By V. Ouellet, J. Laporta, G.E. Dahl
Heat stress during the dry period has dramatic negative impacts on the cow and her offspring. Cows that experience heat stress in late gestation make less milk and are at greater risk of disease and nutritional issues.
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By Erin E. Connor, Ransom L. Baldwin VI, Cong-jun Li, Robert W. Li, Hoyoung Chung
In this study, molecular markers of rumen development and gene networks regulating the rumen epithelium were identified.
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By P Kazana, N Siachos, N Panousis, G Arsenos, G E Valergakis
A study from Aristotle University in Greece showed the ruminal pH of weaned calves is related to herd-level management of the pre-weaning period and weaning protocols.
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By E H Cabezas-Garcia, A W Gordon, C P Ferris
An altered metabolic state is common in high-yielding dairy cows during early lactation. A study in the United Kingdom set out to determine if blood metabolites — such as beta-hydroxy butyrate (BHB), glucose and non-esterified fatty acids (NEFA) — could be correlated to energy status (EB).
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By S.L. Gelsinger, W.K. Coblentz, G.I. Zanton, R.K. Ogden, M.S.Akins
Calves undergo a process of rumen development before, during and after weaning. Researchers are still seeking to understand the rumen microbiome development that happens. Click to read the whole study.
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By Amy L. Skibiel, Bethany Dado-Senn, Thiago F. Fabris, Geoffrey E. Dahl, Jimena Laporta
Milk yield is significantly lower in first-lactation heifers that experienced fetal heat stress. This study examines how the development of mammary glands are affected by heat stress during gestation.
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By E. Eckert, H.E. Brown, K.E. Leslie, T.J. DeVries, M.A. Steele
This study investigates the relationship between the age of weaning and feed intake — and its influence on growth, gastrointestinal development and behavioral indicators in preweaning dairy calves.
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By Sarah J. Meale, Shucong Li, Paula Azevedo, Hooman Derakhshani, Jan C. Plaizier, Ehsan Khafipour, Michael A. Steele
This research analyzes the pre- and post-weaning ruminal and fecal microbiomes of Holstein dairy calves exposed to either gradual or abrupt weaning strategies.
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By Cesar E. Guzman, Lara T. Bereza-Malcolm, Bert De Groef, Ashley E. Franks
This article provides insight into rumen microbial colonization, which is essential for calves’ future growth and digestive health.
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By Sarah J. Meale, Frederique Chaucheyras-Durand, Harma Berends, Le Luo Guan, Michael A. Steele
During weaning, ruminal adaptation and nutrient flow to the lower gastrointestinal tract dramatically change and the gut structure, permeability and function are altered.
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