نتایج جستجو برای: clinically healthy cows
تعداد نتایج: 415859 فیلتر نتایج به سال:
An outbreak of botulism was suspected at an Austrian dairy farm in June 2010. Six Simmental cows, out of a herd of 29, were affected and showed the typical signs. The affected cows included either animals suffering from sudden recumbency and reduced tongue tone or others which developed paresis, which gradually led to recumbency. Most of the affected animals died. Two cases were submitted to th...
The objective of this study was to determine the comparative changes in the monthly blood urea nitrogen (BUN) concentration, total protein (TP) concentration in blood serum and the body condition score of Nguni cows and heifers raised on sweetveld. Twenty-four clinically healthy animals in different parities, namely Parity 1 (n = 5), Parity 2 (n = 5), Parity 3-6 (n = 9) and heifers (n = 5), wer...
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...
Serum pepsinogen activity was determined in the blood serum of 126 clinically healthy cows by the method of Paynter. After slaughter the cows studied were classified into three groups according to established macroscopic changes to the mucous membrane of the abomasum: a group without changes, a group with ulcers and a group with other changes. The prevalence of the appearance of abomasal ulcers...
Relevance. Ketosis is a frequently observed disease in cattle, which especially susceptible to highly productive cows after calving, and therefore the search for affordable effective methods prevention correction of this condition actively pursued. Materials methods. The biochemical parameters blood serum Blackand-White with subclinical ketosis treated according schemes that included propylene ...
Immunopathological Responses to the Bovine Mastitis Associated with Staphylococcus Species Infection
Bovine mastitis is a disease that concerns animals' welfare and increases the economic production losses. Bacterial agents such as Staphylococcus species are main causative agent of bovine mastitis. This bacterial expresses some inflammatory cytokines might enhance cell-mediated, which may promote pathogenesis The objective current study was to investigate innate immune response circulating lev...
The comparison of some hormonal and biochemical blood indices in healthy cows (C) and cows affected with retained foetal membranes (RFM) or puerperal metritis (PM) was the aim of the study. Blood samples were taken between 12 and 24 h (RFM) or 8-10 d (PM) after calving. The progesterone, 17-β oestradiol, cholesterol, glucose, ketone bodies (KB) and free fatty acids (FFA) levels were similar in ...
To explore how hoof pathologies affect the gait of dairy cattle, we studied gait profiles of cows with no visible injuries (n = 17), sole lesions (n = 14), and sole ulcers (n = 7). Video recordings of dairy cows were digitized using motion analysis software to calculate 6 stride variables for each hoof. Compared with cows with sole ulcers, healthy cows walked faster (1.11 +/- 0.03 vs. 0.90 +/- ...
Stillbirth and dystocia are major factors that negatively affect beef production. We sought to clarify serum selenium and liposoluble vitamin levels in Japanese Black cows that gave birth to stillborn calves (stillbirth cows). Blood samples were collected from 103 stillbirth cows and 95 cows that gave birth to healthy calves (control cows). Serum levels of selenium (45.8 ± 16.0 ng/ml) and vitam...
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