新疆牦牛
(本站編輯8tdc.com.cn)新(xin)疆牦(mao)牛(niu)(niu)主要分布(bu)在天山南麓(lu)的(de)阿爾金山、昆侖山、帕米爾高(gao)原。海拔2400~4000米的(de)高(gao)山地帶,東天山的(de)哈密(mi)等地也有(you)(you)少量(liang)分布(bu)。總頭數為(wei)(wei)16萬多(duo)頭。牦(mao)牛(niu)(niu)數偶蹄(ti)目牛(niu)(niu)科,全(quan)身披(pi)長毛(mao)(mao),特別是脖頸、前胸和(he)腹部(bu)毛(mao)(mao)長20~30厘米。牦(mao)牛(niu)(niu)又稱犁(li)牛(niu)(niu)。它和(he)黃牛(niu)(niu)雜交所產(chan)(chan)的(de)牛(niu)(niu)叫(jiao)犏牛(niu)(niu),犏牛(niu)(niu)和(he)騾子一(yi)樣沒(mei)有(you)(you)生育能(neng)力。牦(mao)牛(niu)(niu)生活在高(gao)寒(han)地區,自然條件比較(jiao)嚴酷,植(zhi)被多(duo)為(wei)(wei)高(gao)寒(han)荒漠草(cao)場,牧草(cao)稀少,但牦(mao)牛(niu)(niu)適應了這種(zhong)條件。牦(mao)牛(niu)(niu)頭粗重(zhong),額短寬,眼圓大稍突出。額毛(mao)(mao)密(mi)而卷曲,牙小。大多(duo)有(you)(you)角,兩角細長向(xiang)外。毛(mao)(mao)色以黑色、褐色、灰色為(wei)(wei)主,其次(ci)為(wei)(wei)黑白花及(ji)紅白花斑,偶見(jian)白色。成年(nian)公(gong)(gong)牦(mao)牛(niu)(niu)一(yi)般(ban)(ban)(ban)體(ti)高(gao)110~128厘米,體(ti)重(zhong)288~300公(gong)(gong)斤(jin)(jin);成年(nian)母牦(mao)牛(niu)(niu)一(yi)般(ban)(ban)(ban)體(ti)高(gao)105~110厘米,體(ti)重(zhong)210公(gong)(gong)斤(jin)(jin)左右。母牛(niu)(niu)一(yi)般(ban)(ban)(ban)擠乳四(si)個月,平(ping)均(jun)(jun)產(chan)(chan)乳量(liang)2.56公(gong)(gong)斤(jin)(jin);屠宰率(lv)一(yi)般(ban)(ban)(ban)在47%~59%;年(nian)產(chan)(chan)毛(mao)(mao)量(liang)均(jun)(jun)為(wei)(wei)1.34公(gong)(gong)斤(jin)(jin);役(yi)用性能(neng)好,一(yi)般(ban)(ban)(ban)可(ke)馱載70~100公(gong)(gong)斤(jin)(jin),日行30~40公(gong)(gong)里。公(gong)(gong)母犢兩歲半到三歲配種(zhong)。成活率(lv)平(ping)均(jun)(jun)為(wei)(wei)90%,個別群(qun)可(ke)達(da)100%。(本文結(jie)束)
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