Table 1.
Animal, housing, and management characteristics for the collaborating animal facilities.
Fig 1.
Probability of pup death and litter mortality distribution.
Probability of pup death in litters without (NO) or with (YES) the presence of older siblings in the cage (litter Overlap) at (A) C1, the Babraham Institute, and (B) C2, the Wellcome Sanger Institute, based on least-square means. Percentage of litters by category of pre-weaning mortality in Overlapped and Non-Overlapped litters at (C) C1 and (D) C2, based on raw data. Numbers within brackets in the x-axis designate lower (left side) and upper (right side) endpoints of mortality range. An open bracket next to a number designates a non-inclusive endpoint.
Fig 2.
Probability of pup death by Dam Age and Sibling Age.
Predicted probabilities (least-squares means) of a pup to die as a function of Dam Age for three distinct levels of Litter Size (number of pups born), at C1, the Babraham Institute and C2, the Wellcome Sanger Institute. Each line corresponds to predictions for a specific value of Sibling Age, as depicted in the legend next to the top left graph. Predictions were obtained while assuming six older pups in the cage, the most recurrent Weekday (Thursday) and the most common Season (Spring) in the combined dataset.
Fig 3.
Probability of pup death by Sibling Number and Sibling Age.
Predicted probabilities (least-squares means) of a pup to die as a function of Sibling Number (number of older pups in the cage at the birth of the focal litter) for three distinct levels of Litter Size (number of pups born), at C1, the Babraham Institute and C2, the Wellcome Sanger Institute. Each line corresponds to predictions for a specific value of Sibling Age, as depicted in the legend next to the top left graph. Predictions were obtained while assuming a mean Dam Age of 130d, the most recurrent Weekday (Thursday) and the most common Season (Spring) in the combined dataset.