Effects of Stocking Density on Performance, Immune Organ Indexes and Meat Quality of Yellow-Feathered Broilers

SHAO Dan, ZHANG Shan, SHI Shourong, WANG Qiang, CHANG Lingling, TONG Haibing

doi:10.3969/j.issn.1006-267x.2015.04.029

Chinese Journal of Animal Nutrition >

2015 , Vol. 27 >Issue 4: 1230 - 1235

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.04.029

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Effects of Stocking Density on Performance, Immune Organ Indexes and Meat Quality of Yellow-Feathered Broilers

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Poultry Institute, Chinese Academy of Agricultural Science, Yangzhou 225125, China

Received date: 2014-10-31

Online published: 2015-04-21

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Abstract

This experiment was conducted to evaluate the effects of stocking density on performance, carcass performance, immune organ indexes and meat quality of yellow-feathered broilers. A total of 1 440 twenty-one-day-old Suqin yellow-feathered broilers were randomly placed into 3 groups, 8 (LSD), 16 (MSD) and 24 birds/m² (10 m²/pen) (HSD), respectively. Each group was represented by 3 replicates (pens). The experiment lasted for 21 d (from 22 to 42 days of age). The results showed that body weight (BW), average daily gain and average daily feed intake were significantly increased with decreasing stocking density of yellow-feathered broilers at 42 days of age (P<0.01). The carcass yield was not significantly affected by stocking density (P>0.05). Liver weight of LSD group was significantly higher than HSD group (P<0.01), as well as water-holding capacity of LSD group and MSD group (P<0.01). Thymus weight and thymus weight rate of LSD group was significantly higher than the other groups (P<0.01). In conclusion, the findings in this study reveal that decreasing stocking density properly has a beneficial effect on performance, immune organ indexes and meat quality of yellow-feathered broilers, and 16 birds/m² group is the best.

Key words： yellow-feathered broilers; stocking density; immune organ indexes; meat quality

Cite this article

SHAO Dan, ZHANG Shan, SHI Shourong, WANG Qiang, CHANG Lingling, TONG Haibing . Effects of Stocking Density on Performance, Immune Organ Indexes and Meat Quality of Yellow-Feathered Broilers[J]. Chinese Journal of Animal Nutrition, 2015 , 27(4) : 1230 -1235 . DOI: 10.3969/j.issn.1006-267x.2015.04.029

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