... supplementary thyroid hormones (THs) or the inhibitor methimazole during lactation at 21 or 32.5°C, and measured food intake, resting metabolic rate (RMR), milk energy output (MEO), serum THs and mammary gland gene expression of females, and litter size and mass of their offspring. Lactating females developed...

... or reduced litter size in mice during their first lactation, and then followed them through a successive unmanipulated lactation. Measurements of food intake, body mass, milk energy output (MEO), litter size and litter mass were taken. Offspring from the first lactation were also bred to investigate...

... day −1 , unshaved: 97±2 kJ day −1 ; P <0.0001) and metabolisable energy intake (shaved: 215±4 kJ day −1 , unshaved: 185±4 kJ day −1 ; P <0.0001), as well as the milk energy output (shaved: 104±4 kJ day −1 ; unshaved: 93±4 kJ day −1 ; P =0.021) and litter growth rate (shaved: 9.4±0.7 g 4 days −1...

... peripheral limitation hypothesis metabolizable energy intake daily energy expenditure milk energy output doubly labelled water prolactin thermal conductance milk production The sustained maximum rate of energy intake (SusEI) is an important trait because it may provide an upper bound...

... day 10 of lactation. Energy intake, number of pups and litter mass, milk energy output (MEO), thermogenesis, mass of the mammary glands and brown adipose tissue cytochrome c oxidase activity of the mothers were measured. At 21 and 5°C, pup mass at weaning was almost independent of litter size...

... investigated heritability of reproductive performance in MF1 mice. Food intake, milk energy output (MEO) and litter mass were measured in mothers (F 0) and daughters (F 1) that were raising litters of 10 pups. Cross-fostering was designed so that half of each litter consisted of biological offspring...

... at 21°C. There was no significant difference in digestibility. With similar mean litter sizes (7.26±0.46 pups at 21°C and 7.78±0.39 pups at 30°C at the beginning of parturition,6.83±0.51 pups at 21°C and 7.73±0.50 pups at 30°C at weaning), the milk energy output of mothers, evaluated from the difference...