Replacing human-edible feed ingredients with by-products increases net food production efficiency in dairy cows

Journal of Dairy Science
Johanna KarlssonKjell Holtenius

Abstract

Global demand for food is increasing, and use of large amounts of potentially human-edible feedstuffs for dairy cows is an important concern. The present study examined whether feeding a by-product-based concentrate combined with high-quality grass silage to high-producing dairy cows affected feed intake and milk production compared with a conventional diet, as well as the effect on efficiency of human food production. In a changeover experiment with four 21-d periods, 24 dairy cows in mid-lactation were offered 9.6 kg of dry matter per day with 1 of 4 concentrates and high-quality grass silage ad libitum. The control concentrate was based on cereal grain (wheat, oat, and barley) and soybean meal, whereas the 3 by-product-based concentrates contained sugar beet pulp in combination with mainly heat-treated rapeseed meal, distillers grain, or a mixture of both. All diets were formulated to be isoenergetic and isonitrogenous. The cows had 10-fold higher starch intake when fed the control diet than when fed the by-product-based concentrates. Silage intake (13 kg of dry matter/d) and milk production (33 kg of energy-corrected milk/d) were not affected by the change in diet. Therefore, replacing cereals and soybean meal with human-in...Continue Reading

References

Nov 20, 2009·Journal of Dairy Science·D J SchingoetheA D Garcia
Oct 14, 2011·Nature·Jonathan A FoleyDavid P M Zaks
Mar 24, 2012·Animal : an International Journal of Animal Bioscience·J M Wilkinson
Jan 9, 2013·Journal of Dairy Science·R MartineauH Lapierre
Mar 8, 2014·Nature·Mark C EislerMichael Winter
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Sep 23, 2014·Journal of Dairy Science·H M DannT Eguchi
Oct 30, 2016·Journal of the Science of Food and Agriculture·Mikaela PatelJan Bertilsson
Apr 8, 2017·Journal of the Science of Food and Agriculture·Christian SwenssonAnna-Karin Modin Edman

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Citations

Sep 18, 2020·Animals : an Open Access Journal From MDPI·Manuela RennaPaolo Cornale
Feb 17, 2021·Journal of Dairy Science·Getinet Mekuriaw TarekegnErling Strandberg
Nov 17, 2020·Frontiers in Veterinary Science·Tibor VerdunaLuca Maria Battaglini

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