%0 Journal Article
%T Studies of Chromosomal Heredity and Fertility of Progenies (2n=49) Crossed between River and Swamp Buffalo<br>河流型水牛与沼泽型水牛杂交后代(2n=49) 染色体遗传与繁殖力的研究 Studies of Chromosomal Heredity and Fertility of Progenies (2n=49) Crossed between River and Swamp Buffalo
%A You-Jun Huang
%A Jiang-Hua Shang
%A Meng-Mei Liang
%A Xiu-Fang Zhang
%A Fen-Xiang Huang
%A <br>黄右军
%A 尚江华
%A 梁梦玫
%A 张秀芳
%A 黄芬香HUANG You-Jun
%A SHANG Jiang-Hua
%A LIANG Meng-Mei
%A ZHANG Xiu-Fang
%A HUANG Feng-Xiang
%J 遗传
%D 2003
%I 
%X After analysis of reproduction records of two types of karyotypes (2n=50 & 2n=49) of triple crossbreed buffaloes (TCB) and studies of synaptinemal complex and sperm chromosome of 2n=49 TCB, the results showed that 2 sorts of normal gametes (n=24 and n=25) and 2 sorts of abnormal gametes (n=24+1 and n=25-1) were produced in 2n=49 TCB. Thus, both male and female of 2n=49 TCB are reproducible, and chromosomal polymorphyism (2n=50, 2n=49 & 2n=48) occurred in the progenies after intermating. But its fertility decreased because of aneuploidy combined between normal and abnormal gametes. Compared with 2n=50 TCB, the conception rates for individual inseminations and for whole year reduced 12.3% and 6.4%, calving interval were prolonged by 97.6 days, and calf numbers in its lifetime (up to 11-year old) were lower by approximate 1.5 calves, respectively.
%K triple crossbreed buffalo (TCB)
%K division of chromosome
%K fertility
%K abnormal gamete<br>河流型水牛
%K 沼泽型水牛
%K 杂交后代
%K 三品种杂交水牛
%K 2n=49核型
%K 染色体分离
%K 繁殖力
%K 异常配子
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=3E23F50E071DF18E21B2F5AEE4F1FA5E&aid=365F1129EBD5A137&yid=D43C4A19B2EE3C0A&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=7CE3F1F20DE6B307&eid=BA79719BCA7341D5&journal_id=0253-9772&journal_name=遗传&referenced_num=1&reference_num=8