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.
2005
Volume 8
Issue 4
Topic:
Animal Husbandry
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Bodarski R. , Wertelecki T. , Bommer F. , Gosiewski S. 2005. THE CHANGES OF METABOLIC STATUS AND LACTATION PERFORMANCE IN DAIRY COWS UNDER FEEDING TMR WITH GLYCERIN (GLYCEROL) SUPPLEMENT AT PERIPARTURIENT PERIOD, EJPAU 8(4), #22.
Available Online: http://www.ejpau.media.pl/volume8/issue4/abs-22.html

THE CHANGES OF METABOLIC STATUS AND LACTATION PERFORMANCE IN DAIRY COWS UNDER FEEDING TMR WITH GLYCERIN (GLYCEROL) SUPPLEMENT AT PERIPARTURIENT PERIOD

Rafa³ Bodarski1, Tomasz Wertelecki1, Felix Bommer2, Stanis³aw Gosiewski3
1 Department of Animal Nutrition and Feed Science, Wroc³aw University of Environmental and Life Sciences, Poland
2 Inter-Harz GmbH, Elmshorn, Germany
3 FHU OVER Poland

 

ABSTRACT



Experiment was conducted with 36 dairy cows (in II-VI lactation), divided as analogues to three groups per 12 weeks (3 weeks before calving to 0 day – day of calving and second period first 70 days of lactation): group I – without glycerin supplement, group II – 300 ml·head-1·day-1 and III – 500 ml·head-1·day-1 supplemented to daily feed ration. All cows were fed two kinds of TMR, according to DLG requirements for each physiological phases: for dry period and for the first 100 days of lactation. The body condition, feed intake, milk production, milk chemical composition and main blood metabolites as glucose, BHB, NEFA were analyzed in experimental period. Total milk production or mean daily milk yield in group II and III was higher in 10 weeks of lactation in comparison to control group about 14.6 and 12.5% respectively. With increase dose of glycerin the protein level in milk was increased (P<0.05). In group III in 3rd week of lactation the concentration of BHB in blood serum was higher but glucose lower in comparison to other groups. The concentration of NEFA in blood serum in group III in 1st and 3rd weeks of lactation and in group II in 3rd week after calving was lower in comparison to control (I) group. The feed intake (in DM) of TMR was better in both groups with supplemented glycerin in comparison to control, especially between 4. and 9. week of lactation (P<0.05). At 70 days in cows fed TMR with glycerin better body score condition index was observed in comparison to control (P<0.05).

Key words: dairy cows, glycerol, lactation performance, metabolite, periparturient.

Rafa³ Bodarski
Department of Animal Nutrition and Feed Science,
Wroc³aw University of Environmental and Life Sciences, Poland
Che³moñskiego 38 C, 51-630 Wroc³aw, Poland
email: bodarski@zoo.ar.wroc.pl

Tomasz Wertelecki
Department of Animal Nutrition and Feed Science,
Wroc³aw University of Environmental and Life Sciences, Poland
Che³monskiego 38 D, 51-630 Wroc³aw, Poland
email: wwwwtw@interia.pl

Felix Bommer
Inter-Harz GmbH, Elmshorn, Germany


Stanis³aw Gosiewski
FHU OVER 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.

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