Volume 17
Issue 3
Veterinary Medicine
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume17/issue3/abs-06.html
EFFECT OF SUPPLEMENTING DAIRY COWS WITH LIVE YEASTS CELLS AND DRIED BREWER’S YEASTS ON MILK CHEMICAL COMPOSITION, SOMATIC CELL COUNT AND BLOOD BIOCHEMICAL INDICES
Marian Kuczaj1, Jerzy Pre¶2, Andrzej Zachwieja1, Jan Twardoń3, Janusz Orda2, Aleksander Dobicki1
1 Institute of Animal Breeding, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
2 Department of Animal Nutrition and Feed Management, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
3 Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroc³aw University of Environmental and Life Science, Poland
ABSTRACT
The aim of the study was to verify the activity of brewer’s yeasts (Saccharomyces
cerevisiae) given to cows in various forms – live S.c. yeasts cells
and dried S.c. yeasts – before calving (21 days) and after calving (80
days) on the chemical composition of milk, somatic cell count in milk, and on
some physiological-biochemical parameters of the cows’ blood and their
health status. The experiment was conducted in a cattle farm at Malerzowice Ma³e
on 75 cows of Polish Holstein-Friesian breed (red and white variety) maintained
in the tether system; the cows calved in summer season. The experiment included
2 experimental groups, and the control one, 25 cows in each. All groups of cows
were fed with feeding dose balanced according to INRA standards. Dry animals
were given complete TMR dose with straw addition, and milking cows – basic
dose, partially mixed (PMR), standardized on the yield of 16 kg milk per day.
The animals had constant access to water and salt licks. Mean milk yield from
the cow on farm was ca. 7000 kg. The cowshed stayed under constant veterinary
supervision, it was free from infectious diseases – contagious and invasive
ones. The following additives were introduced to the basic doses: brewer’s
yeasts preparation (Saccharomyces cerevisiae) Leiber BT in amount of 200 g/head/day
(gr. I) and an addition of 1 g/head/day of live yeasts (gr. II). Fat content
in milk increased significantly in the group of cows receiving dried yeasts addition,
and their health status was improved. Also some blood biochemical indices in
these cows (protein and globulins level) were higher. An addition of dried yeasts
(dead cells) used prepartum caused a significant increase in the level of GGTP,
lactic acid, and a significant decrease in urea content compared to the control
group. Significant increase in the level of AST, proteins, globulins and glucose
and a decrease in urea content was noted at the 80th day of lactation in the
group receiving dried yeasts addition. Significant increase in GTP and glucose
and significant decrease in the content of lactic acid and cholesterol were noted
in a period of 80 days of lactation in cows from group II (live yeasts addition).
Other values in cows fed with live cells of Saccharomyces cerevisiae yeasts were
like in the control group. Both before and after calving, the level of haptoglobin
in cows blood was similar. No symptoms of inflammatory states related to yeasts
application were noted.
Key words: lactating cows, brewer yeast, milk components, somatic cells, serum indices, haptoglobin, cows health status.
Marian Kuczaj
Institute of Animal Breeding, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
Che³mońskiego 38 C
51-630 Wroc³aw, Poland
Phone +48 71 32-05-860
fax: +48 71 32-05-764
email: marian.kuczaj@up.wroc.pl
Jerzy Pre¶
Department of Animal Nutrition and Feed Management, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
Che³mońskiego 38 C
51-630 Wroc³aw, 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, Wroc³aw University of Environmental and Life Science, Poland
Che³mońskiego 38 C
51-630 Wroc³aw, Poland
Phone +48 71 32-05-765
fax: +48 71 32-05-765
email: andrzej.zachwieja@up.wroc.pl
Jan Twardoń
Department of Reproduction and Clinic of Farm Animals, Faculty of Veterinary Medicine, Wroc³aw University of Environmental and Life Science, Poland
pl. Grunwaldzki 47
50-366 Wroc³aw, Poland
Phone +48 71 32-05-306
fax: +48 71 32-05-302
email: jan.twardon@up.wroc.pl
Janusz Orda
Department of Animal Nutrition and Feed Management, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
Che³mońskiego 38 C
51-630 Wroc³aw, Poland
Phone +48 71 32-05-837
fax: +48 71 32-05-845
Aleksander Dobicki
Institute of Animal Breeding, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
Che³mońskiego 38 C, 51-630 Wroc³aw, 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.