Effects of Different Protein Source Combinations on Growth Performance and Serum Biochemical Indices of Nursery Piglets

LI Yunhu, LIAO Peng, TANG Wei, FANG Rejun, DENG Zaofu, LI Wei, LI Meijun

doi:10.3969/j.issn.1006-267x.2018.04.040

Chinese Journal of Animal Nutrition >

2018 , Vol. 30 >Issue 4: 1547 - 1554

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.04.040

Molecular Nutrition

Effects of Different Protein Source Combinations on Growth Performance and Serum Biochemical Indices of Nursery Piglets

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1. College of Animal Science and Technology, Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China;
2. Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
3. Hunan Tianxin Wuling'er Animal Husbandry Co., Ltd., Zhuzhou 412307, China;
4. Hunan Agricultural University, Changsha 410128, China

Received date: 2017-09-22

Online published: 2018-04-03

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Abstract

In this experiment, fish meal, spray-dried plasma protein (SDPP), yeast extract (YE) and dried porcine solubles (DPS) were added into a diet according to a certain proportion, in order to compare the effects of different protein source combinations on growth performance and serum biochemical indices of nursery piglets. A total of 108 nursery piglets with the initial body weight of (6.36±0.20) kg were randomly divided into three groups, each group had six replicates and each replicate had 6 piglets. Piglets in group A (control group) were fed a diet containing 1.5% SDPP+2.0% fish meal, piglets in groups B and C were fed the diets containing 3.0% DPS+5.0% fish meal and 2.0% YE+2.0% DPS+2.0% fish meal, respectively. The experiment comprised 3 d-adaptation and 14 d-test. The results showed as follows:1) the average daily feed intake and average daily gain in the group B were significantly lower than those in the groups A and C (P<0.05). The group C compared with the group A, the average daily feed intake and average daily gain were increased by 1.76% and 8.13%, but the differences were not significant (P>0.05). Feed/gain in the groups B and C had no significant difference compared with the group A (P>0.05), but it in group C was significantly lower than that in group B (P<0.05). 2) The contents of total protein, albumin, globulin and urea nitrogen, albumin/globulin, and the activities of alanine transaminase and aspartate transaminase in serum had no significant differences among three groups (P>0.05). 3) Compared with the group A, the money/gain increased by 13.47% in the group B (P>0.05), and decreased by 5.22% in the group C (P>0.05). It is concluded that the combination of 2.0% YE+2.0% DPS+2.0% fish meal has a best effect for improving the nursery piglets' growth performance and economic benefits, the combination of 1.5% SDPP+2.0% fish meal is the second, and the combination of 3.0% DPS+5.0% fish meal has a worse effect.

Key words： protein sources; combination; nursery piglets; growth performance; serum biochemical indices

Cite this article

LI Yunhu, LIAO Peng, TANG Wei, FANG Rejun, DENG Zaofu, LI Wei, LI Meijun . Effects of Different Protein Source Combinations on Growth Performance and Serum Biochemical Indices of Nursery Piglets[J]. Chinese Journal of Animal Nutrition, 2018 , 30(4) : 1547 -1554 . DOI: 10.3969/j.issn.1006-267x.2018.04.040

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