体温能指示怀孕与否.pdf

Journal of Reproduction and Development, Vol. 52, No. 1, 2006
—Full Paper—
Body Temperature and Circulating Proges results suggest that monitoring body
temperature variation can be considered valuable for predicting impending parturition in killer
whales.
Key words: Body temperature, Killer whales, Parturition, Pregnancy, Progesterone
(J. Reprod. Dev. 52: 65–71, 2006)
iller whales, Orcinus orca, are large aquatic changes occur during maternal adaptation to
mammals. They live in water, which removes pregnancy, parturition, and lactation. Body
heat from a submerged mammal’s body about 25 temperature is one indicator that changes during
times faster than for the same body in air [1]. the periods of pregnancy, parturition, and lactation.
Reproductive endocrinology during ovarian cycles A drop in body temperature below normal levels
and pregnancy has been studied in captive killer before parturition has been observed in several
whales [8–10]. However, other physiological mammals, such as cattle [2, 3], sheep [4], dogs [5],
changes during pregnancy and parturition have and rats [6, 7]. Therefore, it may be possible to use
not been clarified. Numerous physiological body temperature changes before parturition to