Breeding records of 40 white rhinoceros and 155 Cape buffalo were analysed. Three rhinoceros cows bred in captivity, themselves conceived for the first time at 84, 87 and 95 months of age, respectively. Rhinoceros cows breed throughout the year. There is no evidence of a relationship between calving interval and month of birth. Calving intervals were normally distributed about the mean of 34 mo...

BACKGROUND Short birth intervals are known to have negative effects on pregnancy outcomes. We analysed data from a large population surveillance system in rural Bangladesh to identify predictors of short birth interval and determine consequences of short intervals on pregnancy outcomes. METHODS The study was conducted in three districts of Bangladesh - Bogra, Moulavibazar and Faridpur (popula...

In order to evaluate the influence of the time interval on the second twin in twin deliveries, we have used more precise criteria than have been used in the literature to date. In the period from July 1, 1970 to December 31, 1974, 35 twin deliveries in our hospital were analyzed, in which both twins fulfilled the following criteria: 1. vertex presentation 2. vaginal deliveries 3. birth weight a...

BACKGROUND Several birth characteristics are associated with high mortality risk: very young or old mothers, short birth intervals and high birth order. One justification for family planning programs is the health benefits associated with better spacing and timing of births. This study examines the extent to which the prevalence of these risk factors changes as a country transitions from high t...

OBJECTIVE This paper examines the association between birth intervals and infant and child mortality and nutritional status. METHODS Repeated analysis of retrospective survey data from the Demographic and Health Surveys (DHS) program from 17 developing countries collected between 1990 and 1997 were used to examine these relationships. The key independent variable is the length of the precedin...