Timely Topics

In utero exposure to thermal stress has long-term effects on mammary gland microstructure and function in dairy cattle

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. Read

Physically adjusted neutral detergent fiber system for lactating dairy cow rations. II: Development of feeding recommendations

By Robin R. White, Mary Beth Hall, Jeffrey L. Firkins, Paul J. Kononoff

This study by U.S. researchers quantifies the links between neutral detergent fiber (NDF) intake, diet particle size and ruminal pH. Read

Rumen pH

Effect of concentrate presentation form on concentrate wastage, eating pattern, and concentrate preference in Holstein bulls fed a finishing high-concentrate diet

By M. Verdú, A. Bach, M. Devant

This study evaluates the effect of concentrate presentation on ruminant feeding behavior. Read

beef cattle

Current perspectives on eating and rumination activity in dairy cows

By K.A.Beauchemin

In this paper, the authors compiled a comprehensive understanding of the dietary, animal, and management factors that affect eating and ruminating behavior in dairy cows. Read

Ruminating activity

Weaning age affects growth, feed intake, gastrointestinal development, and behavior in Holstein calves fed an elevated plane of nutrition during the preweaning stage

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. Read

Calving/transition Feeding behavior

Development of Ruminal and Fecal Microbiomes Are Affected by Weaning But Not Weaning Strategy in Dairy Calves

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. Read

Calving/transition

Effects of a completely pelleted diet on growth performance in Holstein heifers

By E. Bonfante, A. Palmonari, L. Mammi, G. Canestrari, M. Fustini, A. Formigoni

This study evaluates the effects of pelleting a forage-based diet on rumen health, fiber digestibility and animal performance. Read

Development and physiology of the rumen and the lower gut: Targets for improving gut health

By Michael A. Steele, Greg B. Penner, Frédérique Chaucheyras-Durand, Le Luo Guan

This study takes a closer look at how diet and microbiota can affect growth and influence functions in the intestinal tract. Read

Rumen development

Rumen acidosis in the context of precision farming

Download the final report of The first international conference dedicated to acidosis and rumen health, including video recordings. Read

Rumen pH

Key role of short-chain fatty acids in epithelial barrier failure during ruminal acidosis

By Meissner. S, Hagen. F, Deiner. C, Günzel. D, Greco. G, Shen. Z, Aschenbach. JR

Sub Acute Ruminal Acidosis (SARA) is induced by high concentrations of short-chain fatty acids (SCFA) that result in lower ruminal pH and damage to the epithelial barrier function. The present study investigated if SCFA directly contribute to epithelial barrier failure. Read

Acidosis Rumen pH

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