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RELATION OF LITTER SIZE AND OTHER FACTORS TO THE DURATION OF GESTATION IN THE PIG

D. F. Cox

Open publisher page 19 citations

Abstract

Summary. The negative correlation between the number of foetuses and the length of gestation characteristic of most multiparous species is not found in the pig. This observation, reported in previous studies, was confirmed using 1450 records from the Duroc and Hampshire breeds. The gestation period was also unrelated to either the number of late foetal deaths or to the weight and fatness of the sow but prolonged gestation at first parturition reduced the probability of a second litter.

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What this paper is about

Summary. The negative correlation between the number of foetuses and the length of gestation characteristic of most multiparous species is not found in the pig. This observation, reported in previous studies, was confirmed using 1450 records from the Duroc and Hampshire breeds. The gestation period was also unrelated to either the number of late foetal deaths or to the weight and fatness of the sow but prolonged gestation at first parturition reduced the probability of a second litter.

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Available abstract

Summary. The negative correlation between the number of foetuses and the length of gestation characteristic of most multiparous species is not found in the pig. This observation, reported in previous studies, was confirmed using 1450 records from the Duroc and Hampshire breeds. The gestation period was also unrelated to either the number of late foetal deaths or to the weight and fatness of the sow but prolonged gestation at first parturition reduced the probability of a second litter.

Key concepts: Litter, Gestation, Gestation period, Animal science, Biology, Positive correlation, Pregnancy, Medicine

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RELATION OF LITTER SIZE AND OTHER FACTORS TO THE DURATION OF GESTATION IN THE PIG — Research Paper | ScholarLens