.025

2015 , Vol. 27 >Issue 9: 2863 - 2870

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.09.025

Short Communications

Effects of Dietary Transformed Lactobacillus with Pig Growth Hormone Gene on Growth Performance, Immune Performance, Fecal Microflora and Nutrient Apparent Digestibility of Weaning Piglets

LI Fangfang ,
LI Xiaoli ,
ZHU Yujin ,
ZHENG Lili ,
GAO Yuan ,
MENG Ling ,
GUO Fulai ,
DING Lan ,
MI Chuntao ,
ZHANG Yong

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1. College of Animal Sciences and Veterinary Sciences, Shenyang Agricultural University, Shenyang 110866, China;
2. Liaoning Debao Argi-animal Husbandry Co., Ltd., Shenyang 110171, China;
3. Shenyang Fukang Agriculture and Animal Husbandry Technology Co., Ltd., Shenyang 110164, China

Received date: 2015-04-15

Online published: 2015-09-12

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Abstract

One hundred and sixty large white weaning piglets of (21±2) days of age were used to study the effects of dietary transformed Lactobacillus with pig growth hormone (PGH) gene on growth performance, immune performance, fecal microflora and nutrient apparent digestibility. These piglets were randomly allocated into 4 groups with 4 replicates per group and 10 piglets per replicate in a complete randomized design. The control group was fed a basal diet only, trial groups were fed the basal diet with 0.1%, 0.2%, 0.3% transformed Lactobacillus with PGH gene, respectively. The Trial lasted for 28 days. The results showed as follows: 1) compared with the control group, the average daily gain (ADG) and final weight were significantly increased (P<0.01) and the F/G significantly reduced (P<0.05) of weaning piglets fed diet with transformed Lactobacillus with PGH gene; the rate and index of diarrhea were significantly decreased of trial groups (P<0.01). 2) Compared with the control group, the contents of serum IgA and C4 were significantly increased of weaning piglets fed diet with 0.1% transformed Lactobacillus with PGH gene (P<0.05 or P<0.01). 3) Compared with the control group, the number of fecal E.coli was significantly lower of trial groups (P<0.05), the number of Lactobacillus of weaning piglets fed diet with 0.1% transformed Lactobacillus with PGH gene was significantly increased (P<0.01). 4) Compared with the control group, the apparent digestibility of dry matter and crude protein of weaning piglets fed diet with 0.1% transformed Lactobacillus with PGH gene were significantly increased (P<0.01), the apparent digestibility of total phosphorus was significantly increased (P<0.05). It is conclude that transformed Lactobacillus with PGH gene is an ideal feed additive to improve the growth performance and apparent digestibility, regulate intestinal microflora balance and the immune function in piglets, and the optimal supplemental level is 0.1%.

Key words： PGH; Lactobacillus; weaning piglets; growth performance; immunity; intestinal flora; nutrient apparent digestibility

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LI Fangfang , LI Xiaoli , ZHU Yujin , ZHENG Lili , GAO Yuan , MENG Ling , GUO Fulai , DING Lan , MI Chuntao , ZHANG Yong . Effects of Dietary Transformed Lactobacillus with Pig Growth Hormone Gene on Growth Performance, Immune Performance, Fecal Microflora and Nutrient Apparent Digestibility of Weaning Piglets[J]. Chinese Journal of Animal Nutrition, 2015 , 27(9) : 2863 -2870 . DOI: 10.3969/j.issn.1006-267x.2015.09.025

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