نتایج جستجو برای: cattle farms

تعداد نتایج: 70365  

2014
Dongwhee Choi Sangjin Lee Heesu Choi Yongwha Chung

Automatic detection of cow’s estrus is important in cattle management. This paper proposes a method of estrus detection by checking cattle mounting activity automatically. We use a video sensor and apply computer vision techniques to detect the mounting activity. Especially, we derive motion vectors in order to distinguish the mounting activity from other activities, based on computer vision te...

Journal: :علوم دامی 0
علیرضا آقاشاهی استادیار، موسسه تحقیقات علوم دامی کشور حسن فضائلی استاد، موسسه تحقیقات علوم دامی کشور علی مهدوی استادیار، دانشگاه سمنان عبدالرضا تیموری مربی، موسسه تحقیقات علوم دامی کشور مجید موافق قدیرلی دانش آموخته کارشناسی ارشد علوم دامی

this research was conducted to study the nutrient balance condition of dairy cattle in semi industrial dairy farms of sought west of tehran province (eslamshahr) by the questionnaire techniques. the farms based on the herd were categorized in 6 group as follows: 1(1-30), 2(31-60).3(61-100), 4(100-130), 5(130-200) and 200 heads upward. the 30 farms have been selected randomly based on the random...

Journal: :iranian journal of applied animal science 2012
a.k. talukder m. shamsuddin

we reportedhere data from a productivity veterinary service that was participatory planned and delivered on farms at the kanihari union belongs to mymensingh district of bangladesh. we used a set of five forms and a breeding calendar on farm visit once in a month to guide service delivery and acquisition of data and to keep the records on general cattle health, reproduction, udder health and fe...

Hafezi, Fereshteh , Mikhak, Hossein , Sadeghloo, Tahereh ,

Introduction Animal husbandry and livestock raising as the most important agricultural sub-sector reduces poorest peoplechr('39')s vulnerability all over the world by providing them a "food safety network". In this regard, ranchers are facing key challenges such as low yields of cattle, lack and fragmentation of pasture, water shortage and need to irrigate pastures and meadows, competition for...

Journal: :Revue scientifique et technique 2016
M Perez Ruano F V Lam Romero D Benítez Jiménez S Ríos Núñez J C Vargas Burgos R Quinteros Pozo X Rodríguez Villafuerte

A survey was carried out on dairy cattle farms in Pastaza province to analyse the degree of compliance with epidemiological surveillance activities (based on the main technical aspects in Ecuador's Guide to Good Dairy Farming Practices) and to assess the reduction of the risk of introducing disease into dairy cattle. Visits were made to 70 dairy and dual-purpose beef/dairy farms, where the surv...

Journal: :Applied and environmental microbiology 2006
M C Pearce J Evans I J McKendrick A W Smith H I Knight D J Mellor M E J Woolhouse G J Gunn J C Low

A national survey was conducted to determine the prevalence of Escherichia coli O26, O103, O111, and O145 in feces of Scottish cattle. In total, 6,086 fecal pats from 338 farms were tested. The weighted mean percentages of farms on which shedding was detected were 23% for E. coli O26, 22% for E. coli O103, and 10% for E. coli O145. The weighted mean prevalences in fecal pats were 4.6% for E. co...

2014
Brian Lassen Marie Ståhl Heidi L Enemark

BACKGROUND Cases of cryptosporidiosis have not been officially reported in Estonia after the year 2000, and the disease appears to be either under-diagnosed or under-reported. FINDINGS Based on a human case of cryptosporidiosis contracted during faecal sampling in dairy farms, cattle considered to be sources of infection were analysed for Cryptosporidium spp. by a modified Ziehl Neelsen techn...

2011
Annet G. J. Velthuis Monique C. M. Mourits Helmut W. Saatkamp Aline A. de Koeijer Armin R. W. Elbers

BACKGROUND Bluetongue (BT) is a vector-borne disease of ruminants caused by bluetongue virus that is transmitted by biting midges (Culicoides spp.). In 2006, the introduction of BTV serotype 8 (BTV-8) caused a severe epidemic in Western and Central Europe. The principal effective veterinary measure in response to BT was believed to be vaccination accompanied by other measures such as movement r...

Journal: :Journal of the South African Veterinary Association 2010
E S Swai E D Karimuribo D M Kambarage

A retrospective cross-sectional study of mortality was conducted on smallholder dairy farms in 2 separate regions (Iringa and Tanga) of Tanzania during the period of January to April 1999. A total of 1789 cattle from 400 randomly sampled smallholder dairy farms (200 each from Iringa and Tanga regions) were included in the study. These animals contributed a total risk period of 690.4 and 653.95 ...

2015
Robert Wolf Karin Orsel Jeroen De Buck Herman Wildrik Barkema

Mycobacterium avium subspecies paratuberculosis (MAP) causes Johne's disease, a chronic progressive enteritis. It is generally assumed that calves rarely shed MAP bacteria and that calf-to-calf transmission is of minor importance. The objectives were 1) to estimate the prevalence of MAP-shedding young stock in MAP-infected dairy herds, and identify predictors for test-positive young stock; and ...

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