Eficiência de exames andrológicos para obtenção de bovinos reprodutores no Alentejo
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2019
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A eficiência reprodutiva é crucial para a sobrevivência económica da exploração, e o touro tem um papel importantíssimo nesta sobrevivência. O potencial deste tem que ser avaliado antes do mesmo ser introduzido na vacada. O exame andrológico avalia este potencial através do exame físico, anatómico e do espermograma.
É na região sul de Portugal mais propriamente na região do Alentejo onde existem as explorações com maior número de animais em regime extensivo. Este trabalho tem como objetivo realizar uma revisão bibliográfica de todo o sistema reprodutivo masculino, o seu correto funcionamento, de todo o procedimento do exame andrológico e as suas vantagens e do impacto que tem nas explorações.
Os exames andrológicos apresentados neste estudo foram todos realizados em explorações extensivas no Norte Alentejano, com a recolha de dados do exame andrologico de 53 touros, estes animais são de três diferentes raças nomeadamente Angus, Charolês e Limousine. Após o exame físico e a colheita de sémen através do eletroejaculador as características do ejaculado foram avaliadas, nomeadamente a motilidade individual e massal, a morfologia e a concentração.
The reproductive efficiency is crucial to the economic survival of the farm, and the bull plays a major role in this survival. The potential of the bull has to be assessed before he is introduced into the herd. The andrological examination evaluates this potential through physical, anatomical and sperm examination. It is in the southern region of Portugal more specifically in the Alentejo region where the farms have the largest number of animals in extensive regime. This paper aims to perform a literature review of the entire male reproductive system, its correct functioning, the entire procedure of the andrological examination and its advantages and the impact it has on holdings. The andrological examinations presented in this study were all performed on extensive farms in the North Alentejo, with the collection of EA data from 53 bulls, these animals are from three different breeds namely Angus, Charolais and Limousine. After physical examination and semen collection through the electroejaculation the characteristics of the ejaculate were evaluated, namely individual and mass motility, morphology and concentration.
The reproductive efficiency is crucial to the economic survival of the farm, and the bull plays a major role in this survival. The potential of the bull has to be assessed before he is introduced into the herd. The andrological examination evaluates this potential through physical, anatomical and sperm examination. It is in the southern region of Portugal more specifically in the Alentejo region where the farms have the largest number of animals in extensive regime. This paper aims to perform a literature review of the entire male reproductive system, its correct functioning, the entire procedure of the andrological examination and its advantages and the impact it has on holdings. The andrological examinations presented in this study were all performed on extensive farms in the North Alentejo, with the collection of EA data from 53 bulls, these animals are from three different breeds namely Angus, Charolais and Limousine. After physical examination and semen collection through the electroejaculation the characteristics of the ejaculate were evaluated, namely individual and mass motility, morphology and concentration.
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Orientação : Michelle Karen Brasil
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MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, VETERINÁRIA, MEDICINA VETERINÁRIA, BOVÍDEOS, REPRODUÇÃO ANIMAL, EXAMES ANDROLÓGICOS, ALENTEJO, VETERINARY MEDICINE, BOVIDS, ANIMAL BREEDING, BREEDING, SOUNDNESS EXAMINATION