Data/hora: 09/06/2024 05:23:32

Provedor de dados: | Organic Eprints
País: | Germany
Título: | Impact of US Brown Swiss genetics on milk quality from low-input herds in Switzerland: Interactions with grazing intake and pasture type
Autores: | Stergiadis, S.; Bieber, A.; Franeschin, E.; Isensee, A.; Eyre, M.D.; Maurer, V.; Chatzidimitriou, E.; Cozzi, G.; Bapst, B.; Stewart, G.; Gordon, A.; Butler, G.
Data: | 2015
Ano: | 2015
Palavras-chave: | Dairy cattle; Feeding and growth; Breeding and genetics.
Resumo: | This study investigated the effect of, and interactions between, contrasting crossbreed genetics (US Brown Swiss [BS] x Improved Braunvieh [BV] x Original Braunvieh [OB]) and feeding regimes (especially grazing intake and pasture type) on milk fatty acid (FA) profiles. Concentrations of total polyunsaturated FAs, total omega-3 FAs and trans palmitoleic, vaccenic, a-linolenic, eicosapentaenoic and docosapentaenoic acids were higher in cows with a low proportion of BS genetics. Highest concentrations of the nutritionally desirable FAs, trans palmitoleic, vaccenic and eicosapentaenoic acids were found for cows with a low proportion of BS genetics (0–24% and/or 25–49%) on high grazing intake (75–100% of dry matter intake) diets. Multivariate analysis indicated that the proportion of OB genetics is a positive driver for nutritionally desirable monounsaturated and polyunsaturated FAs while BS genetics proportion was positive driver for total and undesirable individual saturated FAs. Significant genetics x feeding regime interactions were also detected for a range of FAs.
Tipo: | Journal paper

Identificador:

http://orgprints.org/28021/1/Stergiadis_etal_2015_FoodChemistry.pdf

Stergiadis, S.; Bieber, A.; Franeschin, E.; Isensee, A.; Eyre, M.D.; Maurer, V.; Chatzidimitriou, E.; Cozzi, G.; Bapst, B.; Stewart, G.; Gordon, A. and Butler, G.   (2015) Impact of US Brown Swiss genetics on milk quality from low-input herds in Switzerland: Interactions with grazing intake and pasture type.   Food Chemistry, 175, pp. 609-618.

Relação: | http://orgprints.org/28021/
Formato: | application/pdf