Carpinelli, N A Rosa, F Grazziotin, R C B Osorio, J S
Published in
Journal of dairy science
The objective of this study was to evaluate the feasibility of using multiple 3-dimensional accelerometers to estimated individual dry matter intake (DMI) of lactating dairy cows. Twenty-four Holstein cows in late lactation were assigned into 2 groups, a calibration group (n = 12) and a validation group (n = 12). All cows were fitted with 3 sensors...
Sorge, Ulrike S Binger, Elizabeth M Schefers, Jeremy Plummer, Paul J
Published in
Journal of dairy science
The objectives of this study were (a) to evaluate skin biopsies of udder sores and negative control cows for the presence of mange and nonbacterial pathogens via histopathology and (b) to identify and compare bacterial abundance in the lesions of cows with udder sores and from the skin of healthy controls from the same farms. Cows from 3 dairy farm...
Gorden, P J Kleinhenz, M D Warner, R Sidhu, P K Coetzee, J F
Published in
Journal of dairy science
Flunixin is a nonsteroidal anti-inflammatory drug and the most commonly prescribed analgesic in cattle in the United States. Recently, the US Food and Drug Administration (FDA) approved a transdermal formulation of flunixin for control of pyrexia associated with bovine respiratory disease and the control of pain associated with foot rot. The transd...
Anderson, Rachel C Dalziel, Julie E Haggarty, Neill W Dunstan, Kelly E Gopal, Pramod K Roy, Nicole C
Published in
Journal of dairy science
Colostrum plays an important role in initiating the development of the intestinal barrier in newborn mammals. Given its bioactivity, there is much interest in the potential use of bovine colostrum to improve human gastrointestinal health throughout the life span. There is evidence that bovine colostrum is effective at improving small intestinal bar...
Ghaffari, Morteza H Bernhöft, Katrin Etheve, Stephane Immig, Irmgard Hölker, Michael Sauerwein, Helga Schweigert, Florian J
Published in
Journal of dairy science
Fast and easy tests for quantifying fat-soluble vitamins such as vitamin E and vitamin A, as well as β-carotene, in whole blood without a need to preprocess blood samples could facilitate assessment of the vitamin status of dairy cattle. The objective of this study was to validate a field-portable fluorometer/spectrophotometer assay for the rapid q...
Maicas, C Hutchinson, I A Kenneally, J Grant, J Cromie, A R Lonergan, P Butler, S T
Published in
Journal of dairy science
Our objective in this study was to evaluate the reproductive performance of dairy heifers and cows inseminated with fresh or frozen sex-sorted semen (SS) in seasonal-calving pasture-based dairy herds. Ejaculates of 10 Holstein-Friesian bulls were split and processed to provide (1) fresh conventional semen at 3 × 106 sperm per straw (CONV); (2) fres...
Lopreiato, V Vailati-Riboni, M Bellingeri, A Khan, I Farina, G Parys, C Loor, J J
Published in
Journal of dairy science
Neutrophils are the most important polymorphonuclear leukocytes (PMNL), representing the front-line defense involved in pathogen clearance upon invasion. As such, they play a pivotal role in immune and inflammatory responses. Isolated PMNL from 5 mid-lactating Holstein dairy cows were used to evaluate the in vitro effect of methionine (Met) and cho...
Ede, Thomas Lecorps, Benjamin von Keyserlingk, Marina A G Weary, Daniel M
Published in
Journal of dairy science
Affective states, which refer to feelings or emotions, are a key component of animal welfare, but these are also difficult to assess. Drawing upon a body of theoretical and applied work, we critically review the scientific literature on the assessment of affective states in animals, drawing examples where possible from research on dairy cattle, and...
Stocco, Giorgia Cipolat-Gotet, Claudio Ferragina, Alessandro Berzaghi, Paolo Bittante, Giovanni
Published in
Journal of dairy science
Near-infrared spectroscopy (NIRS) has been widely used to determine various composition traits of many dairy products in the industry. In the last few years, near-infrared (NIR) instruments have become more and more accessible, and now, portable devices can be easily used in the field, allowing the direct measurement of important quality traits. Ho...
Costa, Angela Schwarzenbacher, Hermann Mészáros, Gábor Fuerst-Waltl, Birgit Fuerst, Christian Sölkner, Johann Penasa, Mauro
Published in
Journal of dairy science
Lactose is a sugar uniquely found in mammals' milk and it is the major milk solid in bovines. Lactose yield (LY, kg/d) is responsible for milk volume, whereas lactose percentage (LP) is thought to be more related to epithelial integrity and thus to udder health. There is a paucity of studies that have investigated lactose at the genomic level in da...
