{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,3]],"date-time":"2026-08-03T16:25:51Z","timestamp":1785774351028,"version":"3.56.0"},"reference-count":45,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2022,12,23]],"date-time":"2022-12-23T00:00:00Z","timestamp":1671753600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Animal Physiology Nutrition"],"published-print":{"date-parts":[[2023,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Knowledge about individual daily herbage dry matter (DM) intake (DMI) helps identifying efficient dairy cows and adapting supplementation better to herbage intake and nutrient requirements of grazing dairy cows. With the aid of behavioural characteristics, raw data recorded with the RumiWatch (RW) system and processed with the RW converter 0.7.3.31 (C31), estimation of herbage DMI may be possible. First, C31, which allows differentiation of prehension bites and mastication chews, was validated through direct observation of behavioural characteristics and compared to the previous RW converter 0.7.3.11 (C11). Further, the influence of a low and high pre\u2010grazing herbage mass (HM), with the same target herbage allowance (HA), on bite mass, DMI, number of prehension bites, and milk production was investigated. In total, 24 lactating Holstein cows were pairwise allotted to one of two HM treatments. The cows received a new pasture paddock twice per day with a daily target HA of 22\u2009kg DM per cow\/day. On average, low HM (LHM) and high HM (HHM) paddocks had an HM of 589 and 2288\u2009kg DM\/ha, respectively, above 6.7 click units (1 CU\u2009=\u20090.5\u2009cm). Overall, LHM cows produced 2.7\u2009kg\/day more milk and 2.5\u2009kg\/day more energy\u2010corrected milk, had the same herbage DMI and a similar prehension bite mass. The averaged bite mass per week was 0.49\u2009g DM\/bite (LHM) or 0.47\u2009g DM\/bite (HHM), respectively. A longer eating time (617 vs. 559\u2009min\/day) and a shorter rumination time (297 vs. 365\u2009min\/day) were observed for the LHM cows compared with the HHM cows. The validation of the RW showed similar results for C11 and C31 apart from prehension bites, where C31 showed a mean absolute deviation of 12.4%. Pre\u2010grazing HM had no effect on relevant behavioural characteristics for prospective intake estimation, namely, bite mass and number of prehension bites.<\/jats:p>","DOI":"10.1111\/jpn.13795","type":"journal-article","created":{"date-parts":[[2022,12,23]],"date-time":"2022-12-23T12:15:03Z","timestamp":1671797703000},"page":"1137-1148","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Influence of pre\u2010grazing herbage mass on bite mass, eating behaviour, and dairy cow performance on pasture"],"prefix":"10.1111","volume":"107","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0965-2753","authenticated-orcid":false,"given":"Markus","family":"Rombach","sequence":"first","affiliation":[{"name":"Agroscope, Animal Production Systems and Animal Health Ruminant Nutrition and Emissions Posieux Switzerland"},{"name":"Institute of Animal Science University of Bonn Bonn Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8147-1060","authenticated-orcid":false,"given":"Karl\u2010Heinz","family":"S\u00fcdekum","sequence":"additional","affiliation":[{"name":"Institute of Animal Science University of Bonn Bonn Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9374-2649","authenticated-orcid":false,"given":"Fredy","family":"Schori","sequence":"additional","affiliation":[{"name":"Agroscope, Animal Production Systems and Animal Health Ruminant Nutrition and Emissions Posieux Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,12,23]]},"reference":[{"key":"e_1_2_7_2_1","unstructured":"Agroscope. (2015). F\u00fctterungsempfehlungen und N\u00e4hrwerttabellen f\u00fcr Wiederk\u00e4uer (Feeding recommendations and nutrient tables for ruminants). 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Food products \u2014 Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content. ISO Geneva Switzerland."},{"key":"e_1_2_7_19_1","unstructured":"International Organization for Standardization (ISO)(2009). Animal feeding stuffs \u2010\u2010 Determination of calcium sodium phosphorus magnesium potassium iron zinc copper manganese cobalt molybdenum arsenic lead and cadmium by ICP\u2010AES. 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