this study was conducted to evaluate the effects of inclusion of monensin alone or in combination with methafix (a commercial product containing malate and fumarate) in the diets of lactating dairy cows on ruminal parameters and serum metabolites. four multiparous holstein lactating dairy cows (657± 12 kg of live weight; 133 ± 41days in milk) were assigned to one of the four dietary treatments....

Relevance. Studies on the assessment of pro- and antioxidant status body productive animalsare relevant, since they are interconnected with health, state immune reproductive systems. There is a steadily growing information in field oxidative stress animal husbandry veterinary medicine, which indicates general importance defense impaired health productivity ruminants. need to translate this know...

Kitaw, G., Gebregziabhear, E., Urge, B., Mulatu, Y. and Acheampong, E.N. 2022. Nutritional characterization evaluation of bamboo leaves hay potential as a basal diet for lactating crossbred cows in Ethiopia. Animal Nutrition Feed Technology, 22: 107–121.

BACKGROUND Gyr cows are well adapted to tropical conditions, resistant to some tropical diseases and have satisfactory milk production. However, Gyr dairy herds have a high prevalence of subclinical mastitis, which negatively affects their milk yield and composition. The objectives of this study were (i) to evaluate the effects of seasonality, mammary quarter location (rear x front), mastitis-c...

Previous research indicates that high blood urea nitrogen (BUN) concentrations are associated with decreased fertility in lactating dairy cows.This experiment was done to evaluate the effects of equine chorionic gonadotropin (eCG) administration (with or without eCG) on fertility of lactating dairy cows with different levels of BUN subjected to fixed-time artificial insemination (FTAI).Ovulatio...

The objective of the experiment was to determine the effects of fat supplementation on embryo quality of dairy cows and the subsequent success of embryo transfer into recipient heifers fed the same sources of fat. A total of 30 lactating Holstein cows were allotted on d 18 postpartum to 2 groups of 15 donor cows blocked for similar calving dates. Total mixed diets based on silage and fat supple...

2. Thiamphenicol is used for the treatment and control of respiratory and intestinal infections in cattle and poultry; the routes of administration are oral or intramuscular. However, the substance is also intended for intramammary administration in both lactating and dry cows and for intrauterine administration in cows. Thiamphenicol is used for the treatment of pigs against respiratory and in...

Mastitis is the most common and costly disease of dairy cows (Hortet and Seegers, 1998; Zafalon et al., 2007); this is also the single most common reason for antimicrobial use in dairy herds, since antimicrobial therapy is the major primary tool for mastitis control in lactating and dry cows. Recently, coagulase-negative Staphylococci (CNS) are increasing in importance as cause of bovine intram...

ThirtyFrieswal lactating cows were screened for clinical and subclinical mastitis and subsequently classified into healthy, subclinically affected and clinically affected groups each group comprising of 10 cows. Polymorphism of cow lactoferrin (LTF) gene promoter was determined by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The results showed that LFT gene pro...

ABSTRACT: Breeding strategies aim to reduce lameness in dairies by using predictor traits increase the selection of dairy cows. This study enhanced present knowledge about association between claw conformations (CC), hindlimb conformation (HiLC), gait, and body condition score (BCS) A total 166 lactating Holstein cows were enrolled scored for BCS, CC, HiLC, gait. The abnormal HiLC group was sta...