ABSTRACT A persistent lactation is dependent on maintaining the number and activity of
milk secreting cells with advancing lactation. When dairy cows are milked twice daily, the …

Migration of neutrophils into mammary tissue provides the first immunological line of
defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of …

This investigation evaluated mammary cell loss and replacement during lactation and the
impact of administration of bST on these processes. During lactation, a gradual decrease in …

Increased milking frequency (IMF) at the beginning of lactation has been shown to increase
milk yield not only during IMF but also after its cessation. The objectives of this experiment …

The present study was conducted to evaluate in vivo the role of rumen ciliate protozoa with
respect to the methane-suppressing effect of coconut oil. Three sheep were subjected to a …

To determine effects of rapid prepubertal growth on first-lactation milk production, Holstein
heifers were randomly assigned to one of three treatments. Thirty-five heifers were fed a …

Forty Holstein heifers [body weight (BW)= 126kg] were blocked by BW into groups of 4, and,
within each block, heifers were randomly assigned to one of four treatments. Twenty heifers …

Growth hormone (GH) can increase milk production in cattle, and this effect was thought to
be mediated by an indirect mechanism because traditional ligand binding assays failed to …

Glucose uptake in the mammary gland is a rate-limiting step in milk synthesis. To study
glucose transporters in the bovine mammary gland, the erythrocyte-type glucose transporter …

Objectives were to determine effects of continuous milking (CM) and bovine somatotropin
(bST) administration on 1) mammary epithelial cell (MEC) proliferation, apoptosis, and …