芒果视频下载

漢中(zhong)白(bai)豬(zhu)(zhu)簡稱(cheng)漢白(bai)豬(zhu)(zhu)，主產于陜西省漢中(zhong)地區(qu)，屬向(xiang)脂型豬(zhu)(zhu)種.主要用蘇(su)白(bai)豬(zhu)(zhu)、巴(ba)克夏(xia)豬(zhu)(zhu)和漢江(jiang)黑豬(zhu)(zhu)雜(za)交培(pei)育而成。現有豬(zhu)(zhu)種多分布于漢中(zhong)市、南(nan)鄭縣和城固縣等地、漢中(zhong)白(bai)豬(zhu)(zhu)適應性(xing)強、生長快(kuai)、耐粗(cu)飼、嗣體品質好。該品種豬(zhu)(zhu)頭中(zhong)等大.面(mian)微凹，耳中(zhong)等大小(xiao).向(xiang)上(shang)向(xiang)外伸展。背腰平直，腿(tui)臀(tun)較豐滿。

產地環境與分布

漢(han)(han)(han)中(zhong)白(bai)豬主產區(qu)漢(han)(han)(han)中(zhong)市位于(yu)北亞熱(re)帶，地處東經106°51~107°10、北緯33°2~33°22之(zhi)間，屬亞熱(re)帶氣候。氣候溫暖，雨(yu)量充沛，土壤肥沃，農(nong)業(ye)發達(da)。年(nian)(nian)平均(jun)氣溫14.3℃，降雨(yu)量 871.8 ，生態環境良(liang)(liang)好(hao)，主要作物(wu)有水稻、小麥、玉米(mi)、甘薯、油(you)菜等，農(nong)副(fu)產品(pin)豐富，青綠(lv)飼(si)料(liao)(liao)常年(nian)(nian)種植(zhi)，四(si)季不斷，為育(yu)成漢(han)(han)(han)白(bai)豬提供良(liang)(liang)了好(hao)的(de)飼(si)料(liao)(liao)條件。主要分(fen)布(bu)于(yu)漢(han)(han)(han)中(zhong)市、漢(han)(han)(han)中(zhong)縣(xian)、勉縣(xian)、南鄭、城固(gu)、洋(yang)縣(xian)、西鄉、寧強、鎮巴、留壩等市、縣(xian)。

品種特征

中(zhong)(zhong)為脂肉(rou)兼用型(xing)。 被毛全白(bai)(bai)，膚(fu)(fu)色全白(bai)(bai),部分眼圈皮膚(fu)(fu)有(you)小(xiao)塊(kuai)黑斑(ban)，母豬無鬃毛，少數公(gong)豬有(you);體(ti)型(xing)較大，體(ti)質結(jie)(jie)實(shi)，結(jie)(jie)構呈長方形(xing);頭(tou)大小(xiao)適中(zhong)(zhong)，面(mian)側微凹，額部無皺紋，嘴筒中(zhong)(zhong)等(deng);耳(er)中(zhong)(zhong)等(deng)大小(xiao)，前沖，不下垂;體(ti)軀長，背腰平直(zhi)，腹部下垂不明(ming)顯，臀(tun)部豐(feng)滿度適中(zhong)(zhong);有(you)效乳(ru)頭(tou)6對以(yi)上，排列整齊均勻;四肢(zhi)結(jie)(jie)實(shi)，粗(cu)壯，肢(zhi)勢(shi)正(zheng)常;尾根粗(cu)，高。肋骨7對;公(gong)豬無獠牙。

繁殖性能

小(xiao)公(gong)(gong)(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)110日(ri)齡(ling)、體(ti)重(zhong)(zhong)40公(gong)(gong)(gong)(gong)(gong)斤(jin)(jin)左(zuo)右時(shi)(shi)出(chu)(chu)現(xian)爬跨行為(wei)，小(xiao)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)120月(yue)齡(ling)、體(ti)重(zhong)(zhong)35~40公(gong)(gong)(gong)(gong)(gong)斤(jin)(jin)時(shi)(shi)出(chu)(chu)現(xian)第一(yi)(yi)(yi)(yi)次發(fa)情。公(gong)(gong)(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)10月(yue)齡(ling)、體(ti)重(zhong)(zhong)100公(gong)(gong)(gong)(gong)(gong)斤(jin)(jin)以(yi)上(shang)，母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)8月(yue)齡(ling)體(ti)重(zhong)(zhong)90公(gong)(gong)(gong)(gong)(gong)斤(jin)(jin)左(zuo)右時(shi)(shi)開始配種。繁(fan)殖利用年限，公(gong)(gong)(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)一(yi)(yi)(yi)(yi)般(ban)(ban)為(wei)4年，母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)為(wei)6年。母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)發(fa)情周期一(yi)(yi)(yi)(yi)般(ban)(ban)為(wei)21 天(tian)，發(fa)情持續期，經產(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)2~3天(tian)，初產(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)4~5天(tian)，斷乳(ru)后發(fa)情時(shi)(shi)間為(wei)7天(tian)左(zuo)右。經產(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)(17頭(tou))排卵數16.06±2.77枚(mei)。妊娠期115.43±2.8天(tian)。公(gong)(gong)(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)一(yi)(yi)(yi)(yi)次射精量 300~500毫升，精子活力0.7以(yi)上(shang)，密度中等(deng)(2億(yi)左(zuo)右)。初產(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)(215窩)平均(jun)產(chan)(chan)仔數9.76頭(tou);經產(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)(173窩)平均(jun)產(chan)(chan)仔數11.4頭(tou)，仔豬(zhu)(zhu)(zhu)(zhu)20日(ri)齡(ling)窩重(zhong)(zhong)41.46公(gong)(gong)(gong)(gong)(gong)斤(jin)(jin)，60日(ri)齡(ling)斷乳(ru)窩重(zhong)(zhong)108.4公(gong)(gong)(gong)(gong)(gong)斤(jin)(jin)。