Estimation of milk leakage into the rumen of milk-fed calves through an indirect and repeatable method
| Autor: | M.S. Gilbert, Etienne Labussière, J.J.G.C. van den Borne, H. Berends, Walter J. J. Gerrits |
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| Přispěvatelé: | Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA), Animal Nutrition Group, Wageningen University and Research Centre [Wageningen] (WUR), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA), Wageningen University and Research [Wageningen] (WUR), Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
milk replacer
volumétrie Rumen animal structures Milk intake Animal Nutrition [SDV]Life Sciences [q-bio] growth ultrasonographie Urine Biology SF1-1100 Eating transit abomasum size caillette lait de remplacement Ingestion Animals nutrition animale Food science 2. Zero hunger calf business.industry veau Abomasum food and beverages ultrasonography calf milk replacer ruminal drinking ultrasonography abomasum size Animal Feed reticular groove reflex Diervoeding Diet Animal culture Linear relationship Milk ruminal drinkers Dietary Supplements Fermentation ruminal drinking WIAS acetaminophen absorption test Animal Science and Zoology Cattle Ultrasonography veal calves business performance |
| Zdroj: | Animal, 8(10), 1643-1652 Animal, Vol 8, Iss 10, Pp 1643-1652 (2014) Animal 8 (2014) 10 Animal 10 (8), 1643-1652. (2014) animal animal, Cambridge University Press (CUP), 2014, 8 (10), pp.1643-1652. ⟨10.1017/S1751731114001670⟩ Animal Animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2014, 8 (10), pp.1643-1652. ⟨10.1017/S1751731114001670⟩ animal, Published by Elsevier (since 2021) / Cambridge University Press (until 2020), 2014, 8 (10), pp.1643-1652. ⟨10.1017/S1751731114001670⟩ |
| ISSN: | 1751-7311 1751-732X |
| DOI: | 10.1017/S1751731114001670⟩ |
| Popis: | In milk-fed calves, quantification of the milk that enters the rumen (ruminal milk volume, RMV) because of malfunction of the esophageal groove reflex may explain part of the variability observed between animals in their growth performance. The RMV can directly be quantified by adding an indigestible marker to the diet and measuring its recovery in the rumen at slaughter, but this technique cannot be repeated in time in the same animal. The objective of the study was to evaluate three indirect methods for estimating RMV. The first method was based on the assumption that ruminal drinking delays and limits acetaminophen appearance in blood after ingestion of milk supplemented with acetaminophen. The second method was based on a negative linear relationship between RMV and urinary recovery of non-metabolizable monosaccharides (3-O-methylglucose, l-rhamnose and d-xylose) added to the milk, owing to rumen fermentation. In the third method, RMV was calculated as the difference between total milk intake and the increase in abomasal milk volume (AMV) at feeding, measured through ultrasonography shortly after feeding, or estimated from the mathematical extrapolation of AMV to feeding time, based on consecutive measurements. These methods were tested in three experiments where calves (n=22, 10 and 13) were bucket fed or partly tube fed (i.e. by inserting milk replacer into the rumen via a tube to mimic ruminal drinking). In addition, Co-EDTA and Cr-EDTA were used as an indigestible marker in one experiment to trace bucket-fed or tube-fed milk replacer, respectively, to measure RMV. The relationship between AMV measured by ultrasonography and AMV measured at slaughter improved when kinetics of AMV were extrapolated to the time of slaughter by mathematical modeling (error between predicted and measured AMV equaled 0.49 l). With this technique, RMV during feeding averaged 17% and 24% of intake in Experiments 2 and 3, respectively. Plasma acetaminophen kinetics and recovery of non-metabolizable monosaccharides in urine were partly associated with ruminal drinking, but these techniques are not considered quantitatively accurate without further information of rumen degradation and absorption. The recovery of indigestible marker measured at slaughter gave a quantitative estimate of RMV (2% in Experiment 3), but improper measurement of emptying rate of fluid from the rumen may lead to underestimation. In conclusion, measuring changes in AMV by ultrasonography, in response to milk feeding, was the most promising indirect method to quantify RMV in veal calves. |
| Databáze: | OpenAIRE |
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