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Maneio Reprodutivo em ovinos e caprinos 7. Inseminação artificial em ovinos e caprinos

Authors: Valentim, Ramiro; Rodrigues, Isilda; Correia, Teresa Montenegro; Sacoto, Sandra; Azevedo, Jorge; Gomes, Maria José Marques;

Maneio Reprodutivo em ovinos e caprinos 7. Inseminação artificial em ovinos e caprinos

Abstract

A inseminação artificial (IA) em pequenos ruminantes-ovlnos e caprinos - continua ainda, apesar de vários esforços, a não constituir uma prática corrente nas explorações portuguesas. A pequena dimensão dos rebanhos e cabradas, com tendência para diminuírem, principalmente no Norte do país, dificuldades na deposição do sémen no corpo do útero (l), na conservação do sémen (2), menores taxas de fertilidade aparente (relativamente à monta natural) (l), necessidade de mão-de-obra especializada, (3) maiores custos, o envelhecimento da população e a falta de interesse por parte dos mais jovens são os principais constrangimentos apontados à difusão da inseminação artificial, nestas espécies. Em Espanha, a inseminação artificial em ovinos e caprinos não surge como uma técnica de eleição para a reprodução em si, mas está fortemente ligada a programas de melhoramento das raças (3). Também em França, apesar do número elevado de inseminações que se realizam, esta prática está normalmente associada a programas de melhoramento das respetivas racãs (4). No entanto, em alguns países como por exemplo o Brasil e a Nova Zelândia, esta técnica atinge uma dimensão muito mais expressiva.

Keywords

Inseminação artificial em ovinos, Inseminação artificial em caprinos

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green