寒泊羊和小尾寒羊的肌肉组织学性状及理化性状比较研究

Comparative Study on the Histological Traits and Physicochemical Properties of Muscles in Small-tail Han Sheep and Crossbred Hanper Sheep

ZHAO Yan-jiao¹, SUN Hai-yun¹, CUI Ya-li¹，CHANG Qing-ling²，DUN Wei-tao³，SUN Hong-xin³，CHEN Xiao-yong³，TIAN Shu-jun²

(1. College of Veterinary medicine, Hebei Agricultural University, Baoding 071000, China;2. College of Animal Science and Technology, Hebei Agricultural University, Baoding 071000, China；3. Research Institute of Animal Husbandry and Veterinary of Hebei Province, Baoding 071001, China)

Received:2013-09-27 Online:2014-05-20 Published:2014-06-25

Abstract

Abstract: Well-fed Small-tail Han sheep and crossbred Hanper sheep were selected respectively, and the longissimus dorsi, gluteus medius, biceps femoris, triceps brachii muscle samples were collected. We detected the myofiber cross-sectional areas, diameters, crude fat content and the amino acids composition in muscles. The results showed that the diameter and cross-sectional area of longissimus dorsi in Hanper sheep were significant less than that in Small-tail Han sheep (P＜0.01). The diameter and cross-sectional area of biceps femoris in Hanper sheep were greater than that in Small-tail Han sheep (P＜0.05).Crude fat contents of longissimus dorsi and biceps femoris in Hanper sheep were higher than that in Small-tail Han sheep (P＜0.01, P＜0.05). There was no difference in crude fat contents of triceps brachii and gluteus medius between the 2 species （P>0.05）. Taurine content in Small-tail Han sheep was greater than that in Hanper sheep （P<0.01）. The other 17 kinds of amino acids between the 2 species were not difference （P>0.05）. Five kinds of flavor amino acids contents in Hanper sheep were greater than that in Small-tail Han sheep. The six kinds of essential amino acids contents except lysine and tryptophan in Hanper sheep were higher than that in Small-tail Han sheep.

Key words:

lamb; muscle fiber; amino acid; intramuscular fat

ZHAO Yan-jiao, SUN Hai-yun, CUI Ya-li，CHANG Qing-ling，DUN Wei-tao，SUN Hong-xin，CHEN Xiao-yong，TIAN Shu-jun. Comparative Study on the Histological Traits and Physicochemical Properties of Muscles in Small-tail Han Sheep and Crossbred Hanper Sheep[J]. .

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Comparative Study on the Histological Traits and Physicochemical Properties of Muscles in Small-tail Han Sheep and Crossbred Hanper Sheep

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