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漢中(zhong)白(bai)豬(zhu)簡稱漢白(bai)豬(zhu)，主產于陜(shan)西省漢中(zhong)地區，屬向(xiang)脂型豬(zhu)種.主要用(yong)蘇白(bai)豬(zhu)、巴(ba)克夏豬(zhu)和漢江黑豬(zhu)雜交培育而成(cheng)。現有豬(zhu)種多分布(bu)于漢中(zhong)市、南鄭縣(xian)和城固縣(xian)等(deng)地、漢中(zhong)白(bai)豬(zhu)適應性強、生長快、耐粗(cu)飼(si)、嗣體品(pin)質好。該品(pin)種豬(zhu)頭中(zhong)等(deng)大(da).面(mian)微凹(ao)，耳中(zhong)等(deng)大(da)小.向(xiang)上向(xiang)外伸展。背腰平(ping)直(zhi)，腿臀較豐滿。

產地環境與分布

漢(han)中(zhong)(zhong)白豬主產(chan)區漢(han)中(zhong)(zhong)市位于北亞(ya)熱帶，地(di)處東經106°51~107°10、北緯33°2~33°22之間，屬亞(ya)熱帶氣(qi)候。氣(qi)候溫暖，雨量(liang)充沛，土壤肥沃(wo)，農(nong)業發達。年平均氣(qi)溫14.3℃，降雨量(liang) 871.8 ，生態環境良好(hao)，主要作物有水稻、小麥、玉(yu)米、甘薯(shu)、油菜(cai)等(deng)，農(nong)副(fu)產(chan)品(pin)豐富(fu)，青綠飼(si)料常年種植，四季不斷，為(wei)育成漢(han)白豬提供良了好(hao)的(de)飼(si)料條(tiao)件。主要分布于漢(han)中(zhong)(zhong)市、漢(han)中(zhong)(zhong)縣、勉縣、南鄭(zheng)、城固(gu)、洋縣、西鄉、寧(ning)強、鎮(zhen)巴、留壩等(deng)市、縣。

品種特征

中為脂肉兼用型(xing)(xing)。 被毛(mao)全白(bai)，膚(fu)色全白(bai),部分(fen)眼圈皮(pi)膚(fu)有(you)小(xiao)塊黑斑，母(mu)豬(zhu)(zhu)無(wu)鬃毛(mao)，少數公豬(zhu)(zhu)有(you);體型(xing)(xing)較大，體質結實，結構呈長(chang)(chang)方形;頭大小(xiao)適(shi)中，面側微凹(ao)，額部無(wu)皺紋，嘴筒(tong)中等;耳(er)中等大小(xiao)，前沖，不(bu)下(xia)垂;體軀長(chang)(chang)，背(bei)腰平(ping)直(zhi)，腹(fu)部下(xia)垂不(bu)明(ming)顯，臀(tun)部豐滿度適(shi)中;有(you)效乳頭6對以上，排(pai)列整齊(qi)均勻(yun);四(si)肢結實，粗壯，肢勢正常;尾根(gen)粗，高。肋骨7對;公豬(zhu)(zhu)無(wu)獠(liao)牙。

繁殖性能

小(xiao)公(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)110日齡(ling)(ling)、體(ti)重(zhong)(zhong)40公(gong)(gong)(gong)斤(jin)(jin)左右時(shi)出(chu)現(xian)爬跨行為，小(xiao)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)120月齡(ling)(ling)、體(ti)重(zhong)(zhong)35~40公(gong)(gong)(gong)斤(jin)(jin)時(shi)出(chu)現(xian)第(di)一(yi)次發情。公(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)10月齡(ling)(ling)、體(ti)重(zhong)(zhong)100公(gong)(gong)(gong)斤(jin)(jin)以上，母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)8月齡(ling)(ling)體(ti)重(zhong)(zhong)90公(gong)(gong)(gong)斤(jin)(jin)左右時(shi)開始配種。繁殖利用(yong)年限(xian)，公(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)一(yi)般為4年，母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)為6年。母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)發情周期一(yi)般為21 天(tian)，發情持續期，經產(chan)(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)2~3天(tian)，初(chu)產(chan)(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)4~5天(tian)，斷乳后發情時(shi)間為7天(tian)左右。經產(chan)(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)(17頭(tou))排卵數(shu)16.06±2.77枚。妊娠(shen)期115.43±2.8天(tian)。公(gong)(gong)(gong)豬(zhu)(zhu)(zhu)(zhu)一(yi)次射精量 300~500毫升，精子(zi)活力0.7以上，密度中等(2億左右)。初(chu)產(chan)(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)(215窩)平(ping)均產(chan)(chan)(chan)仔數(shu)9.76頭(tou);經產(chan)(chan)(chan)母(mu)(mu)豬(zhu)(zhu)(zhu)(zhu)(173窩)平(ping)均產(chan)(chan)(chan)仔數(shu)11.4頭(tou)，仔豬(zhu)(zhu)(zhu)(zhu)20日齡(ling)(ling)窩重(zhong)(zhong)41.46公(gong)(gong)(gong)斤(jin)(jin)，60日齡(ling)(ling)斷乳窩重(zhong)(zhong)108.4公(gong)(gong)(gong)斤(jin)(jin)。