Effects of Lipase Supplemented in Different Energy Level Diets on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes of Weaned Piglets

ZHANG Li; CHEN Daiwen; YU Bing; HE Jun; ZHENG Ping; MAO Xiangbing; WANG Quyuan; HUANG Zhiqing; LUO Junqiu; YU Jie

doi:10.3969/j.issn.1006-267x.2015.12.026

2015 , Vol. 27 >Issue 12: 3854 - 3860

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.12.026

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Effects of Lipase Supplemented in Different Energy Level Diets on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes of Weaned Piglets

ZHANG Li ,
CHEN Daiwen ,
YU Bing ,
HE Jun ,
ZHENG Ping ,
MAO Xiangbing ,
WANG Quyuan ,
HUANG Zhiqing ,
LUO Junqiu ,
YU Jie

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Institute of Animal Nutrition, Key Laboratory of Animal Disease-Resistance Nutrition, China Ministry of Agriculture, Sichuan Agricultural University, Chengdu 611130, China

Received date: 2015-06-25

Online published: 2015-12-14

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Abstract

This experiment was conducted to assess the effects of lipase supplemented in the diets with different energy levels on growth performance, nutrient apparent digestibility and serum biochemical indexes of weaned piglets. The experiment used a 2×3 factorial design with three levels of digestive energy(DE, 14.04, 13.72 and 13.41 MJ/kg) and two levels of lipase(0 and 2 U/g). Ninety 28-day-old "Duroc×Landrace×Large Yorkshire" weaned piglets with body weight of(6.43±0.57) kg were assigned to six treatments with 5 replicates per treatment and 3 pigs per replicate for a 28 d feeding period. The results showed as follows:lipase supplementation significantly reduced ratio of feed to gain(F/G), serum contents of total cholesterol(TC), triglyceride(TG), high density lipoprotein cholesterol(HDL-C) and low density lipoprotein cholesterol(LDL-C) of piglets(P<0.05 or P<0.01), and tended to improve the apparent digestibility of dry matter(DM), crude protein(CP) and gross energy(GE) of piglets(0.05<P<0.10). However, there were no significant effects on average daily feed intake(ADFI) and average daily gain(ADG) after lipase supplementation(P>0.05). ADG and ADFI of piglets were significantly improved(P<0.05), and the apparent digestibility of DM and GE were significantly decreased(P<0.05 or P<0.01) by decreasing dietary DE levels. There were no significant interactions on growth performance, nutrient apparent digestibility and serum biochemical indexes of weaned piglets between DE levels and lipase. Summing up, under the DE levels of the present experiment, lipase supplementation decreases F/G, promotes lipid metabolism, and tends to improve the nutrient apparent digestibility.

Key words： weaned piglets; lipase; nutrient apparent digestibility; growth performance

Cite this article

ZHANG Li , CHEN Daiwen , YU Bing , HE Jun , ZHENG Ping , MAO Xiangbing , WANG Quyuan , HUANG Zhiqing , LUO Junqiu , YU Jie . Effects of Lipase Supplemented in Different Energy Level Diets on Growth Performance, Nutrient Apparent Digestibility and Serum Biochemical Indexes of Weaned Piglets[J]. Chinese Journal of Animal Nutrition, 2015 , 27(12) : 3854 -3860 . DOI: 10.3969/j.issn.1006-267x.2015.12.026

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