The study was carried out on a total number of 360 dairy animal, 275 dairy cow and 85 buffalo during the period from Jan. 2010 to March 2015. All the cases were private cases seen in the villages of Damietta and in veterinary convoys held in villages of Upper Egypt. The udder affections included: Deep wounds ( 5(1.4%) , 1(0.28%) ); Heamatoma ( 20(5.6%) ,7(1.9%) ); Abscesses ( 21(5.83%) ,0 ); Ga...

Overmilking is a matter of concern because it may affect teat condition and udder health. The historic background for overmilking is mainly based on the assumption that all milk should be removed from the udder in order to maximise the milk yield. However, breeding for high milk yields has provided cows with a high alveolar capacity, large cistern capacity, and a higher proportion of cisternal ...

The relationship between milk yield and somatic cell score (log-transformed somatic cell count) in dairy goats may involve complex pathways with recursive or simultaneous effects. Structural equation models were fitted to longitudinal data on milk yield and on somatic cell scores. Data consisted of 4 repeated records of milk production and of somatic cell score from left and right halves of the...

throcyte antigen loci covering the whole genome. De-regressed breeding values were available for 29 traits, including 20 conformation, 2 fertility, 4 birth, 2 workability, and 1 longevity trait. After determining the most likely marker haplotypes for all grandsires based on the genotypes of their sons, multi-marker regression analysis of the trait data was used to scan the genome for QTL. Chrom...

Escherichia coli is one of the main pathogenic agents causing inflammatory infections in the bovine udder. Here, we report the draft genome sequences of two strains isolated from different cases of clinical mastitis.

to test the effect of culling herd life from the breeding goal function, 4 different selection indices were established as: index 1: using milk production (milk), fat percentage of milk (fat%) and rear udder height (ruh); index 2: using milk , fat% and fore teat placement (ftp), index 3: using milk, fat% and fore udder attachment (fua); and index 4: using milk, fat%, ruh, ftp and fua) under two...

Objective- The aim of this study was to determine the normal ultrasonographic and morphologic appearance of mammary gland and teat in Caspian mares during lactation and dry period. Design- Experimental study. Animals- Seven mature Caspian mares Procedures- Using a 6.5-8.5 MHz linear transducer the ultrasonographic appearance of lactating and dry mammary glands was determined in 7 mature Casp...

Factors related to the distribution of clinical bovine mastitis between rear and front quarters were studied using data from a 4 year survey of commercial dairy herds in western France. The study involved 844 mastitis cases affecting 597 lactations of 500 French Friesian cows from 44 herds. Risk factor hypotheses were related to certain aspects of lactation, udder conformation and management pr...

The aim of this review is to better understand the regulation of milk yield in response to once-daily milking and feed restriction. Glucose is the principal precursor for the synthesis of lactose (a major osmotic agent in milk), and participates in determining the milk volume produced. When applying these two breeding factors, reductions in milk yield are associated with a reduction in milk lac...

The aim of the experiment was to study the impact of high ambient temperature (25°C) around farrowing on crated sows unable to perform thermoregulatory behavior. Twenty sows were housed in 2 farrowing rooms in conventional farrowing crates. In 1 room (CONTROL) temperature was kept at 20°C. In the other room (HEAT) temperature was initially kept at 20°C and gradually raised until it reached 25°C...