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- Residual_feed_intake abstract "Residual feed intake (sometimes shortened in literature to RFI) is a resource allocation theory index used to calculate the feed efficiency of growing cattle. It was developed by Robert M. Koch in 1963 as an answer to the difficulties of using a feed conversion ratio to compare individual animals. Effective use of RFI data can greatly improve beef cattle farm profits.It was inspired by Koch's observations of the differences in how a maintained body weight and an increasing body weight affect the feeding of cattle. His research suggested that feed intake could be broken into two parts: The expected feed intake for the animal's level of production. The residual portion between the amount of feed the animal is expected to eat, and what the animal actually eats.Through the use of these two items, animals that deviate from the expected feed intake, either by eating more than or less than what's expected of them, can be identified and managed as the farmer sees fit. Because feed intake is heritable, knowing the RFI index of an animal is also useful when breeding. By selecting animals with the aim to reduce RFI, farmers can breed animals that eat less but continue at the same rate of production.There is no phenotype link between RFI and the characteristics used to calculate expected feed intake, which allows for the comparison of animals who function at differing production numbers. This has led some authors to believe that RFI is representative of individual differences in the metabolic processes of the animals. For example, one study shows that the amount of feed a Hereford bull requires to maintain a kilogram of body weight is closely related to genetic variation in its RFI. Similarly, in laying hens, variation in RFI is directly linked to variations in maintenance energy expenditure.".
- Residual_feed_intake wikiPageID "39927370".
- Residual_feed_intake wikiPageLength "2678".
- Residual_feed_intake wikiPageOutDegree "12".
- Residual_feed_intake wikiPageRevisionID "629043281".
- Residual_feed_intake wikiPageWikiLink Beef_cattle.
- Residual_feed_intake wikiPageWikiLink Category:Agriculture.
- Residual_feed_intake wikiPageWikiLink Category:Cattle.
- Residual_feed_intake wikiPageWikiLink Cattle.
- Residual_feed_intake wikiPageWikiLink Chicken.
- Residual_feed_intake wikiPageWikiLink Feed_conversion_ratio.
- Residual_feed_intake wikiPageWikiLink Hereford_(cattle).
- Residual_feed_intake wikiPageWikiLink Heritability.
- Residual_feed_intake wikiPageWikiLink Heritable.
- Residual_feed_intake wikiPageWikiLink Layer_hen.
- Residual_feed_intake wikiPageWikiLink Metabolic.
- Residual_feed_intake wikiPageWikiLink Metabolism.
- Residual_feed_intake wikiPageWikiLink Phenotype.
- Residual_feed_intake wikiPageWikiLink Resource_allocation.
- Residual_feed_intake wikiPageWikiLink Robert_M._Koch.
- Residual_feed_intake date "February 2014".
- Residual_feed_intake hasPhotoCollection Residual_feed_intake.
- Residual_feed_intake wikiPageUsesTemplate Template:Clarify.
- Residual_feed_intake wikiPageUsesTemplate Template:Reflist.
- Residual_feed_intake subject Category:Agriculture.
- Residual_feed_intake subject Category:Cattle.
- Residual_feed_intake hypernym Index.
- Residual_feed_intake type Work.
- Residual_feed_intake comment "Residual feed intake (sometimes shortened in literature to RFI) is a resource allocation theory index used to calculate the feed efficiency of growing cattle. It was developed by Robert M. Koch in 1963 as an answer to the difficulties of using a feed conversion ratio to compare individual animals.".
- Residual_feed_intake label "Residual feed intake".
- Residual_feed_intake sameAs m.0w7kk_f.
- Residual_feed_intake sameAs Q17078143.
- Residual_feed_intake sameAs Q17078143.
- Residual_feed_intake wasDerivedFrom Residual_feed_intake?oldid=629043281.
- Residual_feed_intake isPrimaryTopicOf Residual_feed_intake.