Mastitis is a major problem that reduces milk production and quality in the whole world. Because mastitis an endemic disease, farmers most countries have control programs to keep prevalence at low level of less than 5%. However; program cannot be implemented unless risk factors are known. Therefore; systematic review was conducted provide broad information on associated propose appropriate stra...

This study was carried out in order to determine the disinfectant effect of Methylated spirit® (95% methanol and 5% ethanol) as a teat dip against Listeria species. Hand milking was employed to collect 576 (288 x 2) raw milk samples from different lactating cows within Sokoto metropolis (Nigeria). 288 samples were collected before disinfecting the udder teats with Methylated spirit®, while the ...

Avoiding antibiotics is one of the crucial goals in organic dairy herd health management. Thus, a trial with 102 cows (408 quarters) was conducted to compare 2 common medical dry-off practices in or­ ganic dairying, internal teat sealant (Orbeseal®, Pf­ izer) and herd specific homeopathic remedies, with an untreated control. Regarding the sub-clinical mastitis protection rate (IPR), the results...

The objective was to examine the direct and correlated responses of linear type, yield traits, and somatic cell scores (SCS) to divergent selection for predicted transmitting ability for type (PTAT) in Holsteins, while maintaining selection for yield traits across lines. For four generations, one-half of the University of Nebraska research Holstein herd was bred to Holstein sires with PTAT > 1....

The conformation traits of cows are heritable and linked with functionality and longevity. The dominant dairy breed in Europe is the Holstein. The objectives of this study were to evaluate exterior traits dependence on genotype of Lithuanian Black and White cows according to the degree of Holstein genes. For analysis, the conformation traits data of 53160 cows (in average of 2.7±0.01 lactation)...

BACKGROUND Mastitis is one of the most important diseases affecting dairy sheep. Antimicrobial drugs are often administered directly through teat to treat or prevent this disease, but data on drug distribution within glandular tissue are scarce and it cannot be estimated from concentrations in milk. Thus, the aim of this study was to investigate systemic and mammary gland distribution of enrofl...

One hundred and ninety two records were taken weekly for twenty four (24) weeks from West African Dwarf (WD), the Yankasa (YN) X crossbred (XB) sheep. The traits evaluated milk yield (MK), linear body measurements (LB) such as height at withers, (HT), length (BL), heart girth (HG), shoulder width (SW), Tail (TA), Neck (NL), circumference (NC), Face (FA), Hind leg (HL), Foreleg (FL), Ear (EA), H...