PAPILLOMATOSIS IN DAIRY COWS

Lameness in dairy Cows

   This paper intended to review the lameness in dairy cattle. But it was necessary to have an overview about the hoof anatomical structure, it's growth and overgrowth properties. Most common causes of lameness such as laminitis and its different clinical form or presentation such as sole ulcers, toe ulcers, white line disorders, sole and white linehemorrhages have been reviewed and discussed. ...

PerForMance in Dairy cows

• Blood growth hormone (GH) concentrations increase shortly after calving. • Greater blood GH coordinates nutrient partitioning; the process through which nutrients are preferentially targeted for milk production. Blood insulin and insulin-like growth factor (IGF)-I remain low when blood GH concentrations increase. • Blood GH concentrations are elevated in cows in negative energy balance. Blood...

Hypocupraemia in dairy cows.

Although Neal, Becker & Shealy (193 I) appear to have been the first to suggest that deficiency of copper occurs naturally in livestock, it was Sjollema (1933) who first described a disease of plants and animals in parts of Holland which could be controlled by administration of copper. In cattle, goats and sheep the disease, a form of ‘Lecksucht ’, was characterized by anorexia, emaciation, ana...

Sleep in Dairy Cows

Little is known about rest and sleep in dairy cows, but it has been shown in other species that the total amount of sleep, duration of sleep bouts and distribution of sleep over 24 hours differ depending on health status, age, pregnancy and lactation. Sleep recordings conducted on cows with surgically implanted electrodes have shown that they sleep four hours per 24-hour period. In this thesis,...

Prototheca Mastitis in Dairy Cows