The objective of this study was to investigate the relationship between prepartum feeding behavior, measured as time spent feeding per day, and periparturient health disorders, milk yield, milk composition, and milk somatic cell count in Jersey cows. Pregnant Jersey cows were marked with unique alphanumeric symbols and were moved into a prepartum group 4 weeks prior to their expected calving da...

The purpose of this study was to evaluate the effect of a feed additive (OmniGen-AF(®), reported to have immune modulating activity) on innate immunity and health events during the periparturient period in dairy heifers when immunity is suppressed. From 60 days prepartum through calving, supplemented heifers (n=20) received OmniGen-AF(®) daily and were compared with unsupplemented controls (n=2...

Infection with gastro-intestinal nematodes (GIN) is one of the most prevalent diseases affecting small ruminants in the tropics. Mixed grazing between sheep and cattle reduces infection of the small ruminants and improves growth performances (Mahieu et al., 1997). Also, it is possible to select Creole goats on resistance to GIN during the post weaning growth and the periparturient period (Mando...

Periparturient dönemde, süt sentezinin başlaması ve yem tüketiminin azalması sonucu enerji ihtiyacının artması, ineklerde negatif dengesinin (NED) ortaya çıkmasına neden olur. İneklerin NED’e uyum sağlayamaması sonucu, yağlı karaciğer ketozis gibi metabolik hastalıklar çıkmaktadır. Karaciğer yağlanması ketozis, aboma-sum deplasmanı, metritis hastalıklar, immün sistemin baskılanması reprodüktif ...

The transition period is the most critical time of the cow’s lactation cycle that is associated with the onset of mastitis. In this study, changes of plasma proteins in cows (n = 12) with or without subclinical mastitis after calving were determined by two-dimensional electrophoresis (2-DE), which detected 18 spots with variations in protein spots abundance. These spots were identified by liqui...

The aim of this study was to evaluate whether the peripheral cytokine expression could be affected by differences in fat thickness in healthy mares during the periparturient period (last weeks of pregnancy and first weeks of lactation). At the beginning of the 11th month of gestation, 18 mares with normal body condition score (BCS; 5) were divided into two groups with low (L; ≤12 mm; n = 12) an...

The objectives of this study were to measure the changes in protein expression of the mammary Ca2+-ATPases during the periparturient period and to determine whether Ca2+-ATPase protein expression in the mammary gland is related to milk fever (MF) development. Abundance of Ca2+-ATPase in mammary tissue and milk fat globule membranes was determined by Western blotting. The secretory pathway Ca2+-...