Are Litter Mates Needed for Each Piglet to Keep its Exclusive Teat after the Establishment of a Teat Order?
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概要
- 論文の詳細を見る
Experiments were conducted to investigate how piglets discriminate between their exclusive teats on their dams udder after the establishment of a teat order. Thirteen piglets from two litters were used. All piglets were tested from 1 to 3 weeks of age in the following two experiments. Experiment 1: When the sow grunted to indicate suckling, her litter was moved to the next pen. The piglets were housed one by one in a starting box placed at the back of the lying sow. After a short period, the door of the box was opened and each piglet started to seek its dams udder without its litter mates. Experiment 2: When the sow grunted to indicate suckling, her litter was moved to the next pen. The front teats, on both the left-hand and the right-hand sides, were covered by an elastic cloth which was skin color. The piglets were housed in a starting box placed at the back of the lying sow. After a short period, the door of the box was opened and the piglets started to seek their dams udder. In experiment 1, 76.9% of the piglets were able to reach their dams udder within 3 min, and 83.3 % of them reached their exclusive teats (P<0.01). In experiment 2, the piglets that had occupied the front teats could not find their teats since they were covered with a cloth. The piglets were in a flurry and did not reach any other teats. All the other piglets were able to reach their proper teats within 3 min. These results indicate that piglets might be able to discriminate between their exclusive teats from other teats in an absolute position, but not in a position relative to other litter mates.
- 社団法人 日本畜産学会の論文
- 2000-11-25
著者
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Yoshimoto Tadashi
School Of Pharmaceutical Sciences Nagasaki University
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Tanaka Toshio
School Of Veterinary Medicine Azabu University
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KAWARAZAKI Miyako
School of Veterinary Medicine, Azabu University
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Kawarazaki Miyako
School Of Veterinary Medicine Azabu University
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Yoshimoto Tadashi
School of Pharamaceutical Sciences, Nagasaki University
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Yoshimoto Tadashi
School of Veterinary Medicine, Azabu University
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