04180nam a22005775i 4500 978-94-017-9026-0 DE-He213 20210617215415.0 cr nn 008mamaa 140527s2014 ne | s |||| 0|eng d 9789401790260 978-94-017-9026-0 10.1007/978-94-017-9026-0 doi QL1-991 PSV bicssc SCI070000 bisacsh PSV thema 590 23 Lesnoff, Matthieu. author. aut http://id.loc.gov/vocabulary/relators/aut Calculation of Demographic Parameters in Tropical Livestock Herds [electronic resource] : A discrete time approach with LASER animal-based monitoring data / by Matthieu Lesnoff, Renaud Lancelot, Charles-Henri Moulin, Samir Messad, Xavier Juanès, Christian Sahut. 1st ed. 2014. Dordrecht : Springer Netherlands : Imprint: Springer, 2014. X, 99 p. 33 illus., 23 illus. in color. online resource. text txt rdacontent computer c rdamedia online resource cr rdacarrier text file PDF rda Ruminant livestock (cattle, small ruminants, and camels) have a determinant economic role in many tropical developing countries. In traditional low-input farming systems, demographic parameters (e.g. reproduction or mortality rates) are important indicators for estimating and modelling herd dynamics and production, and impacts of farming practices or environmental risks (droughts, epizootics, etc.). Although such parameters have been extensively described in the literature on tropical livestock, many descriptions only rely on empirical presentations of formulas without clear methodological justifications. This book fills this gap, presenting the main concepts used to define and compute demographic parameters for tropical livestock, such as probabilities and hazard rates of occurrences and competing risks. It is based on the LASER software, a relational database management system specifically designed for animal-based monitoring surveys. It also provides an introduction on R, the free statistical software (http://www.r-project.org) used for the computations. It is intended for researchers, engineers, technicians, or students dealing with demographic parameters of tropical ruminant livestock in various fields such as animal science, epidemiology, or economy. It will also be valuable for readers wishing to enhance their understanding of definitions and formulas found in the literature, and it will guide them in their applications. Zoology. Animal systematics. Animal taxonomy. Environmental monitoring. Animal ecology. Zoology. https://scigraph.springernature.com/ontologies/product-market-codes/L25007 Animal Systematics/Taxonomy/Biogeography. https://scigraph.springernature.com/ontologies/product-market-codes/L2504X Monitoring/Environmental Analysis. https://scigraph.springernature.com/ontologies/product-market-codes/U1400X Animal Ecology. https://scigraph.springernature.com/ontologies/product-market-codes/L19015 Lancelot, Renaud. author. aut http://id.loc.gov/vocabulary/relators/aut Moulin, Charles-Henri. author. aut http://id.loc.gov/vocabulary/relators/aut Messad, Samir. author. aut http://id.loc.gov/vocabulary/relators/aut Juanès, Xavier. author. aut http://id.loc.gov/vocabulary/relators/aut Sahut, Christian. author. aut http://id.loc.gov/vocabulary/relators/aut SpringerLink (Online service) Springer Nature eBook Printed edition: 9789401790277 Printed edition: 9789401790253 Printed edition: 9789402403527 https://doi.org/10.1007/978-94-017-9026-0 ZDB-2-SBL ZDB-2-SXB Biomedical and Life Sciences (SpringerNature-11642) Biomedical and Life Sciences (R0) (SpringerNature-43708)