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Stockbreeding : Journal of Animal Improvement, Vol. 69 No. 1-2, 2015.

Original scientific paper

THE INFLUENCE OF DRIED WHEY SUPPLEMENTATION TO ALFALAFA HAYLAGE ON RATION INTAKE AND DIGESTIBILITY IN WETHER SHEEP

Marina Vranić ; University of Zagreb Faculty of Agriculture, Department of Field Crops, Forage and Grasses, Grassland Research Centre, Zagreb, Croatia
Krešimir Bošnjak ; University of Zagreb Faculty of Agriculture, Department of Field Crops, Forage and Grasses, Grassland Research Centre, Zagreb, Croatia
Josip Leto ; University of Zagreb Faculty of Agriculture, Department of Field Crops, Forage and Grasses, Grassland Research Centre, Zagreb, Croatia
Ivana Čačić ; University of Zagreb Faculty of Agriculture, Department of Field Crops, Forage and Grasses, Grassland Research Centre, Zagreb, Croatia
Jasna Pintar ; University of Zagreb Faculty of Agriculture, Department of Animal Nutrition, Zagreb, Croatia
Igor Stipić ; DUKAT d.d., dairy industry, Zagreb, Croatia
Martina Protulipac ; students, University of Zagreb Faculty of Agriculture, Zagreb, Croatia
Marina Bukal ; students, University of Zagreb Faculty of Agriculture, Zagreb, Croatia

Full text: croatian pdf 208 Kb

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Abstract

The objective of this paper was to determine the effect of 5 % and 10% in dry matter (DM) of dehydrated whey (DW) supplemented to alfalfa haylage (AH) (Medicago sativa L.) on the ration ad libitum intake and in vivo digestibility in wether sheep. The results show increase in ad libitum intake of DM (P<0.005) and organic matter (OM) (P<0.05) with DW supplementation but reduced in vivo digestibility of DM (P<0.01), OM (P<0.05) and crude protein (CP) (P<0.001). The level of DW supplementation (5% in comparison with 10%) did not influence AH ad libitum intake (P>0.05) neither in vivo digestibility (P>0.05). It was concluded 5% and 10% of DW supplementation to AH in wether sheep encourages intake of AH but decreases in vivo digestibility probably due to increased rate of the ration passage through the digestive system.

Keywords

ad libitum intake; alfalfa haylage; dried whey; in vivo digestibility

Hrčak ID:

170439

URI

https://hrcak.srce.hr/170439

Publication date:

17.2.2016.

Article data in other languages: croatian

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