Research On Meat Quality Of Huainan Swine

In this study,eight health,1±0.25 years old,artificial breed HuaiNan swines were selected randomly from Henan province Xinyang city Shihe district as sample and four health local white pigs were select as comparison.They were butchered together.By conventional and advanced apparatus,example for conventional method,the amino acids automatic analyzer,the atomic absorption spectrophotometer,the transmission electron microscope and so on.Some traits such as slaughtered performance,edible quality,nutrition ingredient,muscular tissue structure,fatty acid composition as well as volatile flavor material were tested and analysed.The results were showed that:1.The slaughter performances:the live weight of HuaiNan swine is 104.70Kg,the body high is 63.18cm,the body slanting long,the chest perimeter and the rate of dressed carcass produce are 124.96cm,109.46cmand 75.40%.All the slaughter targets are smaller than the local white pig respectively.2.Edible qualities:HuaiNan pork Dali grain grading,the muscle fiber diameter,the sheafing force are 3.70 minutes,14.50μm,5.38 kg/cm² respectively,which are lower than the local white pork significantly.Other edible quality target including the yellowish pink,the pH₁ value,the pH₂₄ value,the dehydration rate,the holding water power and the cooked meat percentage does not have the significance difference eith the local white pig pork.3.Nutrition components:The HuaiNan pork moisture content is 75.26%,which is extremely obviously higher than the local white pork,the fat is 3.46%,which is obviously lower than the local white pork,the protein is 20.50%,does not have the significance difference with the local white pig pork.The material content is 25.72%.The mineral substance content is rich,except K is 375.40 mg/100g,which is obviously lower than local white pork,Fe,Zn and Cu are all higher than in the local white pork content;The total amino acid,the essential amino acids content are 90.56g/100g,34.37g/100g,which are higher than the local white pig,amino acid score is higher the local white pig. 4.Muscular tissue structure:The HuaiNan swine myocomma length is 2.02μm,which is longer than local white pig for 0.262μm,therefore holding water power and tenderness are all high.5.fatty acid compositions:The HuaiNan swine muscle saturated fatty acid is 25.065%, the single unsaturated fatty acid is 45.657%,the multi-unsaturated fatty acid is 13.863%,the saturated fatty acid and single unsaturated fatty acid content of HuaiNan swine are both lower than the local white pig's,the multi-unsaturated fatty acid content is higher than the local white pig's content obviously.Because the unsaturated fatty acid has the obviously important physiological action,the HuaiNan swine muscle fat quality is good.