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Glutinous rice pig (aka Yellow hog) is a type of our excellent local breeds Coke pig. Excellent (its meat fresh and waxy, named glutinous rice pig), adaptability, loved by consumers, and has broad market prospects. However, due to the small size, fast growth rate is less than the outer crossbred commercial pigs, continue to suffer the impact of the imported breeds, and its size has been getting smaller and smaller, its good genes will gradually disappear. In December 2005, according to the Nayong County Animal Husbandry Bureau of Statistics report showed that: glutinous rice swine existing bar more than 1,500 head, of which 29 adult boar can be complicated sow 253 entire pig population accounted for only waxy Valley the Nayong County local breeds 14 percent. Therefore, to protect the pig is very important. Characteristics of the research on the the glutinous rice swine germplasm, including the reproductive performance of fattening and carcass traits and meat quality traits, blood biochemical indices and productive, FSHβ gene polymorphism loci and glutinous rice pig parts reproductive performance study, the results showed that: in reproductive performance: the glutinous rice swine sow litter size is 9.82 ± 1.21 head, litter number born alive weight 7.14 to 9.64 ± 1.91 head, newborn nest ± 1.85kg, the average birth weight of 0.73 ± 0.07kg, average weaning weight of 12.81 ± 2.45kg, weaning age was 46.68 ± 8.60d, weaning survival of 9.12 ± 2.07 head, lactation force (21d) 26.5 ± 3.2kg . Compared with local varieties in Guizhou, litter size and number born alive Guanling pig close higher than the sword white pig and black hair types cola pig; the nascent body weight is higher than the Guanling pig Jianbai miniature pig, low Coke pig; weaning weight than the three varieties in the type of black hair. Compared with exotic species, litter size number, nest number born alive introduced with foreign varieties are similar, but the newborn weight was significantly lower than the introduction of varieties abroad. Finishing performance and carcass quality measurement results: average weight of 12.283kg glutinous rice pig fattening after a period of 180 days, up to 76.822kg. Highest daily gain when 6-7 months of age, the full feed conversion ratio was 3.5:1. Waxy Valley pig slaughter was 74.46% and 45.3%, lean, average backfat thickness 3.49cm, carcass fat was 36.28%, the skin was 9.51%, thick-skinned 3.96mm, bone was 9.22%, 6-7 rib back fat thickness 4.17cm, eye muscle area of ??24.64 cm to 2. Compared to some domestic local pig breeds, most indicators of difference is not obvious, reflects the pig fattening performance and carcass quality of waxy Valley and other places of similar breeds, showed slower growth, feed conversion rate, lean low fat high. Individual indicators, but there is a big difference, such as fat thickness and thick skin are higher than the local varieties of Jinhua pigs and other domestic; slaughter was 74.46%, higher than the Taihu pig (65% -70%), Jinhua pigs (72%), Rongchang pigs (69%) and other local varieties, 74% and 73.1% of foreign varieties Duroc and Pietrain quite. 3 succulent measurement results showed that: the flesh-colored composite score of 3.5 points, marbling score 3 points, intramuscular fat was the right amount distributed; pH value of 6.3, the water loss rate of 15.49%, the cooked meat was 63.73%, the tenderness 2.92 ± 0.23kg, Description Waxy Valley pork has suitable pH, normal flesh color and marbling and cooked meat rate, higher characteristic; intramuscular fat content was 3.83 ± 1.03%, in the ideal range. The blood test results show that the physiological and biochemical indexes: the glutinous rice Pig physiological and biochemical indices were within the normal range. The correlation analysis showed that daily gain and TG was significantly negatively correlated (P <0.05), the correlation coefficient is -0.89, pH and TG showed a significant positive correlation (P <0.05), the correlation coefficient was 0.87. Lean and Crea was a significant negative correlation (P <0.05), the correlation coefficient was -0.93. These early indicators glutinous rice pig breeding and better carry out hybrid use of some scientific basis. 5.FSHβ gene polymorphism: glutinous rice pig the FSHβ genotype PCR amplification product of three with type: 500bp 500/220bp and 220bp, respectively named AA genotype, AB, BB, the results of this study show that, each number of genotypes BB type> AB> AA, BB is the predominant genotype advantage allele B. Glutinous rice pig sow reproductive traits FSHβ gene genotype BB favorable genotype BB type litter size than the AA genotype 1.82 number born alive than the AA genotype 1.48.
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