This study determined the effects of three levels of supplemental yeast of Saccharomyces cerevisiae var. boulardii (SCB) on commercial male poult performance and ileum morphology. One hundred and sixty Nicholas poults were randomly assigned to 16 battery cages (10 poults per cage, 4 cages per diet) from 1 to 21 d of age (DOA). Poults were fed diets (26% CP) consisting of corn-soybean (CS, control), CS + .01% SCB, CS + .02% SCB, and CS + .06% SCB. At 21 DOA, 30 poults fed the CS and CS + .02% SCB diets (from 1 to 21 DOA) were randomly selected within each diet, placed in 1 of 6 cages (5 poults per cage, 3 cages per diet), and fed their respective diet to 35 DOA. Body weights and feed consumptions (FC) were measured at 21 and 35 DOA and morphological comparisons of ileal tissues were conducted at 35 DOA. Increased BW (P < .004) at 7, 14, and 21 DOA were observed for poults fed diets containing SCB at .01, .02, and .06% of the diet. No dietary differences (P > .05) were observed in FC or feed:gain ratios from 1 to 21 DOA. Increased (P < .03) BW were maintained from 21 to 35 DOA for poults fed .02% SCB, whereas no dietary differences (P > .05) in FC or feed:gain were observed. Histological examination of ileal sections from poults (35 DOA) fed the CS and CS + .02% SCB diets revealed a decrease (P < .04) in the number of goblet cells per millimeter of villus height and a decreased (P < .02) crypt depth in poults receiving .02% SCB. No dietary differences (P > .05) were observed for either villus height or width.
Soluble proteins from surimi wash water (SWW) precipitated using a chitosan-alginate (Chi-Alg) complex and recovered by centrifugation were freeze-dried. Analysis showed that SWW proteins (SWWP) had a crude protein content of 73.1% and a high concentration of essential amino acids, for example, 3% histidine, 9.4% lysine, 3.7% methionine, and 5.1% phenylalanine. In a rat-feeding trial, SWWP as a single protein source showed higher (P < 0.05) modified protein efficiency ratio and net protein ratio than the casein control. Blood chemistry analysis revealed no deleterious effect from the full protein substitution or the chitosan in SWWP. Therefore, this preliminary study revealed that proteins recovered from SWW using the Chi-Alg complex could be used in feed formulations. They could be used for food production in countries where regulatory agencies allow the use of chitosan in the production of food ingredients.
Medium White Wrolstad breeder toms were fed either 13.9% crude protein corn-soy, 13.75% triticale-soy, or 8.5% triticale diets from 28 to 45 weeks of age. Birds were then processed and physical and sensory evaluations of cooked breast meat were conducted. Tenderness shear value of cooked breast meat from turkeys fed triticale was significantly improved (P<.05) when compared with meat from birds fed either corn-soy or triticale-soy diets. Results of this study indicate that cooked meat tenderness of aged breeder toms can be influenced by diet. (
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