By Clarence B. Ammerman, David P. Baker, Austin J. Lewis
This functional ebook offers the most important info essential to formulate diets with applicable quantities of amino acids, minerals, and supplementations. the standards that impression how good animals receive those severe foodstuff and techniques for making a choice on bioavailability are reviewed during this complete textual content. furthermore, facts from either ruminants and nonruminants are incorporated in addition to confirmed estimates of bioavailability for specific feed stuffs and feed vitamins.
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Additional info for Bioavailability of nutrients for animals: amino acids, minerals, and vitamins
Henry, P. , C, B. Ammerman and R. D. Miles. 1986. Bioavailability of manganese sulfate and manganese monoxide in chicks as measured by tissue uptake of manganese from conventional dietary levels. Poult. Sci. 65:983. Littell, R. C, R. J. Freund and P. C. Spector. 1991. "SAS System for Linear Models," 3rd. , p. 329. SAS Institute, Cary, NC. Miles, R. , C. W. Comer and P. R. Henry. 1993. Relative phosphorus bioavailability of two feed-grade phosphate sources for chicks. Poult. Sci. l):182 [Abstract].
454 for sources 2, 3, and 4, respectively. 0065, which is sufficiently small to justify using the simpler variance formula, Eq. 7] of Finney (1978). 042 for source 4. It is noteworthy to compare the slope ratio RBV computed here with those computed by Fritz et al. (1974) using the parallel lines method. Using RBV and standard deviations from Fritz et al. 039 for source 4. Intervals from the preceeding analysis using slope ratio estimates are shorter for two of the three test sources. This is possibly because the slope ratio estimates utilize data from the zero level of iron, and the parallel lines estimates do not.
84 g of nitrogen was excreted for each kilogram of dry matter consumed. An alternative approach is to regress fecal nitrogen (or amino acid) loss on protein (or amino acid) intake (Carlson and Bayley, 1970). Both methods fail to account for the effect of dietary protein intake on endogenous protein secretions into the digestive tract. Souffrant et al. (1986) compared amino acid intake and portal blood uptake and found more amino acid in the portal blood flux than in the diet because of recycling of endogenous amino acids.
Bioavailability of nutrients for animals: amino acids, minerals, and vitamins by Clarence B. Ammerman, David P. Baker, Austin J. Lewis
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