Published in Scientific Papers. Series D. Animal Science, Vol. LVIII
Written by Lucia Iuliana NISTOR (COTFAS), Andreea Cătălina NISTOR, Marius Giorgi USTUROI
Public perception about the nutritional qualities of table eggs obtaining from alternative systems compared to conventional one is based on the idea that eggs produced in alternative systems are superior in quality to those obtained in growth batteries. In the foreground but falls to assure the welfare of laying hens in battery cages adoption 'improved' , which provides ethological needs of laying hens during production . The purpose of this study is to analyze the impact of the welfare on the performance as body weight, egg production and laying intensity ,at Lohmann Brown laying hens during 50 weeks of operation. The determination of performance indicators was performed using specific methods weighing scales Weighmate regular Junior , records and intensity of egg production of laying computerized system Touch Viper Climate and Production. The research was conducted on two groups of hens exploited in classic system as improved battery and alternative system free range. Performance indicators were recorded and the data were statistically processed , establishing systems impact on body weight , egg production , and the intensity of laying. Compared to conventional systems where body weight of birds at the age of 20 weeks was 1545.571 ± 15 369 g, in alternative one the body weight was 1652.429 ± 29.663 g ;in terms of egg production was 1.17 % lower than the production standard for free range system and 0.03 % in group battery operated, about laying intensity was 97.14 % at week 34,in the free range group and 97.43 % at week 29 in the group operated batteries. Alernative systems has multiple benefit on the health of laying hens but not on their productivity , morphological and productive performance of the hybrid , both classical system and free range one is due to genetic stability and environmental factors.
[Read full article] [Citation]
eggs
