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The identification of equids, and of donkeys in particular, is a hot topic of ... 65 donkeys registered in the

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Dipartimento di Scienze Animali, Vegetali e dell’Ambiente

dell’Università del Molise

10° Convegno

Nuove acquisizioni in materia di Ippologia

New findings in equine practice

Druento (Torino)

31 ottobre/1 Novembre 2008

Electronic identification of the donkey: a field experience by means of two types of transponders and three application techniques

Walter Pinna, Giuseppa Nieddu, Maurizio Picciau, Giuseppe Garau, Emanuela Pira


Introduction (1/6)

  • The identification of equids, and of donkeys in particular, is a hot topic of the last times, due to 2 main reasons:
  • 1) within the E. U.:
  • “ is (is going to) operative since the 27° of June, and will be mandatory within all the Countries Members since the 1° of July 2009, the Regulation (CE) n. 504/2008, 6 June 2008, dealing with directive 90/ 426/ CEE and 90/427/CEE of the Counsil about the identification methods in Equids, involving the identification of all equids born or imported in the Europea Comunity;
  • The identification system of equids in agreement with the new Regulation deals with the identification document (passport) unique and valid for all the life of the animal; the passpost is linked to the animal by a microchip, whose code, unique in the whole world (UELN: Universal Equine Life Number ),is recorded in BDE.

Introduction (2/4)

  • 2) within the Autonomous Region of Sardinia:
  • with approval of European Commission by Decision C (2007) 5949 of 28° of November 2007 and successive changes and integration it was issued a Program for the Rural Development (PSR), dealing with the financial supply of 7.000.000,00 € for the recovery and conservation of the biodiversity of some breeds under the menace of abandon;
  • within the above mentioned PSR Sarda breed donkey are involved;
  • Farmers who apply to the plan must meet the requirments for a 5 years period since the day after the deadline of the call, in the first moment identified with the 15° of May 2008, and then shifted to the 30° of June 2008.

Aim of the trial

Evaluate different electronic identifiers (transponder) and alternative techniques of individual identification of donkeys in comparison to the common technique in use at present


Materials and methods (1/7)

  • 65 donkeys registered in the “Anagraphical Register of Sarda breed donkey” were elettronically identified by:
  • Farm A: 55 heads (24 transponder Animal Coder and 31 Tiris)
  • Farm B: 10 heads (4 transponder Animal Coder; 6 Tiris)

Materials and methods (2/7)

RFID Handy reader

for Animal Coder


Commercial size of Animal Coder transponders

materials and methods 3 7
Materials and methods (3/7)

Technical features of


RFID Readers

Fixed reader

Handy reader

materials and methods 4 7
Materials and methods (4/7)
  • EIC Readability: R (%) = Read transponders . 100
  • Identified donkeys at reading

Materials and methods (5/7)

Transponder’s application

(Retroauricolar, intramuscular and intraperitoneal site)


Materials and methods (6/7)

xRay examen of

transponder’s position

(in the retroauricolar and intramuscular site)


Materials and methods (7/7)

Table n. 1 – Summary of the transponders type, site of injection and technique of application deployed in the trial


Results 1/6

Post-injection: T= 11d

Post-injection: T= 0

Injection: T= 0

Recovery of the wound in the point of injection


Results 2/6

EIC Static reading of Transponder by Animal Coder reader

EIC Static reading of Transponder by Gesimpex reader


Results 3/6

Table n. 1– Static Readability of EIC of the transponder in the donkey


Results 4/6

Dynamicreadingwith a fixed antenna in a corridorto the ranged area


Results 5/6

Table n. 2– Dynamic readability of EIC of the transponder in the donkey


Results 6/6 (xRay check)

Fix position of transponder in the retrauricolar site of injection

Variable position of transponder in the intramuscular site of injection



  • The application of the transponder in the retroauricolar region, as described in order to meet the needs of anagraphical controls in Sarda breed donkeys, resulted in a very easy to use method under usual farm conditions of Sardinia;
  • Tiris transpondershowed in farm condition a higher practical efficacy of the electronic identification system in the donkey thanks to the dynamic readability of the electronic code;
  • The localization of the injectable transponders in the retroauricolar region, shows to be more suitable in comparison to the intraperitoneal and in the middle (?) 3° of the neck injection, not only for individual identification but also according to the needs of recovery of the transponder in the slaugthehouse of animal elettronically identified.