نتایج جستجو برای: animal performance
تعداد نتایج: 1246444 فیلتر نتایج به سال:
Interest in selection for improved feed efficiency is increasing, but before any steps are taken toward selecting for feed efficiency, correlations with other economically important traits must first be quantified. The objective of this study was to quantify the genetic associations between feed efficiency measured during performance testing and linear type traits, BW, live animal value, and ca...
Genetic evaluation systems like PIGBLUP use information on the performance of pigs along with environmental and management factors to derive Estimated Breeding Values (EBVs) for each animal. In contrast to the observed performance of an animal, EBVs are not expressed in absolute values but are expressed as a difference from a base value. This base often consists of the oldest animals included i...
brucellosis has remained a great problem of health in most of countries, which have failed in control of zoonosis infections. this disease is caused by species of brucella and usually is transferred from animals to humans. the purpose of this study was to investigate the seroprevalence of brucellosis among animal farmers of yazd province. in this descriptive study, 933 animal farmers were inves...
statement of problem: the guided bone regeneration (gbr) technique does not always produce consistent results. bone filling within the space provided by the membrane can be incomplete. purpose: the aim of this study was to evaluate the effect of a collagen membrane (bio-gide) in combination with or without deproteinezed bovine bone mineral (bio-oss) on the healing of calvarial defects in rabbit...
This paper reports a pilot study of how to utilize simulated animal companions to encourage students to pay more effort in their study in the classroom environment. A class of students is divided into several teams. Every student keeps her own individual animal companion, called My-Pet, which keeps a simple performance record of its master for self-reflection. Also, every team has a team animal...
Neonate ruminants possess little cell-wall and starch degrading enzyme activity. Importantly, early establishment of fibrolytic, amylolytic, and proteolytic capacities is influential for the early expansion of the reticulorumen epithelia. Such an early development in reticulorumen fermentation will enable a timely hepatic adaptation to volatile fatty acids assimilation. The early nutrient relea...
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