Efeito da suplementação intramuscular de vitaminas e minerais sobre a criopreservação do sêmen de cachaços
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Data
2010-02-17
Autores
González Cadavid, Verónica [UNESP]
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Universidade Estadual Paulista (Unesp)
Resumo
O experimento foi realizado em uma suinocultura de produção comercial da linhagem Topigs, utilizando dez machos reprodutores, com o objetivo de avaliar o efeito das suplementações intramusculares com vitaminas e minerais (Selen- Fos® e Zimag®) na qualidade espermática do sêmen in natura e após a congelação. Foram realizadas duas análises estatísticas: Multivariada para descrição das alterações observadas; ANOVA utilizando o modelo inteiramente casualizado. As variáveis seminais analisadas foram: volume, concentração, turbilhonamento, motilidade, vigor, porcentagem de espermatozóides vivos, mortos, e vivos sem acrossomo, morfologia e integridade da membrana (Teste hiposmótico). O experimento foi dividido em duas fases. Na primeira fase o sêmen in natura dos 10 cachaços foi avaliado e posteriormente congelado. Uma vez terminada esta fase iniciou-se a segunda fase onde sete animais receberam as suplementações com vitaminas e minerais via intravenosa e três permaneceram sem recebê-las. Após um período de 60 dias contados a partir do dia da administração das vitaminas e dos minerais se iniciaram novamente as coletas de sêmen e as avaliações tanto in natura como o descongelado. O sêmen in natura apresentou melhor qualidade espermática quando comparado com o sêmen descongelado e o sêmen dos cachaços que receberam as suplementações tiveram melhora (p 0,05) significativa na qualidade do sêmen e na criotolerância
The experiment was conducted in a commercial swine production using ten boars of Topigs® line. The aim was to evaluate the effect of intramuscular supplementation of vitamins and minerals (Selen-Fos® and Zimag®) on fresh semen quality and after freezing. Two statistical analysis were used: multivariate description of the observed changes and ANOVA with randomized design. Analyzed seminal variables were: concentration, turbilhamento, motility, vigor, percentage of live sperm, dead and alive without acrosome, morphology and membrane integrity (HO). The experiment was divided into two phases. In the first phase, the fresh semen of 10 boars was evaluated and subsequently frozen. About three days after the freezing process, the semen was thawed and the quality was assessed. After this in the second phase, seven boars received intramuscular supplementation of minerals and vitamins and three boars received without the supplementation for control. About 60 days later, all these boars were submitted to semen collection and the semen was again evaluated both, fresh and thawed. The fresh semen showed better quality than the frozenthawed in the two phases of the experiment (p< 0,05). The semen of boars that received the supplementation had a significant improvement on semen quality and freezing resistant (p< 0,05)
The experiment was conducted in a commercial swine production using ten boars of Topigs® line. The aim was to evaluate the effect of intramuscular supplementation of vitamins and minerals (Selen-Fos® and Zimag®) on fresh semen quality and after freezing. Two statistical analysis were used: multivariate description of the observed changes and ANOVA with randomized design. Analyzed seminal variables were: concentration, turbilhamento, motility, vigor, percentage of live sperm, dead and alive without acrosome, morphology and membrane integrity (HO). The experiment was divided into two phases. In the first phase, the fresh semen of 10 boars was evaluated and subsequently frozen. About three days after the freezing process, the semen was thawed and the quality was assessed. After this in the second phase, seven boars received intramuscular supplementation of minerals and vitamins and three boars received without the supplementation for control. About 60 days later, all these boars were submitted to semen collection and the semen was again evaluated both, fresh and thawed. The fresh semen showed better quality than the frozenthawed in the two phases of the experiment (p< 0,05). The semen of boars that received the supplementation had a significant improvement on semen quality and freezing resistant (p< 0,05)
Descrição
Palavras-chave
Suino - Espermatozóides, Minerais na nutrição animal, Vitaminas na nutrição animal, Criotolerância, Spermatozoa, Cryopreservation, Minerals, Boars, Vitamins
Como citar
GONZÁLEZ CADAVID, Verónica. Efeito da suplementação intramuscular de vitaminas e minerais sobre a criopreservação do sêmen de cachaços. 2010. xv, 65 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, 2010.