Correlation between Muscle Fiber Structure and Meat Quality Traits of Blue Peacock Under the Chickens Nutrition Standards of NRC

YANG Fumin; WEN Pengcheng; LI Chenxi

doi:10.3969/j.issn.1006-267x.2014.07.008

2014 , Vol. 26 >Issue 7: 1769 - 1779

DOI: https://doi.org/10.3969/j.issn.1006-267x.2014.07.008

Poultry Nutrition

Correlation between Muscle Fiber Structure and Meat Quality Traits of Blue Peacock Under the Chickens Nutrition Standards of NRC

YANG Fumin ,
WEN Pengcheng ,
LI Chenxi

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College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China

Received date: 2014-01-30

Online published: 2014-07-01

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Abstract

This experiment was conducted to study the correlation between muscle fiber structure and meat quality traits of blue peacock. Twenty-four healthy 30-month-old blue peacock and Sanhuang chickens (control group) were selected, half male and half female, using the methods of paraffin section, hematoxylin-eosin staining, microscope images and transmission electron microscopy to study the muscle fiber structure and meat quality traits in back, neck, wing, leg and chest of blue peacock, and analyzed the correlation between muscle fiber structure and meat quality traits. The results showed as follows: 1) the muscle fiber proportion in different parts of female blue peacock was lower than that of male blue peacock, the muscle fiber proportion in neck was the highest, while the muscle fiber proportion in leg was the lowest. 2) There was no significant difference in the average muscle fiber diameter between female and male blue peacock (P>0.05), however, there was significant difference in different parts (P0.05). The muscle water-loss rate in wing and chest were significantly lower than that in back and leg of male blue peacock (P<0.05), and the muscle water-loss rate in leg was significantly lower than that in chest of female Sanhuang chickens (P<0.05). 4) The muscle fiber diameter had significant positive correlation with muscle fiber area and shearing force (P<0.01), and had significant negative correlation with muscle fiber density, water-loss rate and pH₂₄ (P<0.01), and had significant positive and negative correlation with muscle fiber proportion and pH₁ (P<0.05). The muscle fiber density had significant negative correlation with shearing force, muscle fiber diameter and muscle fiber area (P<0.01), and had significant positive correlation with water-loss rate, pH₁ and pH₂₄ (P<0.01). The muscle fiber proportion had significant negative correlation with sarcomere length (P<0.01). In conclusion, the correlation between muscle fiber structure and meat quality traits of blue peacock is primarily confirmed in this paper.

Key words： blue peacock; muscle; muscle fiber structure; correlation

Cite this article

YANG Fumin , WEN Pengcheng , LI Chenxi . Correlation between Muscle Fiber Structure and Meat Quality Traits of Blue Peacock Under the Chickens Nutrition Standards of NRC[J]. Chinese Journal of Animal Nutrition, 2014 , 26(7) : 1769 -1779 . DOI: 10.3969/j.issn.1006-267x.2014.07.008

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