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Evaluation of the f...
Evaluation of the feed intake models in the Nordic feed evaluation system NorFor
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- Krizsan, Sophie Julie (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för norrländsk jordbruksvetenskap,Department of Agricultural Research for Northern Sweden
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- Höjer, Annika (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för norrländsk jordbruksvetenskap,Department of Agricultural Research for Northern Sweden
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- Hetta, Mårten (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för norrländsk jordbruksvetenskap,Department of Agricultural Research for Northern Sweden
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- Huhtanen, Pekka (author)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för norrländsk jordbruksvetenskap,Department of Agricultural Research for Northern Sweden
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(creator_code:org_t)
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- 2014-06-23
- 2014
- English.
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In: Acta Agriculturae Scandinavica, Section A - Animal Science. - : Informa UK Limited. - 0906-4702 .- 1651-1972. ; 64, s. 110-122
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https://res.slu.se/i...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The objective of this study was to evaluate the feed intake models in the Nordic feed evaluation system NorFor. Data from 196 feeding experiments with dairy cows, and 17 experiments of periodical data, and 135 experiments of complete data with growing cattle were used in the evaluation by mixed model regression. The feed intake by both dairy cows and growing cattle were overestimated by the models. A linear bias indicated that over prediction increased with level of intake both by dairy cows and growing cattle. Most animal and diet factors were significantly related to the residuals, which indicated that those factors did not act independently in the predictions of feed intake. This kind of errors can restrict future ration formulation and animal performance, since animal production parameters included in the prediction models will be a consequence of the diet fed at the time they were measured.
Subject headings
- LANTBRUKSVETENSKAPER -- Husdjursvetenskap -- Husdjursvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Animal and Dairy Sience -- Animal and Dairy Science. (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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