Criteria to assess the degree of endangerment of livestock breeds in Europe

G.C. Gandini, L. Ollivier, B. Danell, O. Distl, A. Georgoudis, E. Groeneveld, E. Martyniuk, J.A.M. van Arendonk, J.A. Woolliams

Research output: Contribution to journalArticleAcademicpeer-review

54 Citations (Scopus)

Abstract

The degree to which a breed is exposed to becoming extinct, i.e. its degree of endangerment (DE), is an essential information to orient conservation policies. Assessing DE properly is a difficult task, as numerous factors are involved. Several methods are currently used in Europe and the paper first discusses the development of some objective criteria to promote the creation of a uniform system. Both demographic and genetic aspects of population decline are considered. It is proposed to estimate the number of years needed to reach a critical population size, which is also a measure of time available to evaluate options and undertake action before extinction. Thresholds of endangerment for both the demographic and genetic aspects are discussed. In addition, the population growth rate of 110 European cattle breeds is analysed. Growth rate is normally distributed with a mean of 1.00 (S.D. 0.09, range 0.77-1.27). Population size at the beginning of the analysed period and country of breeding affect growth rate significantly
The degree to which a breed is exposed to becoming extinct, i.e. its degree of endangerment (DE), is an essential information to orient conservation policies. Assessing DE properly is a difficult task, as numerous factors are involved. Several methods are currently used in Europe and the paper first discusses the development of some objective criteria to promote the creation of a uniform system. Both demographic and genetic aspects of population decline are considered. It is proposed to estimate the number of years needed to reach a critical population size, which is also a measure of time available to evaluate options and undertake action before extinction. Thresholds of endangerment for both the demographic and genetic aspects are discussed. In addition, the population growth rate of 110 European cattle breeds is analysed. Growth rate is normally distributed with a mean of 1.00 (S.D. 0.09, range 0.77-1.27). Population size at the beginning of the analysed period and country of breeding affect growth rate significantly. (C) 2004 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)173-182
JournalLivestock Production Science
Volume91
Issue number1-2
DOIs
Publication statusPublished - 2004

Keywords

  • animal breeding
  • cattle
  • cattle breeds
  • endangered breeds
  • extinction
  • conservation
  • animal genetic resources
  • genetic variation
  • genetic resources
  • breeding programmes
  • breeding value
  • demography
  • population growth
  • europe
  • overlapping generations
  • predicting rates
  • populations
  • selection
  • diversity

Fingerprint

Dive into the research topics of 'Criteria to assess the degree of endangerment of livestock breeds in Europe'. Together they form a unique fingerprint.

Cite this