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当前位置: 首页 > 文章 > 甘肃白猪3个专门化品系青年公母猪的性表现 甘肃农业大学学报 1999 (1) 45-49
Position: Home > Articles > The Sexual Expression of Young Period's Boar and Sow on Three Special Lines of Gansu White Pig Journal of Gansu Agricultural University 1999 (1) 45-49

甘肃白猪3个专门化品系青年公母猪的性表现

作  者：
段子渊
单  位：
甘肃农业大学动物生产工程系
关键词：
甘肃白猪;新品系;性表现;发情规律;适宜配种期
摘  要：
对甘肃白猪Ａ、Ｂ、Ｃ专门化新品系的青年公母猪各阶段性行为表现进行了测定，对同期３系后备猪群进行了配种前体质量测定和产后繁殖力性状的统计。结果表明：Ａ、Ｂ、Ｃ ３系的初情期为（１９０．８±３．２）ｄ，（２１７．０±４.０）ｄ和（１８０.２±５.１）ｄ，发情周期为（２１.５±２.８０）ｄ，（２２.０８±２．１１） ｄ和（２０.８２±２．５９） ｄ，发情持续期为 ５７．５ ｈ、 ４４.４ ｈ和 ７０．６ ｈ。 ３个系公猪的性活动早于同系母猪 ６～１０ｄ。 Ｃ系猪断奶后返情期短、返情率高， Ａ系居中， Ｂ系略长，返情率低于Ｃ、Ａ两系。Ａ、Ｃ系猪发情症状明显，以观察法即可掌握配种时机，Ｂ系以试情与观察相结合为宜。３系适宜的配种日龄与配种体质量为Ａ：２６０ｄ、１１０ｋｇ，Ｂ：２８０ｄ、１２０ｋｇ，Ｃ：２４０ｄ、９７ｋｇ。配种前体质量达成年猪体质量的 ６５％为宜。
译  名：
The Sexual Expression of Young Period's Boar and Sow on Three Special Lines of Gansu White Pig
作  者：
Duan Ziyuan (Departmeht of Animal Science, Gansu Agricultural University. Lanzhou 730070)
关键词：
Gansu White Pig; new line; sexual expression; estrous pattern, suitable matting age
摘  要：
The sexual expression of all kinds of sexual stage was determined to young period's boar and sow on A, B, C special lines of Gansu White Pig, and the body weight determination before matting and the postpartum reprodutivity traits messurement were also carried out to replacement gilt in same period. The results showed that puberties of A, B, C lines were (190.8±3.2) d, (217.0±4.0) d and (180.2±5.1) d, the estrous cycles were (21 .50±2.80) d, (22.08±2.11) d and (20.82±2.59) d, and the estrous duration were 57.5 h, 44.4 h and 70.6 h respectively. The boar pig sexual expression of 3 lines is earlier than same line sow with 6-10 days. The results suggested that C line's postpartum estrous was the earliest and the rate of return to estrous was the highest, A line was in middle and B was longer and lower than C, A. The estrous sign of A and C lines was obviously which could be used to decide the matting moment by observation. However, B line was proper to use teasing method combined with observation. It is concluded that body weight before matting was appropriate with 65 % of mature's and the suitable matting age and weight as follow:A 260 d, 110 kg, B 280 d, 120 kg and C 240 d, 97 kg.

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