Evaluating the Inclusion of Cold-Pressed Rapeseed Cake in the Concentrate for Dairy Cows upon Ruminal Biohydrogenation Process, Ruminal Microbial Community and Milk Production and Acceptability
Idoia Goiri,
Izaro Zubiria,
Jose Luís Lavín,
Hanen Benhissi,
Raquel Atxaerandio,
Roberto Ruiz,
Nerea Mandaluniz,
Aser García-Rodríguez
Affiliations
Idoia Goiri
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Izaro Zubiria
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Jose Luís Lavín
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Hanen Benhissi
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Raquel Atxaerandio
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Roberto Ruiz
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Nerea Mandaluniz
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
Aser García-Rodríguez
Campus Agroalimentario de Arkaute s/n, NEIKER-Basque Institute for Agricultural Research and Development, Basque Research and Technology Alliance (BRTA), 01192 Vitoria-Gasteiz, Spain
The aim of this trial was to assess the effect of feeding a concentrate including cold-pressed rapeseed cake (CPRC) on productive performance, milk quality and its sensory properties, ruminal biohydrogenation, and bacterial communities. Eighteen cows were paired, and two experimental diets (control vs. CPRC) were distributed within the pair. Concentrates were iso-energetic and iso-proteic and contained similar amounts of fat. The average days in milk, milk yield, and body weight of the animals were (mean ± SD) 172 ± 112 d, 585 ± 26 kg, and 25.4 ± 6.2 kg/d, respectively. The experiment lasted for 10 wk. Feeding CPRC resulted in lower ruminal saturated (p p = 0.002) fatty acids. Feeding CPRC increased Ruminococcus, Prevotella, and Entodinium but decreased Blautia; p-75-a5; undefined genera within orders Clostridiaceae and RF39 and within families Christensenellaceae, Lachnospiracease, and Ruminococcaceae; and fungi from the phylum neocallimastigomycota. The milk fatty acid profile was characterized by a lower n6:n3 ratio (p = 0.028). Feeding CPRC did not affect the milk yield, milk quality, or fat corrected milk (p > 0.05). Feeding CPRC improved the overall milk acceptability (p = 0.047). In conclusion, CPRC affected some microbial taxa, modified the biohydrogenation process, and improved the milk fatty acid profile and consumer acceptance without detrimental effects on milk production and composition.
