By J. Laporta, F.C. Ferreira, V. Ouellet, B. Dado-Senn, A.K. Almeida, A. De Vries, G.E. Dahl
Late-gestation heat stress exerts carryover effects on at least two generations. This quantifies the need for providing heat abatement to dry-pregnant dams to rescue milk loss and to prevent losses in their progeny.
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By Yo-Han Kim, Rie Nagata, Natsuki Ohtani, Toshihiro Ichijo, Kentaro Ikuta, and Shigeru Sato
This study demonstrated that feeding dietary forage alleviates subacute ruminal acidosis due to diurnal changes in ruminal pH.
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By Juliana Dias, Marcos Inácio Marcondes, Shirley Motta de Souza, Barbara Cardoso da Mata e Silva, Melline Fontes Noronha, Rafael Tassinari Resende, Fernanda Samarini Machado, Hilário Cuquetto Mantovani, Kimberly A. Dill-McFarland, Garret Suen
By N. J. Urie, J. E. Lombard, C. B. Shivley, C. A. Kopral, A. E. Adams, T. J. Earleywine, J. D. Olson, and F. B. Garry
If you’re not familiar with this piece, it’s a must-read and an important reference for factors contributing to the mortality and morbidity of dairy calves.
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By Melanie Schären, Kerstin Kiri, Susanne Riede, Mark Gardener, Ulrich Meyer, Jürgen Hummel, Tim Urich, Gerhard Breves, and Sven Dänicke
By Yo-Han KIM, Noriyuki TOJI, Keiichiro KIZAKI, Kei TAKEMURA, Shiro KUSHIBIKI, Shigeru SATO
In this 2019 paper published in The Journal of Veterinary Medical Science, the authors found feeding the only starter to calves decreases rumen pH at weaning with upregulation of the receptor TLR4. Feeding only starter lowered cholesterol synthesis in the rumen epithelium whereas starter and forage combined resulted in higher energy status.
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By X. Song, P. P. J. van der Tol, P. W. G. Groot Koerkamp, and E. A. M. Bokkers
This study demonstrated a low-cost 3D vision system that could automatically and remotely assess the reticulo-ruminal motility of dairy cows. The automated assessment performed similarly to referential manual assessment. In contrast to other available methods of reticulo-ruminal assessment, this automated system was noninvasive and did not distress the cows.
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By Robert D. Stewart, Marc D. Auffret, Amanda Warr, Alan W. Walker, Rainer Roehe, Mick Watson
This work offers a comprehensive analysis of more than 6.5 terabytes of Illumina and Nanopore sequence data, including assembly of 4,941 metagenome-assembled genomes, whole-chromosome assemblies of novel rumen bacteria.
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By H. M. Hammon, W. Liermann, D. Frieten, and C. Koch
The authors of this paper posit that a change in early calf management is needed to follow the natural processes of preweaning calf rearing for robust, well-performing dairy cows and bulls.
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By D.C. Sockett
Deep nasopharyngeal swabs are a simple and safe technique that has been validated as a way to test for bovine respiratory disease complex (BRDC).
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