| 缩短非生产天数对提高母猪年生产力的影响 |
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| 引用本文： | 李瑞珍,张丽红.缩短非生产天数对提高母猪年生产力的影响[J].山西农业科学,2013(12):1391-1393,1415. |
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| 作者姓名： | 李瑞珍 张丽红 |
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| 作者单位： | [1]山西省农业科学院农业资源与经济研究所,山西太原030006 [2]山西省农业科学院饲料科技研究中心,山西太原030006 |
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| 摘 要： | 在养猪生产中,母猪的繁殖效率是养猪业的关键环节,其水平的高低是以母猪的年生产力即母猪每年所提供的断奶仔猪数来衡量的。母猪年生产力的影响因素很多,涉及到断奶仔猪成活率、妊娠天数、哺乳天数、返情发生比率、断奶与配种间隔以及断奶仔猪数等相关指标。通过对养猪生产中母猪年生产力和非生产天数这2个关键指标的概念进行解析,找出母猪非生产天数增加的主要原因,以及缩短非生产天数对母猪生产的影响及实际意义,并详细阐述了母猪非生产天数的综合控制技术及其相关内容。
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| 关 键 词： | 母猪 年生产力 非生产天数 |
Influence of Nonproduction Time Shortening to Improve the Productivity in Sow |
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| LI Rui-zhenI,ZHANG Li-hong.Influence of Nonproduction Time Shortening to Improve the Productivity in Sow[J].Journal of Shanxi Agricultural Sciences,2013(12):1391-1393,1415. |
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| Authors: | LI Rui-zhenI ZHANG Li-hong |
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| Institution: | 2 ( l.Institute of Agricultural Resources ＆ Economics, Shanxi Academy of Agricultural Sciences, Taiyuan 030006, China; 2.Research Center of Feed Science ＆ Technology, Shanxi Academy of Agricultural Sciences, Taiyuan 030006, China) |
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| Abstract: | Sow reproductive rate is a key hnk in the pig industry and sow productivity is represented by the the number of weaned piglets in a year. Many factors affect the productivity of sows, concernning the survival.rate of weaned piglets, days of pregnancy, lactation days, returnning correlation index ratio, weaning and mating interval and the number of piglets weaned, This paper, through the concept analysis of the pig production and nonproduction time sow productivity two key indicators, approached the main causes for the increase of sow nonproduction days, and the reduced nonproduction days on sow production and the practical significance, and elaborated the sow nonproductive day number integrated control technology and its related content. |
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| Keywords: | sow annual productivity nonproductive days |
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