0.857
IF5
0.900
IF
Q3
JCR
0.92
CiteScore
0.405
SJR
Q2
SJR
20
MNiSW
165.24
ICV
ORIGINAL PAPER
 
CC-BY 4.0
 
 

Effect of fatty acid calcium salts from linseed oil on the yield and n-3 fatty acid content of milk and on blood plasma parameters of cows

F. Brzóska 1  
 
1
National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland
J. Anim. Feed Sci. 2006;15(3):347–360
Publish date: 2006-07-05
KEYWORDS:
ABSTRACT:
The study was carried out with 16 Red-and-White cows in a 4×4 Latin square design. In 4 periods of 21 days each, diets containing grass silage, maize silage, brewers grains and concentrate mixture containing calcium salts of fatty acids (CSFA) were given to cows at a rate of 0.28 kg/kg of milk obtained. Cows received CSFA at 0, 1.84, 3.54 or 5.40% of ration dry matter, which corresponded to 0, 316, 614 or 940 g of CSFA per day. The average milk yield of the cows was 27.2±0.55 kg/day and did not differ significantly between the groups. Feeding cows the CSFA supplement significantly increased the fat content of milk and daily fat production, while significantly reducing the protein content in milk and daily protein production, but significantly decreased the N-total, N-protein and N-casein contents of milk. The levels of stearic (C18:0), oleic (C18:0) and α-linolenic (C18:3) acids significantly increased, the level of myristic (C14:0) and palmitic acids (C16:0) in milk significantly decreased. The differences in the levels of unsaturated fatty acids (UFA) in milk were significant (23.91, 27.31, 31.92 and 36.21 g/100 g of fatty acids in the respective groups). The level of monounsaturated (MUFA) and polyunsaturated (PUFA) acids in milk significantly increased. The level of n-3 PUFA in milk increased from 1.20 to 2.25 g/100 g of fatty acids, which corresponded to an increase in synthesis from 9.6 to 20.1 g acids/day. CSFA significantly reduced the n-6 PUFA-to-n-3 PUFA ratio from 3.5 to 2.2 (P<0.05). CSFA from linseed oil significantly increased the level of hypocholesterolemic acids (DFA) in milk (31.83, 36.31, 43.33 and 48.71 g/100 g of fatty acids, respectively). The plasma concentration of total cholesterol and high-density lipoproteins decreased significantly under the influence of increasing CSFA doses.
CORRESPONDING AUTHOR:
F. Brzóska   
National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland
 
CITATIONS (5):
1. Intake and digestion of fatty acids by dairy cows fed whole flaxseed and Ca salts of flaxseed oil
C. Côrtes, D.C. da Silva-Kazama, R. Kazama, C. Benchaar, G.T.D. Santos, L.M. Zeoula, H.V. Petit
Animal Feed Science and Technology
2. Effect of oilseed type on milk fatty acid composition of individual cows, and also bulk tank milk fatty acid composition from commercial farms
K. E. Kliem, D. J. Humphries, C. K. Reynolds, R. Morgan, D. I. Givens
animal
3. Effect of dietary flax seed and oil on milk yield, gross composition, and fatty acid profile in dairy cows: A meta-analysis and meta-regression
M. Leduc, M.-P. Létourneau-Montminy, R. Gervais, P.Y. Chouinard
Journal of Dairy Science
4. Milk composition, milk fatty acid profile, digestion, and ruminal fermentation in dairy cows fed whole flaxseed and calcium salts of flaxseed oil1
C. Côrtes, D.C. da Silva-Kazama, R. Kazama, N. Gagnon, C. Benchaar, G.T.D. Santos, L.M. Zeoula, H.V. Petit
Journal of Dairy Science
5. MILK PRODUCING ABILITY AND FATTY ACID COMPOSITION OF MILK LIPIDS UNDER APPLICATION OF “BYPASS” OIL ADDITIVES IN THE DIET OF COWS
S. Pavkovych, S. Vovk, V. Balkovskyi, N. Ohorodnyk, M. Ivankiv, Ya. Sirko
Vìsnik Lʹvìvsʹkogo nacìonalʹnogo agrarnogo unìversitetu. Agronomìâ
ISSN:1230-1388