Aufsatz
Inter- and Intra-Individual Variation in the Behavior of Feed Intake on Nutrient Availability in Early Lactating Dairy Cows
Abstract
Since energetic deficits in dairy cows can only be reduced at an animal level, the objective of the present study was to determine the extent of variation in intake behavior within and between animals during early lactation, to explore the magnitude of interactions between feed intake, intake behavior and nutrient digestibility, and to identify levers for maximizing feed intake at the individual animal level. Feeding behavior, intake and nutrient digestibility of 28 German Holstein dairy cows, fed TMR with 7.0 MJ NEL, were studied between the 2nd and 15th week after calving. Dry matter intake was assessed daily and nutrient digestibility weekly, with iNDF240 as an intrinsic marker. Results showed high intra- and inter-individual variation in intake behavior parameters with coefficients of variation (CV) up to 0.58 in meal frequency. Nutrient digestibility varied only slightly with CV values up to 0.10 in crude protein. Milk yield, meal frequency, feeding time, feeding rate and meal size had significant positive effects on DMI (p < 0.01). To achieve long-term improvements in feed intake, it is important to optimize feed intake and feeding behavior of individual animals by improving feeding conditions and develop technical tools to identify animals with insufficient feed intake.
Citation
In: Animals Volume 12 / Issue 1 (2021-12-24) eissn:2076-2615Sponsorship
Gefördert durch den Publikationsfonds der Universität KasselCitation
@article{doi:10.17170/kobra-202204266088,
author={Rumphorst, Theresa and Scheu, Theresa and Koch, Christian and Sundrum, Albert},
title={Inter- and Intra-Individual Variation in the Behavior of Feed Intake on Nutrient Availability in Early Lactating Dairy Cows},
journal={Animals},
year={2021}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2021$n2021 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/13782 3000 Rumphorst, Theresa 3010 Scheu, Theresa 3010 Koch, Christian 3010 Sundrum, Albert 4000 Inter- and Intra-Individual Variation in the Behavior of Feed Intake on Nutrient Availability in Early Lactating Dairy Cows / Rumphorst, Theresa 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/13782=x R 4204 \$dAufsatz 4170 5550 {{Milchkuh}} 5550 {{Trockenmasse}} 5550 {{Verdaulichkeit}} 5550 {{Aufnahme}} 5550 {{Verhalten}} 5550 {{Verfügbarkeit}} 7136 ##0##http://hdl.handle.net/123456789/13782
2022-04-26T04:48:04Z 2022-04-26T04:48:04Z 2021-12-24 doi:10.17170/kobra-202204266088 http://hdl.handle.net/123456789/13782 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ dairy cows variation digestibility dry matter intake intake behavior nutrient availability 630 Inter- and Intra-Individual Variation in the Behavior of Feed Intake on Nutrient Availability in Early Lactating Dairy Cows Aufsatz Since energetic deficits in dairy cows can only be reduced at an animal level, the objective of the present study was to determine the extent of variation in intake behavior within and between animals during early lactation, to explore the magnitude of interactions between feed intake, intake behavior and nutrient digestibility, and to identify levers for maximizing feed intake at the individual animal level. Feeding behavior, intake and nutrient digestibility of 28 German Holstein dairy cows, fed TMR with 7.0 MJ NEL, were studied between the 2nd and 15th week after calving. Dry matter intake was assessed daily and nutrient digestibility weekly, with iNDF240 as an intrinsic marker. Results showed high intra- and inter-individual variation in intake behavior parameters with coefficients of variation (CV) up to 0.58 in meal frequency. Nutrient digestibility varied only slightly with CV values up to 0.10 in crude protein. Milk yield, meal frequency, feeding time, feeding rate and meal size had significant positive effects on DMI (p < 0.01). To achieve long-term improvements in feed intake, it is important to optimize feed intake and feeding behavior of individual animals by improving feeding conditions and develop technical tools to identify animals with insufficient feed intake. open access Rumphorst, Theresa Scheu, Theresa Koch, Christian Sundrum, Albert doi:10.3390/ani12010037 Milchkuh Trockenmasse Verdaulichkeit Aufnahme Verhalten Verfügbarkeit publishedVersion eissn:2076-2615 Issue 1 Animals Volume 12 false 37
The following license files are associated with this item: