Results 61 to 70 of about 697,360 (389)

Molecular evaluation of Cryptosporidium spp. among breeding calves of Lorestan province Western Iran

Veterinary Medicine and Science, Volume 9, Issue 1, Page 363-371, January 2023., 2023
Cryptosporidium is a zoonotic protozoan common to humans and domestic animals To detect Cryptosporidium species, specific primers of SAM‐1 gene and commercial master mix were used for PCR Nine samples (5%) were positive for Cryptosporidium species by PCR method. Abstract Background Cryptosporidium spp.
Razieh Talebi, Amirreza Javadi Mamaghani, Farnaz Kheirandish, Azadeh Karimi, Farzad Ebrahimzadeh, Mohamad Kazempour, Nozhat Zebardast, Shirzad Fallahi   +7 more
wiley   +1 more source

Possible causes and treatment strategies for the estrus and ovulation disorders in dairy cows

The Journal of Reproduction and Development, 2022
The reproductive performance of dairy cows has declined, along with an increase in their milk yield. First-service conception rates in lactating dairy cows are often lower than 50%.
Natsumi ENDO
doaj   +1 more source

The miRNAome of the postpartum dairy cow liver in negative energy balance [PDF]

, 2014
peer-reviewedBackground: Negative energy balance (NEB) is an altered metabolic state in high yielding cows that occurs during the first few weeks postpartum when energy demands for lactation and maintenance exceed the energy supply from dietary ...
Fatima, Attia, Lynn, David J, Morris, Dermot G., O'Boyle, Padraic, Seoighe, Cathal   +4 more
core   +2 more sources

Assessment of rumen bacteria in dairy cows with varied milk protein yield.

Journal of Dairy Science, 2019
The present study was conducted to assess rumen bacteria in lactating cows with different milk protein yield, aiming to understand the role of rumen bacteria in this trait. Cows with high milk protein yield (high milk yield and high milk protein content,
Mingyuan Xue, Huizeng Sun, Xuehui Wu, L. Guan, J. Liu   +4 more
semanticscholar   +1 more source

Effect of omega‐3 polyunsaturated fatty acid supplementation on oxidative stress parameters and sex hormone levels of modern genotype sows

Veterinary Medicine and Science, Volume 9, Issue 1, Page 191-202, January 2023., 2023
In this study, we supplemented the diet of breeding sows either with omega‐6 (control) or omega‐3 (experimental) polyunsaturated fatty acids and examined their effects on the antioxidant system and hormone levels of the animals. In the blood levels of molecules indicating oxidative stress we experienced slight changes, but the feeding of omega‐3 fatty ...
Róbert Roszkos, Tamás Tóth, George Bazar, Hedvig Fébel, Miklós Mézes   +4 more
wiley   +1 more source

Western Canadian dairy farmers' perspectives on the provision of outdoor access for dairy cows and on the perceptions of other stakeholders

Journal of Dairy Science, 2022
: The provision of pasture and outdoor access for dairy cattle differs around the globe. For example, in Ireland, New Zealand, and Australia, dairy farms are largely pasture based, whereas dairy farms in the United States and Canada are largely ...
Anne-Marieke C. Smid, Saskia de Jong, Pauline H.J. Inberg, Shane Sinclair, Marina A.G. von Keyserlingk, Daniel M. Weary, Herman W. Barkema   +6 more
doaj  

Serum lipolysaccharide concentrations of dairy cows in pre- and postpartum period and with subclinical laminitis [PDF]

Journal of Central European Agriculture
The aim of this study was to compare the LPS blood concentrations and metabolic status in the peripartum period and in the late lactation phase in dairy cows.
Pavel Gomulec, Pavol Mudroň
doaj   +1 more source

Invited review: Metabolic challenges and adaptation during different functional stages of the mammary gland in dairy cows: Perspectives for sustainable milk production.

Journal of Dairy Science, 2019
Milk production of dairy cows has increased markedly during recent decades and continues to increase further. The evolutionarily conserved direction of nutrients to the mammary gland immediately after calving provided the basis for successful selective ...
J. Gross, R. Bruckmaier
semanticscholar   +1 more source

Prevalence, antimicrobial resistance, and staphylococcal toxin genes of blaTEM‐1a‐producing Staphylococcus aureus isolated from animals in Chongqing, China

Veterinary Medicine and Science, Volume 9, Issue 1, Page 513-522, January 2023., 2023
The average isolation rate of livestock‐associated S. aureus is 6.5%, and the S. aureus isolates showed high resistance to a wide range of antimicrobials. Most strains, with the exception of three chicken‐associated strains, harbored blaTEM‐1a gene. All S.
Qingshuang Dong, Qing Wang, Yun Zhang, Yao Chen, Haoju Wang, Honglei Ding   +5 more
wiley   +1 more source

Use of system fleckscore in the evaluation of body conformation in Slovak Spotted dairy cows

Acta Fytotechnica et Zootechnica, 2016
Paper is focused to use of the Fleckscore system for evaluation of main body conformation traits – body frame, musculature, feet & legs and udder in the Slovak Spotted dairy cows in the first lactations (n = 15,779), in the second lactations (n = 2,138)
Peter Strapák , Eva Strapáková, Peter Juhás   +2 more
doaj   +1 more source