Digestive development in neonatal dairy calves with either whole or ground oats in the calf starter

Journal of Dairy Science
F X Suarez-MenaJ D Quigley

Abstract

A series of 3 trials was conducted to determine effects of whole or ground oats in starter grain on reticulorumen fermentation and digestive system development of preweaned calves. Male Holstein calves (43.1±2.3kg at birth; n=8, 9, and 7 for trials 1, 2, and 3, respectively) were housed in individual pens in a heated facility; bedding was covered with landscape fabric to prevent consumption of bedding by the calves. In trials 1 and 2 only, calves were fitted with rumen cannulas by wk 2 of life. In all trials, a fixed amount of starter (containing 25% oats either ground and in the pellet or whole) was offered daily; orts were fed through the cannula in trials 1 and 2. Calves were randomly assigned to an all-pelleted starter or pellets plus whole oats. Rumen contents (trials 1 and 2) were sampled weekly at -8, -4, 0, 2, 4, 8, and 12 h after grain feeding for determination of pH and volatile fatty acids. Calves were killed 3 wk (trial 1) or 4 wk (trials 2 and 3) after grain was offered; organs were harvested, emptied, rinsed, and weighed to gauge digestive organ development. Starter intake was not different between treatments. Weekly measurements of rumen digesta pH did not change and only subtle changes were observed in molar pro...Continue Reading

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May 25, 2011·Journal of Dairy Science·F X Suarez-MenaR L Schlotterbeck

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Citations

Nov 21, 2017·Journal of Dairy Science·A F KertzJ K Drackley
Jul 10, 2020·PloS One·Aloma Eiterer LeãoDaniele Ribeiro de Lima Reis
Jul 31, 2019·Animals : an Open Access Journal From MDPI·Qiyu DiaoTong Fu
Aug 10, 2019·Frontiers in Microbiology·Laura M CersosimoGeoffrey I Zanton
Jul 8, 2019·Journal of Dairy Science·T T YoheK M Daniels
Jul 8, 2019·Journal of Dairy Science·T T YoheK M Daniels
Mar 10, 2021·Journal of Dairy Science·G A ChishtiA J Heinrichs

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