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.: Home > Animal Science Papers and Reports > 2015 > Volume 34 Number 1 > Ludmila Křížová 1, **, Oto Hanuš 2 , Jiří Špička 3 , Eva Samková 3 , Jan Frelich 3 , Michal Richter 4 , Aleš Veselý 4 , Petr Roubal 2

Alternative supplemental mixture for organic dairy herds to maintain desirable milk fatty acid profile throughout the indoor feeding period

Ludmila Křížová 1, **, Oto Hanuš 2 , Jiří Špička 3 , Eva Samková 3 , Jan Frelich 3 , Michal Richter 4 , Aleš Veselý 4 , Petr Roubal 2
1 University of Veterinary and Pharmaceutical Sciences Brno, Faculty of Veterinary Hygiene and Ecology, Palackeho tr. 1946/1, 61242, Brno, Czech Republic 2 Dairy Research Institute, Ltd., Prague, Ke dvoru 12a, 16000 Praha 6, Czech Republic 3 University of South Bohemia, České Budějovice, Faculty of Agriculture, Studentská 13, 37005, České Budějovice, Czech Republic 4 Research Institute for Cattle Breeding, Ltd., Rapotín, Výzkumníků 267, 78813 Vikýřovice, Czech Republic
Abstract :
The aim of the study was to evaluate the effect of diet containing a supplemental mixture with
alternative components suitable for organic herds on the yield and composition of milk and the fatty
acid profile. The on-farm experiment was carried out on 12 dairy cows (mean lactation 2.3, on average
116 days in milk) that were divided into 2 groups. During the experiment cows were fed on a diet based
on maize silage (30 kg/d), lucerne hay (3 kg/d) and supplemental mixture (8 kg/d, all as fed basis).
control group (C) was fed a control supplemental mixture, while the experimental group (E) was
fed a supplemental mixture that contained rapeseed and sunflower components. The experiment
was carried out in the form of a cross-over design and was divided into 2 periods of 14 days (a 7-d
preliminary period and a 7-d experimental period). The total content of SFA was higher in C in
comparison to E (P<0.05).
The content of C18:0 was higher, while contents of C12:0, C14:0 and C16:0
were lower in E compared to C (P<0.05). The total contents of UFA, MUFA and PUFA were higher in
E than in C (P<0.05). The concentration of oleic acid (C18:1n9c) was considerably higher in E than in


Keywords :
dairy cows, milk fat, soybean, rapeseed cake, sunflower

Date Deposited : 24 Mar 2016 10:20

Last Modified : 24 Mar 2016 10:20

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Volume 34, Number 1, December 2015

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