Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2010
Volume 13
Issue 3
Topic:
Veterinary Medicine
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Kuczaj M. , Dobicki A. , Preś J. , Zachwieja A. , Jakus W. 2010. AN INFLUENCE OF DRIED BREWER’S YEAST (SACCHAROMYCES CEREVISIAE) ADDITION BEFORE AND AFTER CALVING ON YIELD AND CHEMICAL COMPOSITION OF MILK AND BIOCHEMICAL INDICES OF BLOOD IN THE FIRST 100 DAYS OF LACTATION, EJPAU 13(3), #12.
Available Online: http://www.ejpau.media.pl/volume13/issue3/abs-12.html

AN INFLUENCE OF DRIED BREWER’S YEAST (SACCHAROMYCES CEREVISIAE) ADDITION BEFORE AND AFTER CALVING ON YIELD AND CHEMICAL COMPOSITION OF MILK AND BIOCHEMICAL INDICES OF BLOOD IN THE FIRST 100 DAYS OF LACTATION

Marian Kuczaj1, Aleksander Dobicki1, Jerzy Preś2, Andrzej Zachwieja1, Wiesław Jakus3
1 Institute of Animal Breeding, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Science, Poland
2 Department of Animal Nutrition and Feed Management, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Science, Poland
3 Cattle Farm Malerzowice Małe, PRU Kłos RLLLP, Poland

 

ABSTRACT


The aim of the study was an assessment of an influence of dried brewer's yeasts addition on yield and chemical composition of milk of Polish Holstein-Friesian breed cows fed with PMR system, in the first 100 days of lactation, allowing of some biochemical parameters of blood. The experiment was conducted on 50 Polish Holstein-Friesian cows (Red-White variety) maintained in tied stalls. The cows calved in summer season randomly entered one of the two groups: experimental (n=25 heads) and control one (n=25 heads). An application of a preparation of dried brewer's yeasts (200 g/head/day) in dairy cows feeding 3 weeks before calving and in the first 100 days of lactation caused slightly higher fat content in milk, and statistically significant (p ≤ 0.05) increase in FCM milk yield (of 2.27 kg) as compared to cows from the control group that were not given such a feed supplement. Clearly decreased (however insignificant statistically) somatic cells count was observed in milk of cows that were given an addition of dried brewer's yeasts as compared to the control group. Proper values of biochemical indices of blood in both groups of cows demonstrate an appropriate energy-protein ratio of feeding doses used in an experimental period. An addition of dried brewer's yeasts given to cows before calving statistically significantly influenced the level of total protein and magnesium in blood, and content of urea, albumins, globulins and magnesium after calving. An application of an addition of dried brewer's yeasts should be recommended in high-yielding cows feeding, since it profitably influences an increase in FCM milk yield and some biochemical indices of blood.

Key words: cows, brewer’s yeasts, yield and chemical composition of milk, biochemical parameters of blood.


Marian Kuczaj
Institute of Animal Breeding, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Science, Poland
Chełmońskiego 38 C
51-630 Wrocław, Poland
Phone +48 71 32-05-860
fax: +48 71 32-05-764
email: marian.kuczaj@up.wroc.pl

Aleksander Dobicki
Institute of Animal Breeding, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Science, Poland
Chełmońskiego 38 C, 51-630 Wrocław, Poland

Jerzy Preś
Department of Animal Nutrition and Feed Management, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Science, Poland
Chełmońskiego 38 C
51-630 Wrocław, Poland
Phone +48 71 32-05-839
fax: +48 71 32-05-845

Andrzej Zachwieja
Institute of Animal Breeding, Faculty of Biology and Animal Science, Wrocław University of Environmental and Life Science, Poland
Chełmońskiego 38 C
51-630 Wrocław, Poland
Phone +48 71 32-05-765
fax: +48 71 32-05-765
email: andrzej.zachwieja@up.wroc.pl

Wiesław Jakus
Cattle Farm Malerzowice Małe, PRU Kłos RLLLP, Poland
Malerzowice 13, 48-385 Otmuchów, Poland

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.