Morales BE, Alvarado LJ, Soto CD, Ávila GE, Wagner N

Language: English/Spanish
References: 23
Page: 29-33
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ABSTRACT

The aim of this experiment was to evaluate the effect of supplementing levels of DL-methionine on diets to laying hens on egg production based in high and low tannin sorghum, soybean and meat meal. Four hundred and twenty layers of Dekalb Delta strain from 26 to 37 weeks of age were used in a completely randomized design and divided in seven treatments with four replicates of fifteen birds each. Low tannin sorghum (0.03%) basal diet was supplemented with three levels of DL-methionine (0.00, 0.06 and 0.12%) and the high tannin sorghum (1.05%) basal diet with levels of DL-methionine 0.00, 0.06, 0.12 and 0.18%. Results obtained were different (P‹0.01) for egg production (44.7, 70.7, 78.0, 36.8, 57.1, 64.4 and 74.7, respectively), feed daily intake (63.6, 79.6, 85.7, 61.0, 79.9, 84.3 and 90.7 g), egg weight (50.3, 53.9, 55.4, 50.9, 53.5, 55.2 and 55.2 g), feed conversion (2.83, 2.09, 1.98, 3.26, 2.61, 2.37 and 2.20) and egg mass (22.5, 38.1, 43.2 18.7, 30.6, 35.6 and 41.3 g). In both high and low tannin sorghum diets, DL-methionine supplementation affected parameters studied; the magnitude of the response was greater with low tannin sorghum diets. The addition of extra methionine in high tannin sorghum, in order to have equivalent levels of digestible sulfur amino acids, allowed similar results in performance.

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