Volume 14
Issue 2
Animal Husbandry
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume14/issue2/abs-03.html
THE EFFICIENCY OF THE REPLACEMENT OF PROTEIN MEAL BY DDGS - DRIED DISTILLER GRAINS WITH SOLUBLES IN THE RATION FOR DAIRY COWS DURING EARLY LACTATION
Tadeusz Szulc1, Andrzej Zachwieja2, Monika Demkowicz1, Irmina Newlacil1, Ewa Pecka1
1 Institute of Animal Breeding,
Wroc³aw University of Environmental and Life Sciences, Poland
2 Institute of Animal Breeding, Faculty of Biology and Animal Science, Wroc³aw University of Environmental and Life Science, Poland
ABSTRACT
The efficiency of the replacement of extracted soybean meal and rapeseed meal in the ration for dairy cows during early lactation with dried maize grain with solubles (DDGS) and its impact on performance, composition and physical characteristics of milk was determined. The study was conducted on 78 Polish Holstein-Friesian cows of Red-White variety with an average yield on a level of above 7000 kg of milk. In this study respectively: in group I – 0.5 kg extracted soybean meal and in group II – 1 kg rapeseed meal was replaced by 1 kg DDGS. An introduction of maize DDGS resulted in an increased productivity of dairy cows in the first group in the first month of study by 2.4 kg, reduced share of the milk fat and increased share of protein in milk, while in group II there was an increase in productivity by 1.95 and 1.86 kg in subsequent months. It also resulted in a significant increase of serum albumin, β-casein and α-lactalbumin level in milk from cows in I group, whereas a significant decrease in the level of those protein fraction was noticed in milk from group II. There were no changes in the physical characteristics of milk .
Key words: DDGS - dried distiller grains, dairy cows, milk production .
Tadeusz Szulc
Institute of Animal Breeding,
Wroc³aw University of Environmental and Life Sciences, Poland
Che³mońskiego 38C, 51-630 Wroc³aw, Poland
phone: 71 320 57 62
email: tadeusz.szulc@up.wroc.pl
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
Monika Demkowicz
Institute of Animal Breeding,
Wroc³aw University of Environmental and Life Sciences, Poland
Che³mońskiego 38C, 51-630 Wroc³aw, Poland
phone: 71 320 57 67
email: demkowicz.monika@gmail.com
Irmina Newlacil
Institute of Animal Breeding,
Wroc³aw University of Environmental and Life Sciences, Poland
Che³mońskiego 38C, 51-630 Wroc³aw, Poland
phone: 71 320 57 67
email: irmina.newlacil@gmail.com
Ewa Pecka
Institute of Animal Breeding,
Wroc³aw University of Environmental and Life Sciences, Poland
Che³mońskiego 38C, 51-630 Wroc³aw, Poland
phone: 71 320 59 25
email: pecka.ewa@gmail.com
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.