Original scientific paper
THE EFFECT OF THE FEEDING ADDITIVE "ZEOFEED" ON THE PERFORMANCE OF LAYING HENS
Pavel Suchý
; Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, the Czech Republic
Eva Straková
; Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, the Czech Republic
Nora Mas
; Veterinarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Vladimir Večerek
; Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, the Czech Republic
Vlasta Šerman
; Veterinarski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Abstract
The aim of the research was to test the effect of the feed preparation ZeoFeed (clinoptilolite) added to feed mixtures for laying hens (1%) on egg production and feed mixture consumption. During the testing period (315 days) the trial hens (60 Isa Brown laying hens fed mixtures with ZeoFeed /laid on average 5.53 eggs more per hen than the controls (60 Isa Brown laying hens fed mixtures without ZeoFeed). In the trial group of hens the intensity of egg laying was 1.75% higher ehen compared with the controls resulting in more eggs laid. Despite the proved lower (P 0.01) average egg weight of the trial hens (65.65 g vhen compared with the controls (66.32 g) the total production of egg weight during the 315 days of the testing was in the trial group (18 945.10 g) higher by 172.42 g per hen as compared with the control group (18 772.61 g). During the testing period the hens in the trial group consumed 428.4 g of feed mixture less than the hens in the control group and the feed mixture consumption for the production of egg weight was also lower (407.29).
Keywords
laying hens; ZeoFeed; egg production; feed mixture consumption
Hrčak ID:
26798
URI
Publication date:
15.11.2007.
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