Studies on factors to increase mold inhibitor effectiveness in livestock rations, 2; effects of the usage of a mold inhibitor in the ration on the nutritional status and performance of chicks.
1988
Nahm K.H. | Nahm K.S.
The effect of mold inhibitor was determined in the commercial rations which had two different protein levels (18 % and 12 %) and two different particle sizes (80 % of the particles in the ration less than 1.19mm and 40 % of the particles in the ration less than 1.19mm). After 40 days storage of the rations treated and not treated with the mold inhibitor the nutritional change of the experimental diets with 18 % and 12 % protein levels, the growth performance of chicks, and the weight of internal organs fed the 18 % protein diet were observed as the criteria of this research. The fat level and carotene content in the two diets with 18 % and 12 % protein level each were significantly (P<0.05) decreased when the diets were not treated by the mold inhibitor. Even if mold inhibitor was mixed in the diet, the fat content in the diet which had 40 % of the particles in the ration less than 1.19mm tended to be decreased, especially, in the diet with a 12 % protein level. The carotene content in the diet treated with mold inhibitor which had 40 % of the particles in the ration less than 1.19mm also tended to be decreased in both diets (18 % protein and 12 % protein). Feed types x particle size interaction was significant for the fat content (P<0.05) and for the carotene content (P<0.05). The amount of crude protein and ADF was not significantly (P>0.05) changed after 40 days storage. There was a significant decrease (P<0.05) in total body weight gain and total feed intake observed in chicks fed the untreated diet with 40 % of the particles in the ration less than 1.19mm. Feed conversion was significantly (P<0.05) depressed in the chicks fed the untreated diet of both particle sizes. Particle size x types of feed interaction in feed conversion was significant (P<0.05). Relative sizes of the liver, pancreas and spleen were not affected significantly (P>0.05) by the treatments.
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