Research On The Meat Trait Of Yili Horse

This study selects the healthy and medium body condition of Yili horse from Zhaosu,Xinjiang. Neck muscle, Psoas major and Longissimus dorsi are collected after slaughter. Throughdetermining the Yili horse slaughter performance, edible quality, conventionalnutrients and amino acids, and through difference analysis, the specific results are as follows:(1) Slaughter performances: Yili horse has good slaughter performance. Slaughter Weight canbe369.29kg for adult horses, Carcass Weight can be195.14kg and net meat weight can be147.93kg. Slaughter weight, Carcass Weight, Net Meat Weight, Chest Girth and Eye Muscle Areawere significantly different between1to3-year-old group and4to6-year-old groups (P<0.01).The indexes of Chest Girth, Body Length, Withere Height and Eye Muscle Area have significanteffects on slaughter performances in different age groups of Yili horse (P<0.05)..(2) Edible quality: Through otherness analysis of edible quality in Neck muscle, Psoas majorand Longissimus dorsi at different age groups of Yili horse, no statistically significant differencesin cooked meat rate in three parts of muscle were recorded within the scope of age what has beendetermined (P>0.05). Water holding capacity, Warner-Bratzler Shear Force on cooked meat,color and PH are effected mainly by age. Along with the increase of age, the shear force has alsoimproved.(3) Nutrition quality: Water, protein,water/protein and energy in Longissimus dorsi andPsoas major were significantly different between1to2year-old group and other twogroups(P<0.01), no statistically significant differences in ash content were recorded between1to2year-old group and other two groups (P>0.05). Ash content in Neck muscle was significantlydifferent between1to2year-old group and other two groups (P<0.01). Moisture content in Neckmuscle was significantly different between5to6year-old group and other two groups (P <0.05).In general, horseflesh of Yili horse has preferable nutritional value at5to6years old.(4) Amino acids analysis: Through determining and analysis of common amino acids in Neckmuscle, Psoas major and Longissimus dorsi in Yili horse,we found that Neck muscle has the lowest amino acids contents, essential amino acid content in Psoas major were significant higherthan them in Neck muscle (P<0.01), and were significant higher than them in Longissimus dorsi(P<0.05). For Non-essential amino acids, the content in Psoas major were significant higher thanthem in Neck muscle and Longissimus dorsi (P<0.01). No statistically significant differences inNon-essential amino acids content were recorded between Neck muscle and Longissimus dorsi(P>0.05), and flavour in Psoas major is better than two others. On balance, amino acids in Psoasmajor has the highest quality in three parts of tested muscle.