E. Pieragostini 1 , A.M. Cito 2 , R. Rizzi 3 , A. Caroli 4

E. PieragostiniE. Pieragostini11, A.M. Cito, A.M. Cito22, R. Rizzi, R. Rizzi33, A. Caroli, A. Caroli44

11 ProGeSa, Università degli Studi di BariProGeSa, Università degli Studi di Bari22 Medico Veterinario, Libero Professionista, Taranto Medico Veterinario, Libero Professionista, Taranto

33 VSA, Università degli Studi di Milano VSA, Università degli Studi di Milano4 4 DSBB, Università degli Studi di Brescia DSBB, Università degli Studi di Brescia

INBREEDING ANALYSIS INBREEDING ANALYSIS IN “ASINO DI MARTINA FRANCA”IN “ASINO DI MARTINA FRANCA”

10° Convegno SIDI - 10° Convegno SIDI - Nuove acquisizioni in materia di Ippologia - Druento, 31 ottobre 2008Nuove acquisizioni in materia di Ippologia - Druento, 31 ottobre 2008

Asino di Martina Franca: Asino di Martina Franca: Apulian native donkey breed


Origin: from crosses of local donkeys (Martina Franca area) with Spanish animals (XVI century, Spanish domination)

Peculiarity: very tall and rustic animal, used in the past for mule production


ASINO di MARTINA FRANCAASINO di MARTINA FRANCA

• From 1926 the Istituto Regionale di Incremento Ippico has been responsible of its breeding, defense, and valorization.

• After second world war: beginning of the numerical decline of the population.

• 1985: ecological park for the in vivo conservation of the breed (in “Russoli” farm, in agro Crispiano).

• 1990: trend towards growing number of the population


Important datesImportant dates forfor ASINO di MARTINA ASINO di MARTINA FRANCAFRANCA

In 2008: 450 animals registered

• Check and analysis of genealogic data• Inbreeding estimation• Additive kinship estimation

Mating planning Mating planning

AIM OF THE WORKAIM OF THE WORK


MATERIAL E METHODSMATERIAL E METHODS

• Analysis of the genealogic data (1947 – 2006 period) → new corrected data-set (1660 animals)

• Inbreeding estimation with MINBREED program1

• All possible mating evaluation and estimation of additive relationship coefficients (for each combination)

1Gandini G., De Filippi, P., 1998. Minbreed – Software package for the genetic management of small breeds. Proc. 6th World Congr. Gen. Appl. Livest. Prod., Armidale, Australia, 27, 451.


INBREEDING INBREEDING 10° Convegno SIDI - 10° Convegno SIDI - Nuove acquisizioni in materia di Ippologia - Druento, 31 ottobre 2008Nuove acquisizioni in materia di Ippologia - Druento, 31 ottobre 2008

Pedigree depth:

• 182 animals (11% of the population) with genealogical information of one generation

• 86 (5%): 2 generations• 1392 (84%): at least 3 generations

INBREEDING INBREEDING (WHOLE POPULATION)(WHOLE POPULATION)

MEAN = 0.039S.D. = 0.056MIN = 0.00

MAX = 0.359


ADDITIVE RELATIONSHIP ADDITIVE RELATIONSHIP (ALL MATING COMBINATIONS)(ALL MATING COMBINATIONS)


MEAN = 0.074S.D. = 0.096MIN = 0.00

MAX = 1.359

INBREEDING INBREEDING (n = 1660)(n = 1660)

ADDITIVE RELATIONSHIP ADDITIVE RELATIONSHIP (n = 2755600)(n = 2755600)


MEAN = 0.144S.D. = 0.123MIN = 0.00

MAX = 0.819

ADDITIVE RELATIONSHIPADDITIVE RELATIONSHIP (POSSIBLE MATING COMBINATIONS)(POSSIBLE MATING COMBINATIONS)


A data-set was prepared for each sire reporting the relationship coefficient with all possible mares, and given to breeders

An example …. Legenda:CP = relationship coefficient between each sire and

each possible mare


PROGENY INBREEDINGPROGENY INBREEDING


Legenda: CP = 0 Mating recommended: expected inbreeding in

the progeny is nullCP > 0,12 Mating not recommended


PROGENY INBREEDINGPROGENY INBREEDING


Project “Technical assistance for Asino Martina Franca breed valorization”

Regione Puglia (Assessorato alle Risorse Agroalimentari Ispettorato Provinciale Agricoltura, Foggia – IRIP, Foggia) Department ProGeSa (Università degli Studi di Bari)


ACKNOWLEDGMENTSACKNOWLEDGMENTS

The Authors wish to thank:

Dr F. Nico (Regione Puglia)

Dr A.Ursitti (Ufficio regionale dell’Istituto di Incremento Ippico)

Mr R. Illiceto (Registro Anagrafico dell’Asino di Martina Franca e del Cavallo delle Murge, Ufficio regionale dell’Istituto di Incremento Ippico)


ACKNOWLEDGMENTSACKNOWLEDGMENTS

Documents

E. Pieragostini 1 , A.M. Cito 2 , R. Rizzi 3 , A. Caroli 4