01942nam a2200229 a 450000100080000000500110000800800410001902200140006002400380007410000180011224501680013026001480029850003720044652007770081865300160159565300150161165300120162665300230163870000160166170000190167770000160169610642972023-08-18       2023    bl uuuu     u01u1 u    #d  a2772-283X7 a10.1016/j.anscip.2023.04.0332DOI1 aCAPELESSO, A.  aO32 (not presented). Effect of feeding strategy and cow genotype on feed efficiency in pasture-based feeding systems. [conference abstract].h[electronic resource]  aAnimal - science proceedings, July 2023, Volume 14, Issue 4, Pages 566-567. https://doi.org/10.1016/j.anscip.2023.04.033  -- OPEN ACCESS.c2023  aArticle history: Available online 4 August 2023, Version of Record 4 August 2023. -- Corresponding author: A. Capelesso. ascapelesso@gmail.com --  Part of special issue: 11th International Symposium on the Nutrition of Herbivores (ISNH 2023). 4-8 June 2023, Florianópolis, Brazil. (https://www.sciencedirect.com/journal/animal-science-proceedings/vol/14/issue/4 ) --  aFeed efficiency is a most common method to determine biological efficiency of milk production. One way to increase feed efficiency is to balance rations and make more strategic use of supplement. Admore, it is known that cows selected for milk yield have a higher feed efficiency when fed well-balanced diets ad libitum, but it is not clear how it is affected as pasture is included in the diet. Thereby, the aim of this study was to quantify the effect of feeding strategy (FS) and cow genotype (G) on individual animal performance and feed efficiency in pasture-based feeding systems during spring. The experiment was a randomized complete block design, with a 2?×?2 factorial arrangement of treatments, combining feeding strategies and Holstein Friesian cow genotypes.  aConcentrate  aDairy cows  aGrazing  aTotal mixed ration1 aFARIÑA, S.1 aCAJARVILLE, C.1 aMENDOZA, A.