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Effect of feeding diet containing fish oil and canola oil from transition period on milk production and components of Holstein cows in early lactation

Published online by Cambridge University Press:  22 November 2017

T Vafa ,
A Naserian ,
A Heravi Moussavi ,
R Valizadeh  and
M Danesh Mesgaran
T Vafa*
Affiliation:
Ferdowsi University of Mashhad, Mashhad, Khorasan, Islamic Republic of Iran
A Naserian
Affiliation:
Ferdowsi University of Mashhad, Mashhad, Khorasan, Islamic Republic of Iran
A Heravi Moussavi
Affiliation:
Ferdowsi University of Mashhad, Mashhad, Khorasan, Islamic Republic of Iran
R Valizadeh
Affiliation:
Ferdowsi University of Mashhad, Mashhad, Khorasan, Islamic Republic of Iran
M Danesh Mesgaran
Affiliation:
Ferdowsi University of Mashhad, Mashhad, Khorasan, Islamic Republic of Iran
*
Email: vafa_toktam@yahoo.com
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Extract

There are too many physiological and nutritional factors which can influence lactation performance of early lactation Holstein dairy cows. Supplemental fat sources are utilized in rations for dairy cows as a common method to increase the energy density of the diet, especially in early lactation (Juchem et al., 2007). The fat sources also have a positive effect on milk fatty acid profile. Canola seed which contains 40% fat is an excellent source of dietary fat high in unsaturated fatty acids and protein for dairy animals. Canola oil contains 51% oleic, 25% linoleic, and 14% linolenic acids. Fish oil contains relatively high concentrations fatty acids of the n-3 family. It seems that feeding a blend of different oils will have more positive productive response than individual usage of them. The aim of this study was to evaluate the effect of feeding diets containing fish oil and canola oil starting from transition period on milk production and composition of early lactating Holstein cows.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2009 , April 2009 , pp. 157
Copyright
Copyright © The British Society of Animal Science 2009

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References

Juchem, S.O., Santos, J.E.P.., Cerri, R.L.A.., Chebel, R.C.., Galv~ao, K.N.., Bruno, R.., DePeters, E.J.., Scott, T.., Thatcher, W.W.., and Luchini, D.. 2007. Effect of calcium salts of fish and palm oils on lactational performance of Holstein cows. Animal Feed Science and Technology.Google Scholar
Shingfield, K. J., Reynolds, C. K.., Hervas, G.., Griinari, J. M.., Grandison, A. S.., and Beever, D. E.. 2006. Examination of the Persistency of Milk Fatty Acid Composition Responses to Fish Oil and Sunflower Oil in the Diet of Dairy Cows. Journal of Dairy Science. 89, 714–732 Google Scholar