Nitrous oxide (N2O) is a potent greenhouse gas and the dominant anthropogenic stratospheric ozone-depleting emission. The tropospheric concentration of N2O continues to increase, with animal production systems constituting the largest anthropogenic source. Stable isotopes of nitrogen (N) provide tools for constraining emission sources and, following the temporal dynamics of N2O, providing addit...

M. Zampoli Troncarelli, H. Mello Brandão, J. Carine Gern, A. Sá Guimarães, H. Langoni Universidade Estadual Paulista UNESP (University of Sao Paulo State), Faculdade de Medicina Veterinária e Zootecnia (Faculty of Veterinary Medicine and Animal Science), Departamento de Higiene Veterinária e Saúde Pública (Department of Veterinary Hygiene and Public Health), Distrito de Rubião Jr., s/n, 18618-9...

Many of those who now look to the Journal of Animal Science as a major source of new information, and as an important avenue of publication, were not yet born when it first appeared half a century ago. For them, and for those of us who are older, it may be useful to refresh our memories as to how the Journal came to be, and of the circumstances under which it was conceived and initiated. The Am...

Introduction Domestication of food producing animals has led to the desire by humans to control reproduction so as to enhance production of the products (e.g., meat) from these animals. Domestication of cattle is estimated to have started about 10,000 years ago (Bradley et al., 1998). Controlled reproduction by regulating mating patterns, through use of natural breeding, has long been practiced...

Concerns about farm animal welfare vary among individuals and societies. As people increasingly consider the values underlying current farm animal production methods, farm animal welfare policy debates have escalated. Recent food animal protection policies enacted in the European Union have fueled highly contentious discussions about the need for similar legislative activity in the United State...

Animals are commonplace in genomic research, yet to date there has been little direct interrogation of the position, role and construction of animals in the otherwise flourishing social science of genomics. Following a brief discussion of this omission, I go on to suggest that there is much of interest for the social sciences and the humanities in this field of science. I show that animal genom...

Preclinical (animal) testing and human of drugs vaccines are rarely considered by social scientists side side. Where this is done, it typically for theoretically exploring the ethics two situations to compare relative treatment. In contrast, we empirically explore how clinical trial participants understand role animal test subjects in vaccine development. Furthermore, science research has only ...

Production of safe and healthy high quality food for human population, preservation of stable rural social economic infrastructure and sustainable use of agricultural land and animal resources are important goals of European livestock sector. Research and innovation in the livestock sector will play an important role in development of more effi cient and sustainable strategies for supply of hea...