منابع مشابه
Comparative evaluation of mathematical functions to describe growth and efficiency of phosphorus utilization in growing pigs.
Success of pig production depends on maximizing return over feed costs and addressing potential nutrient pollution to the environment. Mathematical modeling has been used to describe many important aspects of inputs and outputs of pork production. This study was undertaken to compare 4 mathematical functions for the best fit in terms of describing specific data sets on pig growth and, in a sepa...
متن کاملassessment of the efficiency of s.p.g.c refineries using network dea
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Utilization of Iron by Scorbutic Guinea Pigs.
W E REPORTED EARLIER1 that scorbutic guinea pigs showed normocytic and normochromic anemia with normoblastic reaction of bone marrow, diminished plasma iron, decreased iron binding capacity of plasma, increased free erythrocyte protopofl)hyrin and a low sideroblast percentage with high hemosiderin content of bone marrow. These changes could not be attributed to inanition, intestinal hemorrhage,...
متن کاملEfficiency of utilization of dietary energy for milk production in lactating crossbred cattle (Bos Indicus)
The present study was conducted on efficiency of utilization of dietary energy for milk production in lactating crossbred cattle. 18 lactating crossbred cattle of early to mid-lactation, approximate body weight (375.39±23.43 kg), milk yield, parity and stage of lactation were divided into three groups of six animals each and were fed 0, 50 and 100% diammonium phosphate (DAP) in the mineral mixt...
متن کاملPartitioning of heat production in growing pigs as a tool to improve the determination of efficiency of energy utilization
In growing pigs, the feed cost accounts for more than 60% of total production costs. The determination of efficiency of energy utilization through calorimetry measurements is of importance to sustain suitable feeding practice. The objective of this paper is to describe a methodology to correct daily heat production (HP) obtained from measurements in respiration chamber for the difference in ene...
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ژورنال
عنوان ژورنال: Proceedings of the Nutrition Society
سال: 1955
ISSN: 0029-6651,1475-2719
DOI: 10.1079/pns19550006