Results 71 to 80 of about 334,407 (162)

MITOCHONDRIAL DNA POLYMORPHISMS AND FERTILITY IN BEEF CATTLE [PDF]

, 2002
Two regions of mitochondrial DNA, D-loop and ND-5 were characterized using polymerase chain reaction – restriction fragment length polymorphism (PCR-RFLP) involving 422 beef cattle of Hereford and composite breeds from Wokalup’s ...
A.J, Lymbery, J.M, Cummins, ., Sutarno, RCA, Thompson   +3 more
core  

Plasma Pharmacokinetic Profile of Fipronil 1% Pour‐On in Cattle: Photodegradation and the Sustained Systemic Persistence of Fipronil Sulfone

Journal of Veterinary Pharmacology and Therapeutics, Volume 49, Issue 5, Page 515-524, September 2026.
ABSTRACT This study characterized the long‐term pharmacokinetic profile of a 1% fipronil pour‐on formulation in Nellore bulls under field conditions. Seventeen animals received a single topical dose (1 mg/kg), and plasma concentrations of fipronil and its metabolites (sulfone and desulfinyl) were monitored for 175 days using LC–MS/MS.
Stefani Maria Ferreira, Leonila Ester Reinert Raspantini, Giselle Kindlein, Fabiano Barreto, Caroline Andrade Tomaszewski, Tamara dos Santos Castilhos, Daniel Rodrigo Hillesheim, Silvana Lima Górniak, André Tadeu Gotardo   +8 more
wiley   +1 more source

A meta-analysis of dry matter intake in Nellore and Zebu-crosses cattle Meta-análise do consumo de matéria seca em bovinos Nelore e mestiços

Revista Brasileira de Zootecnia, 2010
The study was carried out to develop and to evaluate new equations to predict dry matter intake (DMI) of Nellore and Zebu-crosses cattle using meta-analysis procedure.
José Augusto Gomes Azevêdo, Sebastião de Campos Valadares Filho, Douglas dos Santos Pina, Mario Luiz Chizzotti, Rilene Ferreira Diniz Valadares   +4 more
doaj   +1 more source

Cow Milk Risk Factors Associated With Bacterial Contaminations Along Dairy Value Chain in Lushoto and Handeni Districts, Tanzania

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Milk and milk products are important sources of nutrients to human and animals, but due to its physicochemical characteristics and nutritional value, it serves as an excellent medium for growth of microorganisms. Most of smallholder dairy farmers have no training on livestock husbandry and milk handling practices.
Fortunate Shija, Hezron Emmanuel Nonga
wiley   +1 more source

Status of On‐Farm Artificial Insemination Services and Effectiveness of Oestrus Synchronization in Dairy Cattle Under Small‐Scale Dairy Farming System

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Cross‐sectional survey and retrospective data on the oestrus synchronization were collected and analysed. The predominant mating system practiced by dairy farmers was AI (55.6%), and 73.5% of farmers apply controlled mating. The highest response rate and pregnancy rate were 89.5% and 45.2%, respectively, whereas a birth rate of 9.6%–18.5% was obtained.
Temesgen Milkias, Chencha Chebo, Alemayehu Worku   +2 more
wiley   +1 more source

Evaluation of Adaptive, Productive and Reproductive Performance of Boran Dairy Breed in the Lowland Agro‐Ecology of Kaffa Zone, South‐Western Ethiopia

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Boran dairy cattle demonstrated acceptable productive, reproductive and adaptive performance under lowland conditions of south‐western Ethiopia. Significant effects of parity and lactation stage were observed on milk yield and blood parameters, while physiological values remained within normal ranges, confirming good adaptation and potential for ...
Ephrem Worku Nigatu
wiley   +1 more source

Evaluation of Haemato‐Biochemical and Physiological Parameters of Different Dairy Breeds During the Dry and Wet Seasons in Central Ethiopia

Veterinary Medicine and Science, Volume 12, Issue 4, July 2026.
The study found that Borana, Jersey and cross‐bred dairy cows in central Ethiopia are well‐adapted to the local climate, with haemato‐biochemical and physiological parameters remaining within normal reference ranges despite significant seasonal variations.
Teshome Gemechu, Mitiku Eshetu, Yesihak Yusuf Mummed, Ulfina Galmessa, Aemiro Kehaliew   +4 more
wiley   +1 more source

Revisiting AFLP fingerprinting for an unbiased assessment of genetic structure and differentiation of taurine and zebu cattle [PDF]

, 2014
BACKGROUND: Descendants from the extinct aurochs (Bos primigenius), taurine (Bos taurus) and zebu cattle (Bos indicus) were domesticated 10,000 years ago in Southwestern and Southern Asia, respectively, and colonized the world undergoing complex events ...
Dolf, G., Rodellar, C, Lenstra, Johannes Arjen, Negrini, Riccardo, Kantanen, J., Dep Natuurkunde, Lucente, Giordana, Mommens, G., Garcia, José Fernando, Giordana Lucente, Ajmone-Marsan, Paolo, Algemeen Onderzoek DGK, Cañón, J., Wiener, P., Licia Colli, Olsaker, Ingrid, Garcia, José Fernando [UNESP], Polygen, VH, ?, ?, Ajmone Marsan, Paolo, Kantanen, J, Georg Erhardt, null null, Wiener, P, Williams, J., Zanotti, M, Lenstra, Johannes A., Riccardo Negrini, Erhardt, Georg, Paolo Ajmone-Marsan, Canon, J, Johannes Lenstra, Moazami-Goudarzi, K, Martín-Burriel, I., Mommens, G, Eythorsdottir, E, Rodellar, C., Utsunomiya, Yuri T., European Cattle Genetic Diversity, LS IRAS Tox Algemeen, Holm, L-E, José Garcia, Utsunomiya, Yuri Tani, Bradley, DG, Valentini, A., Valentini, A, Faculty of Veterinary Medicine Research Groups, Colli, Licia, Dunner, S., Yuri Utsunomiya, Olsaker, I., Bradley, D. G., Martin-Burriel, I, Moazami-Goudarzi, K., Zanotti, M., Holm, L. E., Lorenzo Bomba, Nijman, I. J., Bomba, Lorenzo, Garcia, José F., Williams, J, Utsunomiya, Yuri Tani [UNESP], Dunner, S, Dolf, G, Eythorsdottir, E., Nijman, IJ, Polygen, Van Haeringen   +66 more
core   +2 more sources

Genome-wide genetic diversity, population structure and admixture analysis in African and Asian cattle breeds

Animal, 2015
Knowledge about genetic diversity and population structure is useful for designing effective strategies to improve the production, management and conservation of farm animal genetic resources.
Z. Edea, M.S.A. Bhuiyan, T. Dessie, M.F. Rothschild, H. Dadi, K.S. Kim   +5 more
doaj   +1 more source

Prevalence and spatial distribution of Theileria parva in cattle under crop-livestock farming systems in Tororo District, Eastern Uganda [PDF]

, 2014
Tick-borne diseases (TBDs) present a major economic burden to communities across East Africa. Farmers in East Africa must use acaracides to target ticks and prevent transmission of tick-borne diseases such as anaplasmosis, babesiosis, cowdriosis and ...
Picozzi, Kim, Waiswa, Charles, Kabasa, John David, Jan Hatendorf, Dennis Muhanguzi, Susan Welburn, Charles Waiswa, John Kabasa, Hattendorf, Jan, Thrusfield, Michael, Welburn, Susan Christina, Muhanguzi, Dennis, Michael Thrusfield, Hatendorf, Jan, Kim Picozzi   +14 more
core   +1 more source