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Abstract

Methane production from ruminant livestock varies with the diet as a result of factors such as dry matter intake, diet composition, and digestibility. To estimate the effect of dietary composition and feed additives, CH4 production can be measured in vitro as a first step because large numbers of...

Author(s)
Danielsson, R.; Ramin, M.; Bertilsson, J.; Lund, P.; Huhtanen, P.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2017, 100, 11, pp 8881-8894
Abstract

Ruminant production systems are important contributors to anthropogenic methane (CH4) emissions, but there are large uncertainties in national and global livestock CH4 inventories. Sources of uncertainty in enteric CH4 emissions include animal inventories, feed dry matter intake (DMI), ingredient...

Author(s)
Hristov, A. N.; Kebreab, E.; Niu, M.; Oh, J.; Bannink, A.; Bayat, A. R.; Boland, T. M.; Brito, A. F.; Casper, D. P.; Crompton, L. A.; Dijkstra, J.; Eugène, M.; Garnsworthy, P. C.; Haque, N.; Hellwing, A. L. F.; Huhtanen, P.; Kreuzer, M.; Kuhla, B.; Yu, Z.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 7, pp 6655-6674
Abstract

The objective of this work was to use a meta-analytical approach to evaluate the regulation of voluntary intake in cattle fed tropical forage-based diets using dietary digestibility and bulkiness. Treatment mean values were collected from 53 studies with lactating dairy cows and 126 studies with...

Author(s)
Detmann, E.; Gionbelli, M. P.; Huhtanen, P.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2014, 92, 10, pp 4632-4641
Abstract

Direct measurement of individual animal dry matter intake (DMI) remains a fundamental challenge to assessing dairy feed efficiency (FE). Digesta marker, is currently the most used indirect technique for estimating DMI in production animals. In this meta-analysis we evaluated the performance of...

Author(s)
Guinguina, A.; Ahvenjärvi, S.; Prestløkken, E.; Lund, P.; Huhtanen, P.
Publisher
Cambridge University Press, Cambridge, UK
Citation
Animal, 2019, 13, 10, pp 2277-2288
Abstract

Nutritional and animal-selection strategies to mitigate enteric methane (CH4) depend on accurate, cost-effective methods to determine emissions from a large number of animals. The objective of the present study was to compare 2 spot-sampling methods to determine CH4 emissions from dairy cows, using ...

Author(s)
Huhtanen, P.; Cabezas-Garcia, E. H.; Utsumi, S.; Zimmerman, S.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2015, 98, 5, pp 3394-3409
Abstract

A meta-analysis was conducted to compare ruminal fermentation and digestibility data and variability between continuous-culture (CC) experiments and in vivo data. One hundred eighty CC studies representing 1,074 individual treatments, published in refereed journals between 1980 and 2010 were used...

Author(s)
Hristov, A. N.; Lee, C.; Hristova, R.; Huhtanen, P.; Firkins, J. L.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2012, 95, 9, pp 5299-5307
Abstract

The objective of the present study was to compare digestion rates (kd) of NDF for different feeds estimated with the in situ method or derived from an automated gas in vitro system. A meta-analysis was conducted to evaluate how in situ derived kd of NDF related to in vivo digestibility of NDF....

Author(s)
Krizsan, S. J.; Jančík, F.; Ramin, M.; Huhtanen, P.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2013, 91, 2, pp 838-847
Abstract

Mixed model analysis of data from 32 studies (122 diets) was used to evaluate the precision and accuracy of the omasal sampling technique for quantifying ruminal-N metabolism and to assess the relationships between nonammonia-N flow at the omasal canal and milk protein yield. Data were derived from ...

Author(s)
Broderick, G. A.; Huhtanen, P.; Ahvenjärvi, S.; Reynal, S. M.; Shingfield, K. J.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2010, 93, 7, pp 3216-3230
Abstract

A meta-analysis was conducted using data from dairy cow production studies to evaluate silage metabolizable protein (MP) concentrations. The data consisted of 397 treatment means in 130 comparisons, in which the effects of silage factors (e.g., date of harvest, wilting, silage additives) were...

Author(s)
Rinne, M.; Nousiainen, J.; Huhtanen, P.
Publisher
American Dairy Science Association, Savoy, USA
Citation
Journal of Dairy Science, 2009, 92, 4, pp 1633-1642

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