蘭嶼豬母豬繁殖性狀之探討

Investigation on the reproductive performance of Lanyu sows

張之維(Chei-Wei Chang) ； 朱賢斌(Hsien-Pin Chu) ； 林正鏞(Cheng-Yung Lin) ； 張俊達(Chun-Ta Chang)

《畜產研究》 46卷1期 (2013/03) Pp. 63-70

摘要

本試驗旨在探討蘭嶼豬豬母豬之生殖性能及其仔豬之生長性能。全程調查蘭嶼豬母豬共208胎，進行母豬分娩窩仔數、出生活仔數、出生死仔數、離乳活仔數、仔豬出生體重、6週齡離乳體重、育成率與每日平均增重等項目。結果顯示，蘭嶼豬母豬之NB及NBA隨著胎次增加而增加，於第5胎時達高峰，至第6胎後逐漸下降。而出生死仔數、離乳活仔數及每日平均增重於各胎次間並無顯著差異。經產母豬之出生活仔數、離乳活仔數、育成率及仔豬出生體重均極顯著高於初產母豬（P＜0.01），而初產母豬之初生死仔數、離乳體重及每日平均增重均顯著高於經產母豬。涼季配種之窩仔數、出生死仔數與出生體重極顯著高於熱季配種（P＜0.01）者，而熱季配種之育成率、離乳體重及每日平均增重極顯著高於涼季配種（P＜0.01）者。蘭嶼母豬之窩仔數與出生活仔數（0.82）及離乳活仔數（0.62）呈顯著正相關（P＜0.01），而與育成率（-0.20；P＜0.05）及出生體重（-0.29；P＜0.01）、離乳體重（-0.45；P＜0.01）、每日平均增重（-0.39；P＜0.01）呈顯著負相關。蘭嶼母豬之出生活仔數與離乳活仔數亦呈高度顯著正相關（0.79；P＜0.01），而與出生體重、離乳體重、每日平均增重（-0.29至-0.45；P＜0.01）呈顯著中度負相關。綜上所述，蘭嶼母豬之生殖性能及其仔豬隻生長性能受到胎次及配種季節影響。

關鍵字

蘭嶼豬 ； 胎次 ； 繁殖性能 ； 季節

並列摘要

The aim of this study was to investigate the reproductive performance of Lanyu sows and the growth performance of their piglets in total of 208 litters. The NB (No. born), NBA (No. born alive), NBD (No. born dead), NW (No. weaned), BW (Body weight), WW (Weaning weight), SBW (Survival from birth to weaning) and ADG (Average daily gains) were collected. The results showed that the increase of NB and NBA from the primiparity to the fifth parity which reached the maximum and decreased afterward. Nevertheless, there was no difference in NBD, SBW and BW among parities. The NBA, NW, NW and BW of multiparous sows were better than primiparous sow ( P ＜ 0.01); however, the NBD, BWW, and ABW of primiparous sows were better than multiparous sow ( P ＜ 0.05). The NB, NBD, and BWB from the sows that mated in cool season were better than sows mated in hot season (P ＜ 0.001), but the SBW, BWW, and ABW which sows mated in hot season was better than sows mated in cool season ( P ＜ 0.01). The NB had positive correlations with NBA (0.82) and NW (0.62), but was negatively correlated with SBW (-0.20), BWB (-0.29), BWW (-0.45), and ABW (-0.39). The NBA of Lanyu sow had a strong positive correlation (0.79), and had a moderate negative correlations with BWB, BWW, and ABW (-0.29 to -0.45). To sum up, the sow reproductive performance and the piglet growth performance of Lanyu were probably influenced by parity and breeding season.

並列關鍵字

Lanyu pig ； Parity ； Reproduction ； Season at breeding