宁夏农垦万只商品肉羊生产场羊群结构的优化与设计  

Optimization and Designing of Sheep Herd Structure of Com-mercial Ten Thousand-Mutton Sheep Farm in Ningxia Agricultural and Cultivation Bureau

作　　者：王永军[1] 田秀娥[1] 陈玉林[1] 郭义昆[1] 马保华[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《西北农业学报》2003年第4期20-23,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：宁夏重大产业化项目"肉羊产业化综合配套技术研究与示范"资助。

摘　　要：为了稳步推进宁夏农垦企业集团百万肉羊产业化生产,笔者结合宁夏农垦生产实际,在既充分考虑宁夏农垦百万肉羊良种繁育和杂交利用体系的总体建设方案和现有建设实际,又紧密结合商品肉羊生产场目前技术力量和实际生产水平的前提下,提出了宁夏农垦万只商品肉羊生产场羊群结构优化与设计的具体方案:优秀种公羊50只,占羊只总数的0.5%,其中6月龄、1岁、2岁、3岁、4岁、5岁公羊分别占公羊总数的24%、18%、16%、16%、14%、12%;二元杂交母羊9950只,占羊只总数的99.5%,其中6月龄、1岁、2岁、3岁、4岁、5岁、6岁母羊分别占母羊总数的18.3%、16.4%、15.6%、14.5%、13.2%、11.8%、10.2%。To stably developing million-mutton sheep production of Ningxia Agricultural and Cultivation Bureau, optimization and designing of sheep herd structure of commercial ten thousand-mutton sheep farm in Ningxia Agricultural and Cultivation Bureau was put forward based on characteristics in Ningxia Agricultural and cultivation system, combining general construction of breeding and reproduction of pure-breed sheep and crossbreeding as so as present construction base with current technology base and production level. The number of purebreed ram is 50 and is 0.5% of total. The percentage of 1/2, one, two, three, four and five year old ram is 24% 18% 16% 16% 14% and 12%, respectively; The number of crossbreed ewe is 9950 and is 99.5% of total. The percentage of 1/2, one, two, three, four, five and six year old in ewe is (18.3)% 16.4% 15.6% 14.5% 13.2% (11.8)%and 10.2%, respectively.

关 键 词：宁夏 农垦企业 商品肉羊生产场 羊群结构 优化 设计 

分 类 号：S826[农业科学—畜牧学]