The Genetic Characteristics of Meat Quality and Nutritional Components of Yunan Black Pig and its Hybrid Pigs
The paper aims to analyze the characteristics of meat traits and nutrient components of Yunan Black pig and its three kinds of hybrids.The hybridization investigations between American Duroc boar,Berkshire boar,Sutai sow with Yunan Black pig were conducted under the same feeding condition,with Yunan Black pigs being the control.The common meat quality traits and nutrition status as well as amino acid score were measured and assessed,and the composition of amino acids and fatty acids of longissimus dorsi of three sorts of F1 intercross populations were identified.The results showed that the intramuscular fat in muscle,five fresh flavors amino acids and eight essential amino acids of Yunan Black pig were all higher than that of the hybrid offspring (P＞0.05).Yunan Black pig and its three kinds of F1 hybrids have good quality in common meat traits but with different heterosis.Loin eye area increased significantly when hybridizing with Duroc (P＜0.05),cooked meat percentage improved significantly (P＜0.05)when intercrossing with Berkshire while cutting force declined remarkable when crossing with Sutai pigs (P＜0.05).The contents of amino acids in four groups were consistent with each other without significant difference (P＞0.05).There was no significant difference for five sorts of saturated fatty acids in all four groups (P＞0.05).Crossbreeding effect of Sutai pig with Yunan black pig was the best of all for contents of six species of unsaturated fatty acids of F1 individuals(P＜0.05).Yunan Black pig had good meat quality for its rich,fresh flavor amino acid and unsaturated fatty acid.The effect on the crossbred of Sutai pig with Yunan Black pig came out to be excellent,while certain meat trait effect of crossbreeding between Duroc or Berkshire boar and Yunan Black pig was meritorious.The results of this study could provide some theoretical support and guidance for the development of Yunan Black pig production.
Yunan Black pighybridmeat traitamino acid compositionfatty acid composition
国家科技期刊平台
NSTL
万方数据
维普
