Effects of Cottonseed Meal Fermented by Lactobacillus acidophilus on Growth Performance, Slaughter Performance and Biochemical Indexes in Serum of Yellow-Feathered Broilers

ZHANG Xiaoyang; WANG Yongqiang; ZHANG Wenju; LIU Jiancheng; YANG Liang

doi:10.3969/j.issn.1006-267x.2016.12.021

2016 , Vol. 28 >Issue 12: 3885 - 3893

DOI: https://doi.org/10.3969/j.issn.1006-267x.2016.12.021

Molecular Nutrition

Effects of Cottonseed Meal Fermented by Lactobacillus acidophilus on Growth Performance, Slaughter Performance and Biochemical Indexes in Serum of Yellow-Feathered Broilers

ZHANG Xiaoyang ,
WANG Yongqiang ,
ZHANG Wenju ,
LIU Jiancheng ,
YANG Liang

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College of Animal Sciences and Technology, Shihezi University, Shihezi 832003, China

Received date: 2016-06-28

Online published: 2016-12-17

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Abstract

This study was conducted to examine the effects of cottonseed meal fermented by Lactobacillus acidophilus on growth performance, slaughter performance and biochemical indexes in serum of yellow-feathered broilers. One hundred and eighty 21-day-old healthy male yellow-feathered broilers were randomly divided into 3 groups with 6 replicates per group and 10 broilers per replicate. The three groups were groups Ⅰ (control group), Ⅱ and Ⅲ, the broilers in the control group were fed the basal diet included 6% cottonseed meal, and those in group Ⅱ were fed the experimental diet included 6% fermented cottonseed meal, the others in group Ⅲ were fed the basal diet included 6% cottonseed meal and 7.00×10⁴ CFU/g Lactobacillus acidophilus. The experimental period included two phases of 21 to 42 days of age and 43 to 64 days of age. The results showed as follows:1) at 21 to 42 days of age, compared with the control group, average daily gain (ADG) of yellow-feathered broilers in group Ⅱ was significantly increased by 8.61% (P<0.05) and the ratio of feed to gain (F/G) in group Ⅱ was significantly decreased by 7.69% (P<0.05), and average daily feed intake (ADFI), ADG and F/G in group Ⅲ had no significant differences (P>0.05). ADG in group Ⅱ was significantly increased by 4.56% compared with group Ⅲ (P<0.05). At 43 to 64 days of age, compared with the control group, ADG in group Ⅱ was significantly increased by 12.32% (P<0.05), and ADFI, ADG and F/G in group Ⅲ had no significant differences (P>0.05). ADG in group Ⅱ was significantly increased by 8.20% compared with group Ⅲ (P<0.05). At 21 to 64 days of age, ADFI, ADG and F/G had no significant differences among all groups (P>0.05). 2) At 42 days of age, compared with the control group, dressing percentage, percentage of half-eviscerated yield and percentage of eviscerated yield of yellow-feathered broilers in group Ⅱ were significantly increased by 2.99%, 7.55% and 12.33% (P<0.05), respectively; and the slaughter performance indexes in group Ⅲ had no significant differences (P>0.05). The dressing percentage and percentage of half-eviscerated yield in group Ⅱ were significantly increased by 3.43% and 6.38% compared with group Ⅲ (P<0.05). At 64 days of age, compared with the control group, dressing percentage, percentage of breast muscle and percentage of leg muscle in groupⅡ were significantly increased by 5.27%, 8.92% and 7.05% (P<0.05), respectively, and percentage of half-eviscerated yield in group Ⅱ was significantly increased by 6.84% (P<0.01); and the slaughter performance indexes in group Ⅲ had no significant differences (P>0.05). The dressing percentage, percentage of half-eviscerated yield and percentage of breast muscle in group Ⅱ were significantly increased by 4.08%, 4.35% and 5.16% compared with group Ⅲ (P<0.05). 3) At 42 days of age, compared with the control group, the contents of total protein (TP) and albumin (ALB) in serum of yellow-feathered broilers in group Ⅱ were significantly increased by 10.06% and 12.60% (P<0.05), respectively, and the content of serum urea nitrogen (UN) in group Ⅱ was significantly decreased by 46.76% (P<0.01); and the biochemical indexes in serum in group Ⅲ had no significant differences (P>0.05). Compared with group Ⅲ, the contents of TP and ALB in serum in group Ⅱ were significantly increased by 9.58% and 13.10% (P<0.05), respectively, and the content of UN in serum in group Ⅱ was significantly decreased by 47.88% (P<0.05). At 64 days of age, compared with the control group, the content of calcium (Ca) in serum in group Ⅱ was significantly increased by 11.74% (P<0.05), and the content of UN in group Ⅱ was significantly decreased by 37.40% (P<0.01); and the biochemical indexes in serum in group Ⅲ had no significant differences (P>0.05). The content of UN in group Ⅱ was significantly decreased by 40.58% compared with group Ⅲ (P<0.01). In conclusion, dietary fermented cottonseed meal can improve the growth performance and slaughter performance of yellow-feathered broilers, enhance digestion and absorption of nutrients such as protein, fat and Ca of yellow-feathered broilers.

Key words： fermented cottonseed meal; yellow-feathered broilers; growth performance; slaughter performance; serum biochemical indexes

Cite this article

ZHANG Xiaoyang , WANG Yongqiang , ZHANG Wenju , LIU Jiancheng , YANG Liang . Effects of Cottonseed Meal Fermented by Lactobacillus acidophilus on Growth Performance, Slaughter Performance and Biochemical Indexes in Serum of Yellow-Feathered Broilers[J]. Chinese Journal of Animal Nutrition, 2016 , 28(12) : 3885 -3893 . DOI: 10.3969/j.issn.1006-267x.2016.12.021

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