Effects of Wet/dry Feeding for Postweaning Pigs on Growth, Feed Intake, Water Consumption and Eating Behavior.
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概要
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Three rearing tests were conducted to determine the effectiveness and to identify the problems of applying wet/dry feeding to 113 postweaning pigs whose feed was changed, one week after the weaning, from the starter milk A to the starter milk B. The effects of wet/dry feeding for postweaning pigs were observed on growth, feed intake, water consumption and eating behavior. Five types of feeders were tested: Conventional ad libitum feeders for growing pigs with five feeding spaces (Control Section); ledge type wet/dry feeders with one feeding space and two feeding spaces (Wet Feeder Section 1-1 and 1-2 respectively); nose operated flap type wet/dry feeders with one feeding space and two feeding spaces (Wet Feeder Section 2-1 and 2-2 respectively). After the postweaning pigs for the test were introduced to each section and reared for 2 to 7 days for preliminary rearing (adapting period), they were supplied with the starter milk B for the first three weeks, then with formula feed for growing pigs for the next three weeks.Effects of the feeder type on the average daily gain of the postweaning pigs were not significantly different across the sections, although the pigs in the wet feeder sections tended to show rather poor growth in 1-1, 2-1 and 2-2 in the adapting period, while they indicated the superior one through the experimental period, compared with those in the control section. The feed intake was increased in wet feeder sections from 5 to 8% compared with the control section. As for the feed conversion, no difference was shown between the sections. The water consumption varied according to the types of wet/dry feeders, showing the water saving effect of 3 to 31%. In the eating behavior, the total eating time of a day and the average eating time were significantly reduced in the wet feeding sections compared with the control section. The feeding trough usage rate, when the number of pigs per feeding space was 10 in the wet feeding sections, was significantly increased compared with the control section.
- 日本養豚学会の論文
日本養豚学会 | 論文
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