台灣中大型豬場母豬繁殖資料分析

Reproductive Performance Data Analysis of Medium to Intensive Pig Farms in Taiwan

鄭文峰(Wen-Feng Cheng) ； 徐摩西(Moses Hsu) ； 廖培志(Pei-Chih Liao) ； 鍾文彬(Wen-Bin Chung)

《臺灣獸醫學雜誌》 28卷2期 (2002/06) Pp. 117-124

https://doi.org/10.7009/TVJ.200206.0117

摘要

To understand the reproductive performance of sows in Taiwanese pig farms, data collected from 11 pig farms using the PigCHAMP® software in the year 2000 in Taiwan was analyzed Results demonstrated that the average number of pigs weaned per sow per year was only 16.7 with a difference of 6.3 pigs between the best and the worst pig farms. The high mortality of 20.6% in nursery, fattening and finishing pigs resulted in only 13.6 pigs were slaughtered per sow per year. Statistical analysis indicates that sows with higher number of piglets born alive, 3rd to 8th parities, lactation length between 18-24 days, and weaning-to-estrus intervals of ≦10 days had significantly higher (P＜0.05) numbers of pigs weaned per sow per year than those by other sows. An average of 16% of mated females returned to estrus with 50.1% exhibiting a regular return to services. Among the mated animals returned to estrus, 25.3% were gilts. The mean farrowing rate for all mated females was 76.1% with gilts having the lowest rate of 71.0%. Among the females that failed to farrow, 64.3% were due to return to estrus. The above results indicate that a significant progress can be achieved if efforts are made to improve the reproductive performance of sows in Taiwan.

關鍵字

繁殖性能 ； 母豬 ； 台灣

並列摘要

To understand the reproductive performance of sows in Taiwanese pig farms, data collected from 11 pig farms using the PigCHAMP® software in the year 2000 in Taiwan was analyzed Results demonstrated that the average number of pigs weaned per sow per year was only 16.7 with a difference of 6.3 pigs between the best and the worst pig farms. The high mortality of 20.6% in nursery, fattening and finishing pigs resulted in only 13.6 pigs were slaughtered per sow per year. Statistical analysis indicates that sows with higher number of piglets born alive, 3rd to 8th parities, lactation length between 18-24 days, and weaning-to-estrus intervals of ≦10 days had significantly higher (P＜0.05) numbers of pigs weaned per sow per year than those by other sows. An average of 16% of mated females returned to estrus with 50.1% exhibiting a regular return to services. Among the mated animals returned to estrus, 25.3% were gilts. The mean farrowing rate for all mated females was 76.1% with gilts having the lowest rate of 71.0%. Among the females that failed to farrow, 64.3% were due to return to estrus. The above results indicate that a significant progress can be achieved if efforts are made to improve the reproductive performance of sows in Taiwan.

並列關鍵字

Reproductive performance ； Sows ； Taiwan