Analyses of Genetic Diversity in the Endangered "Berrenda" Spanish Cattle Breeds Using Pedigree Data
- PMID: 35158573
- PMCID: PMC8833649
- DOI: 10.3390/ani12030249
Analyses of Genetic Diversity in the Endangered "Berrenda" Spanish Cattle Breeds Using Pedigree Data
Abstract
Pedigree analyses of two endangered cattle breeds were performed in order to study the structure and the genetic variability in their populations. Pedigree data were analyzed from 12,057 individuals belonging to the "Berrenda en Negro" cattle breed (BN) and 20,389 individuals belonging to the "Berrenda en Colorado" cattle breed (BC) that were born between 1983 and 2020. BN and BC reference populations (RP) were set up by 2300 and 3988 animals, respectively. The generation interval in BN and BC reference populations was equal to 6.50 and 6.92 years, respectively. The pedigree completeness level was 82.76% in BN and 79.57% in BC. The inbreeding rates were 4.5% in BN and 3.4% in BC, respectively. The relationship among animals when they were born in different herds was 1.8% in BN and 5% in BC; these values increased to 8.5% and 7.7%, respectively when comparing animals that were born in the same herd. The effective number of founding herds was 23.9 in BN and 60.9 in BC. Number of ancestors needed to explain 50% of genes pool in the whole population was 50 and 101, in BN and in BC, respectively. The effective population size based on co-ancestries was 92.28 in BN and 169.92 in BC. The genetic variability has been maintained in both populations over time and the results of this study suggest that measures to promote the conservation of the genetic variability in these two breeds would go through for the exchange of breeding animals among farms and for monitoring the genetic contributions before implementing any selective action.
Keywords: conservation; genealogical data; genetic contribution; inbreeding; native resources.
Conflict of interest statement
The authors declare no conflict of interest.
Figures










References
-
- BOE Real Decreto 45/2019, de 8 de Febrero, por el Que se Establecen las Normas Zootécnicas Aplicables a los Animales Reproductores de Raza Pura, Porcinos Reproductores Híbridos y su Material Reproductivo, se Actualiza el Programa Nacional de Conservación, Mejora y Fomento de las Razas Ganaderas y se Modifican los Reales Decretos 558/2001, de 25 de Mayo; 1316/1992, de 30 de Octubre; 1438/1992, de 27 de Noviembre; y 1625/2011, de 14 de Noviembre. 2019. [(accessed on 20 November 2021)]. Available online: https://www.boe.es/eli/es/rd/2019/02/08/45/dof/spa/pdf.
-
- BOE Orden de 30 de Julio de 1979 por la Que se Establece el Catálogo Oficial de Razas de Ganado de España. 1979. [(accessed on 30 December 2021)]. Available online: https://www.boe.es/boe/dias/1979/08/09/pdfs/A18725-18726.pdf.
-
- Spanish Breed Information System of the Ministry of Agriculture, Fisheries and Food (ARCA, by Its Initials in Spanish) 2021. [(accessed on 20 November 2021)]. Available online: https://www.mapa.gob.es/es/ganaderia/temas/zootecnia/razas-ganaderas/raz....
-
- Alderson L. The categorisation of types and breeds of cattle in Europe. Arch. Zootec. 1992;41:4.
-
- Rodero E., González A., Luque A. Las razas bovinas andaluzas de protección especial: Berrenda en Colorado, Berrenda en Negro, Cárdena Andaluza, Negra Andaluza de las Campiñas, Pajuna y Marismeña. Patrim. Ganad. Andaluz. 2007;2:53–120.
Grants and funding
LinkOut - more resources
Full Text Sources
Research Materials