background: microbiological and chemical qualities ofmilk are among the most important issues in public health.objectives:although there are a few published studies whichhave been conducted in south east of iran this study wasperformed to investigate quality of raw milk delivered to a dairyindustry company kerman province. methods:atotal of 109raw milk samples were collected at the time of deli...

The objective of this study was to probe the relationship between prevalence of selected principal mastitis pathogens and somatic cell counts in bulk tank milk samples. The sources of milk contamination were evaluated. The samples were collected from 298 dairy herds (with approximately 32 000 dairy cows). Only 48.3% of the bulk tank milk samples were free of contamination of pathogens of intere...

Currently, somatic cell count (SCC) and bacterial culture are considered as the gold standard of detecting subclinical Mastitis. Mastitis leads to proliferation of lymphocytes in the supramammary lymph nodes and subsequent enlargement of ipsilateral lymph node. Ultrasonography can be used to survey these changes. A portable ultrasound machine with a 2-5 MHz convex transducer was used to identif...

Migration of neutrophils into mammary tissue provides the first immunological line of defense against bacteria that penetrate the physical barrier of the teat canal. Evasion of neutrophil defenses provides an opportunity for invading bacteria to become established. Depletion of neutrophils results in a dramatic increase in susceptibility to intramammary infection. Numerous cytoplasmic particles...

In the current study, 3 groups with similar characteristics were formed in Uşak Cattle Breeders Association Research Farm. A total of 21 cows, which third and fourth lactation, selected grouped as including 7 Holstein cows each group. The animals first group given 143 g / kg calcium propionate second give 30 mg trisodium citrate orally for two months. received no additives a control farm where ...

in this study, somatic cell counts (scc) of milk were determined in six industrial and traditional dairyfarms in tehran province during different seasons. the prevalence of udder disorders and mastitis wasestimated on the base of scc as an indicator as well. in this research, industrial and traditional dairyfarms during 9 months were studied by total 32620 scc records. milk samples were collect...

u sing the database of the animal breeding center ofiran and based on the eligible test-day data from 78969 cows in five provinces: tehran (with 44129 cows), ghazvin (6668), zanjan (1767), isfahan (7572), khorasan-e-razavi (14521) and others (4312) the averages of 426850 ± 966840 and 473860 ± 605330 cells/ml of milk somatic cell count (scc) was calculated for individual cows and herds respectiv...

The traits particularly important for milk production include milk yield, protein percentage, fat percentage, and the somatic cell score. Alpha-lactalbumin (α-LA) is an important whey protein of cow milk, and is also present in the milk of many other mammalian species. In this study, we analyzed the genetic polymorphisms of the α-LA gene and their relationship to milk production traits (milk yi...