Research On The Hybridization Effects Between Boer Goats And Yulin Native Common Goats

Boer Goat is one of the finest meat goat breed, being a terminal cross father part it also has great advantage to the developing countries in the 21 century. It is a ideal variety of lamb meat production with big bodily form, fast growth speed, high butcher rate, fine meat quality, enduring careless raise.At present Boer Goat is introduced into many Africa countries, New Zealand, Germany, America, Canada and other countries obtaining upstanding effect in using to improve home meat goat. It has been introduced into our country from Germany since 1995. After then Boer Goat has enlarged rapidly from many places including Jiangsu, Shandong, Shaanxi, Shanxi, Sichuan, Guangxi, Guangdong, Jiangxi, Henan, Beijing and other provinces to the neighbour places, displaying the cross advantage of fine meat character, high economic value.Yulin, the important stock raising base, has fine nature condition, abundance land resources, big grass area, and rich forge grass resources. It has a long history to raise goat in Yulin. Goat raise has been a key industry in agriculture and rural economics in Yulin Since entering into the 21 century. The feeding size of goat will be 10000000 in total Yulin in 2010. The native goat north Shaanxi black goat industry is famous for its delicious meat, no smell and wide adaptability but has low production level and economic benefit for its small bodily form, slow growth speed, low butcher rate and traditional raise method.The item quests for the experiment of the native goat cross to Boer Goat in order to solve the problem of being short of fine varieties and to develop the goat industry. The research shows that Boer Goat grows in gear, the development speed and reproduction performance being no difference to the breeding field(p>0.05). It makes out that Boer Goat with fine adaptability in Yulin.The effect of different cross method show that the birth avoirdupois, ablactation avoirdupois, six months avoirdupois and one year avoirdupois of the male goat of F1 is heightened to 59.37%, 38.14%, 47.80%, 39.03% to the native male goat and the female goat is 56.74%, 40.26%, 45.45%, 53.34%, respectively. and that of F2 is 68.23%, 41.41%, 50.09%, 61.94% and 76.97%, 41.57%, 47.67%, 56.01%, respectivelyThe every phase length of goat body of Fl and F2 is longer that that of the home goat. The body weight and net meat weight of six-month Fl male goat are 10.14g and 7.84g, which is increased to 45.06% and 51.06% to that of the native male goat, and the difference is prominence(p<0.05)).The effect of different feed condition shows that the birth avoirdupois, ablactation avoirdupois, six months avoirdupois and one year avoirdupois of male goat shed feed group is increased to 3.73%, 0.97%, 17.96%, 9.57% respectively to the range group, and that of the female is 0.35%, 2.73%, 20.52%, 8.01%, respectively. The birth avoirdupois and ablactation avoirdupois of shed group is higher than that of the range group, the difference is not clear(p>0.05 ), but the difference to six months avoirdupois and one year avoirdupois is clear (p<0.05) .