本文選題：蕨麻豬 + 太蕨豬　； 參考：《西北農(nóng)林科技大學(xué)》2017年碩士論文

【摘要】：蕨麻豬肉質(zhì)鮮嫩,含有豐富的營(yíng)養(yǎng)物質(zhì),是唯一含有碳酸酐酶的豬種,受到廣大消費(fèi)者的喜愛(ài),但蕨麻豬生長(zhǎng)速度慢,瘦肉率低,養(yǎng)殖成本高,市場(chǎng)受眾面積小,因此,為進(jìn)一步推動(dòng)蕨麻豬廣泛市場(chǎng)化,提高蕨麻豬生產(chǎn)效率,選用國(guó)內(nèi)外優(yōu)秀豬種,對(duì)蕨麻豬進(jìn)行雜交改良是解決這一生產(chǎn)困境的重要措施。本研究以蕨麻豬為研究對(duì)象,用太湖和巴克夏公豬分別與蕨麻豬配種雜交,對(duì)兩種雜交組合豬(太蕨豬和巴蕨豬)的生長(zhǎng)狀況、體尺指標(biāo)、育肥性能、胴體性能和肉質(zhì)性能進(jìn)行對(duì)比研究,以期為蕨麻豬的雜交改良提供科學(xué)依據(jù),為蕨麻豬的創(chuàng)新利用提供理論支持。通過(guò)對(duì)太蕨豬和巴蕨豬重要經(jīng)濟(jì)性狀研究,結(jié)果表明:1、哺乳期生長(zhǎng)狀況對(duì)比:巴蕨豬初生重顯著高于太蕨豬(P0.05),巴蕨豬生長(zhǎng)速度顯著快于太蕨豬(P0.05)。2、體尺指標(biāo)對(duì)比:巴蕨豬體高和體長(zhǎng)顯著高于太蕨豬(P0.05)。3、育肥性能對(duì)比:巴蕨豬平均日增重顯著高于太蕨豬(P0.05),太蕨豬料肉比顯著高于巴蕨豬(P0.05),巴蕨豬育肥性能優(yōu)于太蕨豬。4、胴體性能對(duì)比:巴蕨豬胴體瘦肉率和腿臀比例顯著高于太蕨豬(P0.05),巴蕨豬眼肌面積極顯著高于太蕨豬(P0.01)。5、肉質(zhì)性能對(duì)比:(1)太蕨豬肉色顯著好于巴蕨豬(P0.05),巴蕨豬肌肉剪切力顯著低于太蕨豬(P0.05),巴蕨豬肉質(zhì)更為細(xì)嫩。(2)巴蕨豬肉蛋氨酸、組氨酸、必須氨基酸含量顯著高于太蕨豬(P0.05)。(3)太蕨豬肉多不飽和脂肪酸含量顯著低于巴蕨豬(P0.05),巴蕨豬肉保健價(jià)值更好。(4)巴蕨豬肌纖維直徑顯著小于太蕨豬(P0.05),巴蕨豬肌肉嫩度更好。(5)太蕨豬背最長(zhǎng)肌中MyHCⅠ基因mRNA表達(dá)量顯著高于巴蕨豬(P0.05),巴蕨豬MyHCⅡx基因mRNA表達(dá)量顯著高于太蕨豬(P0.05),巴蕨豬MyHCⅡb基因mRNA表達(dá)量極顯著高于太蕨豬(P0.01)。綜上所述,巴蕨豬生產(chǎn)性能較好,料肉比相對(duì)較低,肉質(zhì)營(yíng)養(yǎng)和保健價(jià)值較優(yōu),食用口感更佳,經(jīng)濟(jì)效益高,用巴克夏公豬改良蕨麻豬效果相對(duì)較好。
[Abstract]:Fern hemp pig is the only pig species with carbonic anhydrase, which is fresh and tender in meat quality and rich in nutrients. It is popular among consumers. However, fern hemp pig has a slow growth rate, low lean meat rate, high breeding cost and small market area. In order to further promote the wide marketization of fern hemp pigs and improve the production efficiency of fern hemp pigs, it is an important measure to solve this production dilemma to select excellent pig breeds at home and abroad and to improve the crossbreeding of fern hemp pigs. In this study, fern hemp pigs were used to crossbreed with fern pigs by Taihu and Baxia boars, respectively. The growth status, body size index and fattening performance of two hybrid pigs (Taifern pig and Badien pig) were studied. The comparative study on carcass performance and meat quality was carried out in order to provide scientific basis for crossbreeding improvement of fern hemp pigs and theoretical support for innovative utilization of fern hemp pigs. In this paper, we studied the important economic characters of Taitian pig and Badian pig. The results showed that the birth weight of the fern pig was significantly higher than that of P0.05, and the growth rate of the fern pig was significantly faster than that of P0.05. 2. The comparison of body size index showed that the body height and body length of the fern pig were significantly higher than that of P0.05. 3, and the growth rate of the fern pig was significantly higher than that of the white fern pig P0.05. 3, and the growth rate of the fern pig was significantly faster than that of the Taifern pig. The average daily gain of the fern pigs was significantly higher than that of the Taifern pigs (P0.05N), the feed / meat ratio of the Taifern pigs was significantly higher than that of the P0.05s of P0.05, and the fattening performance of the fern pigs was better than that of the Tai-fern pigs .4.The carcass performance was significantly higher than the carcass lean percentage and the ratio of legs and buttocks of the fern pigs. The area of eye muscle of P0. 05 was significantly higher than that of P0. 01. 5, and the meat quality was compared with that of P0. 01. 5) the color of Taifern was better than that of P0. 05, the shear force of muscle of P0. 05 was significantly lower in P0. 05 than that of P0. 05, and the quality of P0. 02 was more finer than that of P0. 2) the content of Met methionine was higher than that of P0. 05. Histidine, The content of essential amino acids was significantly higher than that of P0.05%. 3) the content of polyunsaturated fatty acids in Pteris fern pork was significantly lower than that in P0. 05% of P0. 05%, and the value of health care was better. 4) the diameter of muscle fiber of Pteris fern was significantly smaller than that of P0. 05%, and the muscle tenderness of Pteris fern was significantly lower than that of P0. 05%. The mRNA expression of MyHC 鈪，

本文編號(hào)：1900962