By National Research Council, Division on Earth and Life Studies, Board on Agriculture and Natural Resources, Committee on Nutrient Requirements of Swine

Since 1944, the nationwide examine Council has released 10 variants of the Nutrient necessities of Swine. This reference has guided nutritionists and different pros in academia and the swine and feed industries in constructing and enforcing dietary and feeding courses for swine. The swine has passed through massive alterations because the 10th version used to be released in 1998 and a few of the necessities and proposals set forth at the moment are not any longer proper or appropriate.

The 11th revised version of the Nutrient specifications of Swine builds at the earlier variants released through the nationwide examine Council. loads of new study has been released over the last 15 years and there's a great amount of recent info for lots of nutrition. as well as a radical and present assessment of the literature at the strength and nutrient standards of swine in all phases of existence, this quantity comprises information regarding feed materials from the biofuels and different new parts, standards for digestible phosphorus and concentrations of it in feed parts, a evaluate of the consequences of feed ingredients and feed processing, and methods to extend nutrient retention and therefore decrease fecal and urinary excretions which can give a contribution to environmental pollutants. The tables of feed component composition are considerably updated.

Nutrient specifications of Swine represents a accomplished evaluation of the latest info to be had on swine food and element composition that may enable effective, ecocnomic, and environmentally awake swine production.

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165-168 in Energy Metabolism of Farm Animals, EAAP No. 13, A. Suchurch and C. Wenk, eds. Zurich: Juris Druck Verlag. Just, A. 1982. The net energy value of balanced diets for growing pigs. Livestock Production Science 8:541-555. Kemp, B. 1989. Investigations on breeding boars to contribute to a functional feeding strategy. D. Dissertation, University of Wageningen, The Netherlands. Kielanowski, J. 1965. Energy cost of protein deposition in growing animals. P. 13 in Energy Metabolism, EAAP Publication 11.

Studies on the energy metabolism of the pregnant sow. 1. Uterus and mammary tissue development. British Journal of Nutrition 53:251-265. , J. Y. Dourmad, J. Le Dividich, and S. Dubois. 1989. Effect of ambient temperature and addition of straw or alfalfa in the diet on energy metabolism of pregnant sows. Livestock Production Science 21:309-324. , J. Y. Dourmad, and M. Etienne. 1990. Energy utilization in pregnant and lactating sows: Modeling of energy requirements. Journal of Animal Science 68:562-572.

2006). The decrease in MEI associated with ractopamine is a function of BW gain during the ractopamine supplementation period and the dietary concentration of ractopamine. Feeding ractopamine will increase body protein deposition and, therefore, reduce the amount of energy available for lipid deposition. The impact of ractopamine on the partitioning between body protein and lipid deposition will vary with dietary level and the duration of feeding ractopamine (see section in Chapter 8 on Impacts of Feeding Ractopamine and Immunization of Entire Males Against Gonadotropin Releasing Factor on Nutrient Partitioning).

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