簡介
渤海(hai)黑(hei)牛又稱“無(wu)棣抓地(di)虎黑(hei)牛”,是(shi)惠民地(di)區的優良牛種(zhong)(zhong)。其(qi)中心(xin)產區在小睡渤海(hai)的無(wu)棣及相鄰的陽信、沾化等縣。外貌特征(zheng)為:被毛、蹄、角。鼻鏡呈黑(hei)色,有洶(xiong)涌,低(di)身廣軀,后軀發達(da),結(jie)構(gou)勻(yun)稱;皮膚干燥且富有彈性(xing),體質健壯。因其(qi)重心(xin)低(di),挽(wan)力大,恒(heng)力強,能(neng)吃苦耐勞,幫(bang)當地(di)人稱之為“抓地(di)虎”。該牛性(xing)情溫馴,耐粗飼、易(yi)肥(fei)育,抗病(bing)能(neng)力強,遺(yi)傳性(xing)能(neng)穩定,具有良好的役、肉兼用特性(xing),是(shi)我(wo)國罕見的黑(hei)毛黃牛品種(zhong)(zhong)。
黃驊市、海(hai)(hai)興縣(xian)(xian)為鄰。最東點(dian)(dian)為老(lao)沾化溝入海(hai)(hai)口,東經118°12′,最西(xi)點(dian)(dian)為無棣(di)鎮(zhen)郎家村,東經117°31′,最大(da)(da)橫(heng)距60公(gong)里(li)(li)。最南(nan)(nan)點(dian)(dian)為無棣(di)鎮(zhen)郭(guo)家村,北(bei)緯(wei)37°41′,最北(bei)點(dian)(dian)為埕口鎮(zhen)大(da)(da)口河入海(hai)(hai)口,北(bei)緯(wei)38°187′,最大(da)(da)縱距70公(gong)里(li)(li)。面(mian)積1998.12平方(fang)公(gong)里(li)(li)。縣(xian)(xian)城東南(nan)(nan)距濱州市54.5公(gong)里(li)(li),西(xi)南(nan)(nan)距濟(ji)南(nan)(nan)130.5公(gong)里(li)(li),西(xi)北(bei)距北(bei)京(jing)260公(gong)里(li)(li)。無棣(di)縣(xian)(xian)屬北(bei)溫帶東亞季(ji)風區域大(da)(da)陸(lu)性氣(qi)候。具有(you)夏熱(re)多雨,冬(dong)寒季(ji)長,春季(ji)多風干燥,秋(qiu)季(ji)溫和(he)涼爽(shuang)的特點(dian)(dian)。
生長環境
無(wu)棣黑(hei)牛分布在山(shan)東(dong)省北(bei)(bei)部沿(yan)渤海(hai)(hai)(hai)(hai)地區的(de)無(wu)棣縣境內車鎮(zhen)、小(xiao)泊頭、碣(jie)石(shi)山(shan)、埕口、信陽(yang)、無(wu)棣鎮(zhen)、水灣、柳堡(bao)、佘家巷、馬(ma)山(shan)子、西(xi)小(xiao)王等(deng)11個(ge)鄉鎮(zhen),現有無(wu)棣黑(hei)牛2.7萬(wan)余頭。地理坐標(biao)為:東(dong)經117°31′~118°04′北(bei)(bei)緯37°41′~38°16′。無(wu)棣縣地貌屬華北(bei)(bei)平(ping)原(yuan)黃泛(fan)濫淤積平(ping)原(yuan),地勢(shi)自西(xi)南(nan)(nan)向東(dong)北(bei)(bei)傾斜(xie),西(xi)南(nan)(nan)高(gao)(gao),東(dong)北(bei)(bei)低,最高(gao)(gao)點在無(wu)棣鎮(zhen)西(xi)部,海(hai)(hai)(hai)(hai)拔8米,以萬(wan)分之一的(de)坡降向東(dong)北(bei)(bei)傾斜(xie)。沿(yan)海(hai)(hai)(hai)(hai)的(de)大口河,海(hai)(hai)(hai)(hai)拔為1.9米;沿(yan)海(hai)(hai)(hai)(hai)的(de)三里(li)臺、五里(li)臺高(gao)(gao)程(cheng)僅1米左(zuo)右。境內自西(xi)南(nan)(nan)向東(dong)北(bei)(bei)依(yi)次為黃泛(fan)平(ping)原(yuan)、濱(bin)海(hai)(hai)(hai)(hai)平(ping)原(yuan)和渤海(hai)(hai)(hai)(hai)灣海(hai)(hai)(hai)(hai)岸。
產品品質特(te)性特(te)征
無棣(di)黑(hei)(hei)牛被(bei)毛黑(hei)(hei)色或(huo)黑(hei)(hei)褐色,但允許腹下(xia)有(you)(you)少量白毛,蹄(ti)、角、鼻鏡(jing)為黑(hei)(hei)色。體質(zhi)結實(shi)(shi),結構緊湊。低身廣軀(qu),呈長(chang)(chang)方形,后(hou)軀(qu)較(jiao)發達。頭矩(ju)形,透鏡(jing)長(chang)(chang)度基本相等(deng);角輕小,多(duo)龍門角;胸寬深,背腰(yao)長(chang)(chang)寬平直,尻部較(jiao)寬、略顯方尻;四肢(zhi)開闊,肢(zhi)勢(shi)端正(zheng)有(you)(you)力,蹄(ti)質(zhi)細致堅實(shi)(shi)。公牛額(e)平直,眼大有(you)(you)神,頸短厚,肩(jian)部明顯。母牛清(qing)秀,面長(chang)(chang)額(e)平,四肢(zhi)堅實(shi)(shi)。是(shi)我國僅有(you)(you)的黑(hei)(hei)毛牛品種。
繁殖性能
在(zai)正常飼養(yang)管理條(tiao)件下,母牛初情期(qi)(qi)(qi)6月(yue)(yue)齡(ling)(ling)—10月(yue)(yue)齡(ling)(ling);適配年(nian)(nian)(nian)(nian)齡(ling)(ling)1.5歲;發情周期(qi)(qi)(qi)平均20.2天,發情持續期(qi)(qi)(qi)平均32.8小(xiao)時,妊(ren)娠期(qi)(qi)(qi)平均279.5天。產(chan)后(hou)首(shou)次發情期(qi)(qi)(qi)平均83.0天;多一年(nian)(nian)(nian)(nian)一胎或三年(nian)(nian)(nian)(nian)兩胎,利用(yong)年(nian)(nian)(nian)(nian)限8年(nian)(nian)(nian)(nian)—9年(nian)(nian)(nian)(nian);公(gong)牛適配年(nian)(nian)(nian)(nian)齡(ling)(ling)1.5歲—2歲,利用(yong)年(nian)(nian)(nian)(nian)限5年(nian)(nian)(nian)(nian)—7年(nian)(nian)(nian)(nian),0量平均5.47ml,精(jing)子數1.1×1010個/ml,精(jing)子活力0.7。