Author:
Sakai T.,Nishino M.,Hamakawa M.,Yoon C.-S.,Thirapatsakun T.
Abstract
The effect of piggery temperature on daily live-weight gain of triple cross Large White-Duroc pigs was studied. Weaning rate and fattening completion rates were similar among piglets born in different seasons of the year but the average daily weight gain was slower during the early (20 to 40 kg live weight) and intermediate (40 to 60 kg live weight) periods of fattening in the autumn-born group (T < 0·05) whilst during the late period (60 to 80 kg live weight) slower growth rates were found in the summer- and winter-born groups (P > 0·05). In the intermediate period the fastest growth rates (900 g/day) were recorded at piggery temperatures of 16 to 20°C. In the same period the slowest growth rates (602 g/day) were recorded at temperatures of 8°C or lower and at 24°C or higher. The daily live-weight gain during the intermediate period was shown to be related to piggery temperature in a curvilinear manner according to the equation Y = −2·48x2 + 90·44x + 25·37.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology
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