Effects of Vitamin B2 on Slaughter Performance, Meat Quality and Fat Metabolism of Wulong Geese Aged from 5 to 16 Weeks

WANG Xin; WANG Baowei; GE Wenhua; ZHANG Ming; YUE Bin; XU Chenchen; ZHANG Xuejun

doi:10.3969/j.issn.1006-267x.2014.01.014

2014 , Vol. 26 >Issue 1: 98 - 105

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.01.014

Poultry Nutrition

Effects of Vitamin B₂ on Slaughter Performance, Meat Quality and Fat Metabolism of Wulong Geese Aged from 5 to 16 Weeks

WANG Xin ,
WANG Baowei ,
GE Wenhua ,
ZHANG Ming ,
YUE Bin ,
XU Chenchen ,
ZHANG Xuejun

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1. Institute of High Quality Waterfowl, Qingdao Agricultural University, Qingdao 266109, China;
2. College of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China

Received date: 2013-08-12

Online published: 2013-12-24

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Abstract

This experiment was conducted to study the effects of vitamin B₂ on slaughter performance, meat quality and fat metabolism of Wulong geese aged from 5 to 16 weeks, and to find the appropriate supplemental level of the vitamin B₂. A total of 360 Wulong geese (29-day-old) were randomly divided into 6 groups with 6 replicates per group and 10 geese per replicate. Geese in the group Ⅰ (control group) were fed a basal diet, and geese in groups Ⅱ to Ⅵ (experimental groups) were fed the basal diet supplemented with 2.5, 5.0, 10.0, 20.0 and 40.0 mg/kg vitamin B₂, respectively. The experiment lasted for 12 weeks. The results showed as follows: 1) the dressed percentage, percentage of breast muscle and percentage of leg muscle in group Ⅲ were significantly higher than those in group Ⅰ (P<0.05), but the percentage of abdominal fat was significantly lower than that in group Ⅰ (P<0.05). Using unrelated comparative analysis method, when the dietary vitamin B₂ level was 5.73 mg/kg, the dressed percentage reached the highest. 2) The lightness (L^*) and red (a^*) values in group Ⅲ were significantly higher than those in group Ⅰ (P<0.05), but the shear force was significantly lower than that in group Ⅰ (P<0.05). 3) The contents of triglyceride and total cholesterol in group Ⅲ were significantly lower than those in group Ⅰ (P<0.01). 4) Dressed percentage had significant correlations with the a^* value and shear force (P<0.05), respectively; the slaughter performance had significant correlations with the contents of triglycerides and total cholesterol (P<0.05 or P<0.01),respectively. In conclusion, adding 5.0 mg/kg vitamin B₂ can significantly affect the dressed percentage, percentage of breast muscle, percentage of leg muscle, percentage of abdominal fat, L^* value, a^* value, shear force and contents of triglyceride and total cholesterol, the suggested dietary vitamin B₂ optimal supplemental level is 5.73 mg/kg.

Key words： vitamin B₂; Wulong geese; slaughter performance; meat quality; fat metabolism

Cite this article

WANG Xin , WANG Baowei , GE Wenhua , ZHANG Ming , YUE Bin , XU Chenchen , ZHANG Xuejun . Effects of Vitamin B₂ on Slaughter Performance, Meat Quality and Fat Metabolism of Wulong Geese Aged from 5 to 16 Weeks[J]. Chinese Journal of Animal Nutrition, 2014 , 26(1) : 98 -105 . DOI: 10.3969/j.issn.1006-267x.2014.01.014

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