Marshall, Ronald G. (Army Chemical Corps, Fredrick, Md.), and Peter J. Gerone. Susceptibility of suckling mice to variola virus. J. Bacteriol. 82:15-19. 1961.-The susceptibility of suckling mice inoculated intraperitoneally or intracerebrally with variola virus was investigated. Data are presented that define the death patterns, the relationship of incubation period to dose of virus inoculated,...

The reproductive performance of postpartum cows is affected by factors such as suckling and nutrition. We investigated the effect of a restricted suckling period on the superovulatory response and the fertility after flushing in postpartum Japanese Black cows. Forty-seven postpartum cows were used in this study. At 7 days postpartum, the cows were divided into 2 groups: (1) continuous access to...

2015 © American Water Works Association JOURNAL AWWA OCTOBER 2015 | 107:10 Tularemia is an acute febrile zoonotic disease caused by the bacterium Francisella tularensis. Shortly after the initial isolation of the organism in Tulare County, Calif. (McCoy & Chapin 1912), the first case of a human infection was reported from Cincinnati, Ohio (Wherry & Lamb 1914). The first documented waterborne ou...

BACKGROUND & AIMS Previous studies have suggested that iron absorption in suckling mammals is refractory to stimuli that normally would decrease absorption in adults. To better understand the regulation of iron absorption during suckling, we have characterized the relationship between hepcidin, ferroportin, and iron absorption at this crucial stage of life. METHODS To determine whether ferrop...

Objective(s): The effect of litter size and suckling intensity on the expression of KiSS-1 mRNA in the arcuate nucleus (ARC) of rats were evaluated. Materials and Methods: Thirty two pregnant and four non-lactating ovariectomized (as control group) rats were used in this experiment. Lactating rats were allotted to eight equal groups. In three groups, litter size was adjusted to 5, 10, or 15 pup...

The aim of this experiment was to study the effects of pen size and parity on maternal behaviour of twin-bearing Small-Tail Han ewes. A total of 24 ewes were allocated to a 2×2 design (six per pen), with parity (primiparous or multiparous) and pen size (large: 6.0×3.0 m; small: 6.0×1.5 m) as main effects at Linyi University, Shandong Province, China. Behaviour was observed from after parturitio...

Hatano high-avoidance (HAA) and low-avoidance (LAA) animals were originally selected from Sprague-Dawley rats for good and poor active avoidance learning in a shuttle box. We studied the endocrinological profile in lactating rats to determine the effect of suckling during mid-lactation in HAA and LAA rats. The pups were separated from their mother rats 6 h before the onset of suckling and blood...

Lamb survival is a key issue for sheep farming operations. The majority of lamb deaths from birth to weaning occur in the first 3 days after birth and range from 5% to 30% for individual sheep flocks. A simplified lamb post-mortem examination (PM) protocol has been developed for use on farm to determine the primary cause of lamb death between birth and 3 days of age. Firstly lamb viability at b...

objective(s): the effect of litter size and suckling intensity on the expression of kiss-1 mrna in the arcuate nucleus (arc) of rats were evaluated. materials and methods: thirty two pregnant and four non-lactating ovariectomized (as control group) rats were used in this experiment. lactating rats were allotted to eight equal groups. in three groups, litter size was adjusted to 5, 10, or 15 pup...