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Keywords: Pregnancy
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Journal Articles
J Exp Biol (2020) 223 (19): jeb228064.
Published: 12 October 2020
... vivipara ) in a two-by-two factorial design manipulating both hydric and thermal conditions, for the first time. We collected blood samples and morphological measurements during early pregnancy and post-parturition to investigate how water availability, temperature and a combination of the two influence...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (10): jeb225185.
Published: 27 May 2020
... remain poorly described in many vertebrate groups. For example, although viviparity has evolved many times in vertebrates, the relationship between immune function and pregnancy has been disproportionately studied in placental mammals. To examine the energetic costs of immune activation...
Journal Articles
J Exp Biol (2018) 221 (Suppl_1): jeb164517.
Published: 7 March 2018
..., but in response to increased demand and corresponding increased prolactin levels, Grb10 mutant mothers could not increase milk production, suggesting resistance to elevated prolactin. Grb10 is expressed in the mammary epithelium during pregnancy; however, its role here is unclear because no defect was found...
Journal Articles
J Exp Biol (2014) 217 (7): 1058–1064.
Published: 1 April 2014
...Elizabeth M. Dlugosz; Cynthia J. Downs; Irina S. Khokhlova; A. Allan Degen; Boris R. Krasnov Reproduction is an energy-demanding activity in mammalian females, with increased energy requirements during pregnancy and, especially, during lactation. To better understand the interactions between...
Journal Articles
J Exp Biol (2013) 216 (12): 2316–2327.
Published: 15 June 2013
...-set target on running wheels to obtain ad libitum access to food. The voluntary distance run decreased sharply during pregnancy and peak lactation. When lactating females were provided with 80% of their estimated food requirements, and had to run pre-set distances of 2, 4 or 6 km before given access...
Includes: Supplementary data
Journal Articles
J Exp Biol (2001) 204 (11): 1925–1935.
Published: 1 June 2001
... Limited 2001 2001 energetics maximal metabolic rate sustained metabolic rate pregnancy lactation reproduction mouse The maximal rates of energy expenditure by animals are of interest in several different contexts, perhaps most importantly because they define an upper boundary...
Journal Articles
J Exp Biol (2001) 204 (11): 1947–1956.
Published: 1 June 2001
..., hence combining the energy demands of pregnancy and lactation. These experimental mice were therefore concurrently pregnant and lactating in their first lactation, and were followed through a normal second lactation. In a control group, females also underwent two lactations but sequentially...
Journal Articles
J Exp Biol (2001) 204 (11): 1967–1977.
Published: 1 June 2001
... 2001 2001 energetics maximal metabolic rate sustained metabolic rate pregnancy lactation reproduction mouse Many studies have examined the limits to sustainable metabolic rate (SusMR) in small mammals ( Kirkwood, 1983 ; Peterson et al., 1990 ; Weiner, 1992 ; Hammond and Diamond...
Journal Articles
J Exp Biol (2001) 204 (11): 1937–1946.
Published: 1 June 2001
...., Diggavi, S. N., Thangam, S., van Raaij, J. M. A., Shelty, P. S. and Hautvast, J. G. A. J. ( 1995 ). Changes in energy expenditure, anthropometry and energy intake during the course of pregnancy and lactation in well-nourished Indian women . Am. J. Clin. Nutr . 61 , 501 –513. Read, A. F...
Journal Articles
J Exp Biol (2001) 204 (11): 1957–1965.
Published: 1 June 2001
...% less digestible energy (9.75kJg −1 ) but equivalent amounts of protein and essential minerals and vitamins per gram as the normal diet. Half the animals were switched to the low-energy diet during early pregnancy and half after parturition. The food intake of the two groups increased enormously...
Journal Articles
J Exp Biol (1991) 156 (1): 399–406.
Published: 1 March 1991
..., primarily adenosine triphosphate). NTP concentrations were significantly higher, and oxygen affinities were significantly lower, in red cell suspensions from pregnant females compared with those from nonpregnant females or males; there is no precedent for such a pronounced effect of pregnancy on the oxygen...
Journal Articles
J Exp Biol (1989) 145 (1): 465–469.
Published: 1 September 1989
... the optimum temperature for embryonic development differs from the temperature of optimum activity in the adult, one would predict a shift in thermoregulatory behavior of the pregnant female. We have examined the influence of pregnancy on the thermoregulatory behavior of the northern Pacific rattlesnake...