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Descripción
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| In total, 160 Lohmann Brown hens, 23 wk of age, were used to study the influence of lysolecithin suplementation to the diet on productive performance and egg quality. Diets were based on corn, soybean meal, and sunflower meal and contained 2,750 kcal AMEn/kg, 16.5% CP, 0.72% digestible Lys, 3.90% Ca, and 0.31% digestible P. All diets were supplemented with 4% animal fat of poor quality (>15 mg peroxide/kg and < 8.3% linoleic acid) that was obtained from the processing (pressure and heating) of meat by-products from the dried ham and shoulder industry. Productive performance was recorded by replicate every 28 d and cumulatively (23 to 47 wk of age). Also, egg quality (Haugh units, yolk color, shell thickness, shell strength, percentage of dirty, broken, and shell less eggs, and percentage of albumen, yolk, and shell of the egg) were measured in 10 eggs per replicate. These eggs were chosen at random from eggs produced for the last 2 d of each 28-d period. Data were analyzed as a completely randomized design with 2 treatments and 8 replicates (a cage with 10 hens) per treatment. Treatment means were separated using the t-test. Cumulative egg production and egg weight were not affected by treatment (P > 0.05). Feed conversion ratio per dozen of eggs was better for the lysolecithin fed group than for the control fed group but the differences detected did not reach significance (P > 0.05). None of the egg quality traits studied was affected by lysolecithin supplementation. It is concluded that under the conditions of the current experiment, characterized by the high level of egg production of the hens (over 93% as an average for the whole experiment), the supplementation of the diet with 0.05% lysolecithin did not affect significantly productive performance or egg quality. | |
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Internacional
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Si |
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Nombre congreso
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Poultry Science Association 103rd Annual Meeting |
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Tipo de participación
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970 |
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Lugar del congreso
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Corpus Christi, Texas |
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Revisores
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Si |
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ISBN o ISSN
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0032-5791 |
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DOI
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Fecha inicio congreso
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14/07/2014 |
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Fecha fin congreso
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17/07/2014 |
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Desde la página
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141 |
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Hasta la página
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141 |
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Título de las actas
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Poultry Science Association 103rd Annual Meeting |