Results 31 to 40 of about 87,003 (97)

Effects of dietary rumen-protected choline supplementation on genome-wide DNA methylation in mammary tissue from postpartum dairy cows

JDS Communications
Choline is a methyl donor that may influence DNA methylation, gene expression, and cellular processes. Past studies have found an increase in milk yield when periparturient dairy cows were supplemented with dietary rumen-protected choline (RPC); however,
A. Celemin Sarmiento, B.J. Bradford, L.K. Mamedova, G. Zhou, K.A. Estes, T.H. Swartz   +5 more
doaj   +1 more source

Effects of changes in diet energy density and milking frequency and a single injection of cabergoline at dry-off on feeding behavior and rumination time in dairy cows

JDS Communications, 2022
Dry-off is a typical management practice, but research on the effects of dry-off on feeding behavior in high-yielding cows is limited. The present study investigated the effects of 2 diet energy densities: lactation diet (normal energy density, NORM ...
G.A. Franchi, M.L.V. Larsen, M.S. Herskin, L. Foldager, M. Larsen, M.B. Jensen   +5 more
doaj   +1 more source

Dynamics of the lactose content and other osmotic agents in milk throughout lactation according to the cow's parity

JDS Communications
Milk lactose content (LC) is known to vary due to metabolic disorders and udder inflammation. To assess its ability to serve as a marker of these 2 disorders, it is important to first understand its dynamics for healthy cows, particularly its relation ...
A. Hamon, J. Guinard-Flament, A. Costa, A. Fischer, P. Faverdin, M. Gelé, A. Boudon, S. Lemosquet   +7 more
doaj   +1 more source

Comparison of lidocaine alone or in combination with a local nerve block of ethanol, bupivacaine liposome suspension, or oral meloxicam to extend analgesia after scoop dehorning in Holstein calves

JDS Communications, 2022
The American Veterinary Medical Association recommends the use of practices that reduce or eliminate pain and discomfort associated with dehorning. Identification of an effective, long-acting local anesthetic that is practical for producers to implement ...
Miriam S. Martin, Michael D. Kleinhenz, Abbie V. Viscardi, Shawnee R. Montgomery, Charley A. Cull, Jon E. Seagren, Kelly F. Lechtenberg, Johann F. Coetzee   +7 more
doaj   +1 more source

Use of MALDI-TOF to identify cryopreserved mastitis pathogens collected from 2003 to 2011 that were originally identified using conventional microbiological methods

JDS Communications
For decades, conventional microbiological methods have been used to identify bacterial causes of bovine mastitis. Although these methods are relatively accurate for identification of important mastitis pathogens, all diagnostic tests are imperfect, and ...
L. de Souza Ferreira, T. Showemimo, L.B. Juliano, Z. Rodriguez, P.L. Ruegg   +4 more
doaj   +1 more source

The effect of bovine leukemia virus on dairy cow longevity

JDS Communications, 2022
Bovine leukemia virus (BLV) is a retrovirus of cattle that infects approximately 45% of all US dairy cattle, with about 90% of US dairy herds having at least one infected animal. Studies have found BLV infection to be associated with multiple measures of
Oscar J. Benitez, Rebecca M. LaDronka, Bo Norby, Daniel L. Grooms, Paul C. Bartlett   +4 more
doaj   +1 more source

Influence of different processing methods on anti-trypsin activity in bovine colostrum

JDS Communications
Colostrum is important for supplying the bovine neonate with nutrients, bioactive substances, and immunoglobulins to acquire passive immunity. Trypsin inhibitory activity represents a general characteristic of the first bovine colostrum.
Lukas Trzebiatowski, Plamen Georgiev, Kathrin Büttner, Axel Wehrend   +3 more
doaj   +1 more source

Behavioral changes of metritic primiparous cows treated with chitosan microparticles or ceftiofur

JDS Communications, 2022
The main objective was to characterize behavioral changes in metritic primiparous cows treated with chitosan microparticles (CM) or ceftiofur (CEF). A secondary objective was to compare behavioral patterns of metritic cows with nonmetritic (NMET) cows ...
Jessica G. Prim, Eduardo B. de Oliveira, Anderson Veronese, Ricardo C. Chebel, Klibs N. Galvão   +4 more
doaj   +1 more source

Novel enrichment reduces boredom-associated behaviors in housed dairy cows

JDS Communications
There is currently societal interest and concern for dairy cow welfare. It has been suggested that boredom poses a welfare issue for dairy cows, particularly when presented with extended disposable time in housed environments that lack stimuli.
Alison L. Russell, Laura V. Randall, Nikki Eyre, Jasmeet Kaler, Martin J. Green   +4 more
doaj   +1 more source

Variance parameter estimation for age at puberty phenotypes under 2 levels of phenotype censorship

JDS Communications, 2022
Age at puberty (AGEP) is a moderately heritable trait in cattle that may be predictive of an animal's genetic merit for reproductive success later in life.
M.A. Stephen, S. Meier, M.D. Price, J.E. Pryce, C.R. Burke, C.V.C. Phyn, D.J. Garrick   +6 more
doaj   +1 more source