University of Khartoum

Response of White Leghorn Hens to Dietary Levels of Sunflower Seed Meal

Response of White Leghorn Hens to Dietary Levels of Sunflower Seed Meal

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Title: Response of White Leghorn Hens to Dietary Levels of Sunflower Seed Meal
Author: Mahmoud,Amal Eltayeb
Abstract: This study was designed to investigate the effect of feeding different levels of sunflower seed meal (SSM) on laying hens performance and egg quality. For this purpose two experiments were carried out through 15 weeks period. Chemical composition of SSM revealed that it contains 30.62% crude protein (CP), 10.5% crude fibre (CF), 11.53% ether extract (EE) and 7.69% ash, the calculated metabolizable energy (ME) was 14.92%MJ/Kg. In the first experiment two hundred and fourty Single Comb White Leghorn hens (32 weeks old) were divided randomly into four groups (60 birds/treatment). They were raised in battery cages for 13 weeks. Parameters measured were rate of lay, feed Intake, feed conversion ratio, mortality, egg weight, shape index, shell thickness, egg yolk colour and shell colour. Four dietary treatments of graded levels of SSM (0, 10, 20 and 30 %) were used in both studies. The diets were approximately iso-caloric and iso-nitrogenous. After termination of the first experiment, the birds were transferred from the battery cages into 4 floor pens (a treatment in each pen), for another two weeks to test egg shell colour. Results showed that feeding different levels of SSM had no significant effect on the parameters measured in the first experiment except feed conversion ratio (FCR), egg yolk colour and shell colour. There was a significant effect (P<0.05) on FCR of birds fed 20 and 30% SSM. Whiteness value of egg shell laid by birds fed SSM was reduced (P<0.05). Feeding SSM showed similar effect on egg shell colour of birds raised in battery cages or floor pens. The results of this study suggest that 30% of SSM can be included in laying hens rations without adverse effects on performance or egg quality.
URI: http://khartoumspace.uofk.edu/handle/123456789/13782
Date: 2015-06-22


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