The modern animal biotechnologies, such as animal cloning, transgenesis, sex determina‐ tion, stem cells, designing new livestock, must be performed on animal gametes includ‐ ing sperm and oocytes, and embryos based on embryology theory. Currently, some key biotechnologies in embryology have become the most powerful tool for animal scientists and breeders to improve genetic construction of anim...

Estimates of canine and feline euthanasia at U.S. animal shelters--largely based on voluntary surveys with low response rates--make it difficult to estimate the population from which the euthanized animals derive. Estimates of euthanasia rates (animals euthanized per unit of population) have varied widely and been available only sporadically. This study used requirements of Michigan state law (...

This paper will discuss the present level of research and development on human-wildlife conflicts, there are bad interactions between humans wild animals that for both resources human population as well ecosystems wildlife. Animal detection has an impact food security animal welfare because it arises from conflict wildlife over natural resources. As grown many communities' land use patterns hav...

Population density and home range are the two major ecological characteristics pertaining to the ecosystem-level energy use by the species. Home range usually grows more rapidly with body size than does individual metabolic rate. Neither this phenomenon nor the observed absence of isometry between inverse home range and population density (the latter often scaling as the reciprocal of metabolic...

Populations of genetically identical bacteria encompass heterogeneous physiological states. The small fraction that are dormant can help the population survive exposure to antibiotics and other stresses, potentially contributing recurring infection cycles in animal or plant hosts.

introduction: fasting during the holy month of ramadan is an obligation for all adult, healthy muslims. as several studies have indicated, both fasting and energy restriction can alter thyroid hormone metabolism and affect the clinical features and well-being of hypothyroid patients. hypothyroidism is more prevalent among women and the elderly. its prevalence has been reported to be 4-8% of the...