BACKGROUND Breastfeeding behaviour is multifactorial, and a wide range of socio-cultural and physiological variables impact on a woman's decision and ability to breastfeed successfully. An association has been reported between maternal obesity and low breastfeeding rates. This is of public health concern because obesity is rising in women of reproductive age and the apparent association with in...

PURPOSE To examine the association between female reproductive factors and age-related macular degeneration (AMD) in postmenopausal women. DESIGN Nationwide population-based cross-sectional study. METHODS A nationally representative dataset acquired from the 2010-2012 Korea National Health and Nutrition Examination Survey was analyzed. The dataset involved information for 4,377 postmenopaus...

In the past century, great strides have been made toward optimizing milk production efficiency of dairy cows. One of the key findings that has emerged is that the milk yield of dairy cows is responsive to demands of offspring or milk removal; hence, milk production can be increased by frequent milking. Early studies illustrated the galactopoietic effect of frequent milking during the entire lac...

BACKGROUND Findings from observational studies suggest an inverse association between lactation and premenopausal breast cancer risk, but results are inconsistent, and data from large prospective cohort studies are lacking. METHODS We used information from 60,075 parous women participating in the prospective cohort study of the Nurses' Health Study II from 1997 to 2005. Our primary outcome wa...

Significant calcium transfer from the mother to the fetus and infant occurs during pregnancy and lactation, theoretically placing the mother at an increased risk for osteoporosis later in life. During pregnancy, intestinal calcium absorption increases to meet much of the fetal calcium needs. Maternal bone loss also may occur in the last months of pregnancy, a time when the fetal skeleton is rap...

JUOZAITIENE, V., A. JUOZAITIS: The influence of somatic cell count in milk on reproductive traits and production of Black-and-White cows. Vet. arhiv 75, 407414, 2005. ABSTRACT The aim of this study was to estimate the relationships between somatic cell count in milk, reproduction traits and milk production of cows of the Black-and-White breed. The research was carried out on 412 herds of the ac...

The effect of bovine pineal extract and light duration on lactation in mice was examined in two experiments. In Exp. I, groups of lactating mice were injected intraperitoneally with 0, .5, 1.0, 2.0 and 4.0 mg extractable protein from a bovine pineal crude extract. The highest dose level was equal to .14 g of pineal tissue. Neither lit ter (eight pups per litter) weight gains, which were used as...

An inverse correlation between the concentration of DDE in human breast milk samples and the duration of breast feeding prompted the present study of the effects of DDE administration on the lactational performance of primiparous rats. Daily doses of 10 mg p,p'-DDE/kg body weight were given to virgin female Sprague-Dawley rats 5 d/wk for 5 wk prior to mating and continued throughout the gestati...

Energy balance and serum progesterone concentrations were monitored during early lactation in a group of high producing Holstein cows. The postpartum interval to normal ovulation averaged 36 +/- 6 days (range 6 to 83 days). Average energy balance during the first 20 days of lactation (cumulative daily calculated energy balance divided by days in milk) was inversely related to days to normal ovu...

Canal-Corretger, M. M., T. Cambras, J. Vilaplana, and A. Dı́ez-Noguera. Bright light during lactation alters the functioning of the circadian system of adult rats. Am. J. Physiol. Regulatory Integrative Comp. Physiol. 278: R201– R208, 2000.—To examine the role of light in the maturation of the circadian pacemaker, twelve groups of rats were raised in different conditions of exposure to constant ...