Multi-breed herd approach to detect breed differences in composition and fatty acid profile of cow milk

Carmen L. Manuelian, Mauro Penasa, Giulio Visentin, Anna Benedet, Martino Cassandro and Massimo De Marchi
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Carmen L. Manuelian: Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
Mauro Penasa: Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
Giulio Visentin: Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
Anna Benedet: Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
Martino Cassandro: Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy
Massimo De Marchi: Department of Agronomy, Food, Natural Resources, Animals and Environment, University of Padova, Legnaro, Italy

Czech Journal of Animal Science, 2019, vol. 64, issue 1, 11-16

Abstract: The objective of the present study was to estimate the effect of breed on milk fatty acid (FA) composition of dairy (Brown Swiss, Holstein-Friesian, and Jersey) and dual-purpose cows (Simmental and Alpine Grey) in multi-breed herds. Information on individual milk samples was collected during routine cow milk testing between 2011 and 2014, and consisted of 285 606 observations from 17 445 cows in 617 herds. Fixed effects included in the mixed model were breed, parity, stage of lactation and the interaction between parity and stage of lactation, and random effects were cow, herd-test-date and residual. Contrast estimates for the studied traits were used to compare specific sets of breeds. Holstein-Friesian produced more milk than the other cattle breeds, with the greatest trans FA and C18:1 and the lowest C18:0 content. Comparison between the specialised dairy vs the dual-purpose breeds highlighted significant differences for all traits except for polyunsaturated FA and trans FA content. Specialised dairy breeds had greater milk saturated FA, short-chain FA, medium-chain FA, C14:0 and C16:0 content, and dual-purpose breeds produced milk with greater content of monounsaturated FA, long-chain FA, C18:0 and C18:1. Results demonstrated that, although specialised dairy produced more milk than dual-purpose breeds, milk FA profile of the latter was more favourable from a human nutrition point of view.

Keywords: dairy specialised breed; dual-purpose breed; mid-infrared spectroscopy; phenotyping (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:64:y:2019:i:1:id:18-2018-cjas

DOI: 10.17221/18/2018-CJAS

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