Effects of Different Proportion of Distillers' Grains on Performance, Serum Indices and Rumen Fermentation of Goats

JI Yu; WANG Ruocheng; WANG Feng; NIE Haitao; MA Tiewei; SUN Lingwei; WANG Ziyu

doi:10.3969/j.issn.1006-267x.2016.06.035

Chinese Journal of Animal Nutrition >

2016 , Vol. 28 >Issue 6: 1916 - 1923

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.06.035

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Effects of Different Proportion of Distillers' Grains on Performance, Serum Indices and Rumen Fermentation of Goats

JI Yu ,
WANG Ruocheng ,
WANG Feng ,
NIE Haitao ,
MA Tiewei ,
SUN Lingwei ,
WANG Ziyu

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1. Jiangsu Engineering Technology Research Center of Mutton Sheep & Goat Industry, Nanjing 210095, China;
2. Research & Development Center of Haimen Goats, Nanjing Agricultural University, Haimen 226121, China

Received date: 2015-12-22

Online published: 2016-06-27

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Abstract

This experiment was conducted to use different proportions of distillers' grains to equivalently replace beanstalk, so as to determine the optimal supplemental level of distillers' grains in diets of growing goats. Thirty two four-month-old goats [(21.56±1.21) kg] were randomly assigned to 4 groups (n=8). Beanstalk in total mixed rations of 4 groups were equivalently replaced by distillers' grains at 0 (control), 8%, 15% and 25%, respectively. Goats were slaughtered after feeding for 90 d to determine the indices of performance, serum indices, slaughter performance, meat quality and rumen fermentation. The results showed as follows: 15% group had the highest average net gain and average daily gain, the best economic benefit and the lowest feed/gain, which were significantly higher than those in control group (P<0.05). Serum cholesterol content in 8% and 15% groups was significantly higher than that in control group and 25% group (P<0.05). Serum growth hormone, insulin-like growth factor Ⅰ, insulin and thyroxine contents in 15% group were significantly higher than those in control group and 25% group (P<0.05). The weights of carcass, testicles, lung, liver, omasum and abomasum in 15% group were significantly higher than those in control group and 25% group (P<0.05). There were no significant differences in pH, pH₂₄, water loss rate and cooked meat rate of muscle, as well as rumen weight and rumen fluid pH among groups (P>0.05). Rumen fluid ammonia nitrogen concentration in 15% and 25% groups were significantly higher than those in control group (P<0.05), but there was no significant differences among the two experimental groups (P>0.05). In general, diet supplemented with 15% distillers' grains has the best effects for goats during the period of growing.

Key words： goats; distillers' grains; performance; serum indices; rumen fermentation

Cite this article

JI Yu , WANG Ruocheng , WANG Feng , NIE Haitao , MA Tiewei , SUN Lingwei , WANG Ziyu . Effects of Different Proportion of Distillers' Grains on Performance, Serum Indices and Rumen Fermentation of Goats[J]. Chinese Journal of Animal Nutrition, 2016 , 28(6) : 1916 -1923 . DOI: 10.3969/j.issn.1006-267x.2016.06.035

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