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INFLUENCE OF DIETARY SELENIUM SUPPLEMENTATION TO EWES AND LAMBS ON PRODUCTION PERFORMANCE AND EXTERIOR CHARACTERISTICS OF LAMBS
Josip Novoselec
orcid.org/0000-0001-9763-3522
; Department for Animal Husbandry, Faculty of Agriculture, University of J.J. Strossmayer in Osijek, Osijek, Croatia
Zvonimir Steiner
; Department for Animal Husbandry, Faculty of Agriculture, University of J.J. Strossmayer in Osijek, Osijek, Croatia
Željka Klir
orcid.org/0000-0003-4078-6864
; Department for Animal Husbandry, Faculty of Agriculture, University of J.J. Strossmayer in Osijek, Osijek, Croatia
Ivica Matanić
Zvonko Antunović
; Department for Animal Husbandry, Faculty of Agriculture, University of J.J. Strossmayer in Osijek, Osijek, Croatia
Sažetak
The aim of this research was to determine the effect of dietary selenium supplementation (organic, inorganic) to high pregnant and lactating ewes on the production performance and exterior characteristics of their lambs. The research included 30 pregnant Merinolandschaf ewes and lambs. The control group of ewes and lambs ration (group I) was composed of 300 g/day/animal feed mixture without the addition of selenium and 150 g/day/animal, barley and alfalfa hay which they had ad libitum. Feed mixture of group II was supplemented with 0.3 mg/kg of Selplex®, and the third group with the same amount of Sodium selenite. The average body weight of lambs at the age of 23 days was significantly (P<0.05) bigger in the group given inorganic selenium in comparison to the control group. Addition of inorganic (P<0.01) or organic (P<0.05) selenium led to a significantly better exterior characteristics in lambs at the age of 63 days comparing them with the control group of lambs. A significant by (P<0.05) better indices of body proportions and body mass are evident in younger lambs whose mothers, and they, were fed mixtures with the addition of inorganic selenium. Indexes of anamorphosis, body condition and massiveness were better (P<0.05) in older lambs which had organic form of selenium added to feed mixture. Results of current study suggest that the form of Se source used in this research, has a limited potential for improving the production performance of lambs especially if there was no significant lack of selenium
Ključne riječi
ewes; lambs; selenium; production performance; exterior characteristics
Hrčak ID:
160809
URI
Datum izdavanja:
23.6.2016.
Posjeta: 2.150 *