Análise espermática de perdizes (Rhynchotus rufescens) criadas em cativeiro e suplementadas com selênio
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Data
2011-12-01
Autores
Góes, Paola Almeida de Araújo
Cavalcante, Ana Karina da Silva
Tavian, Aline Frasseto [UNESP]
Felipe, Leticia
Santos, Erika Coelho [UNESP]
Nichi, Marcílio
de Queiroz, Sandra Aidar [UNESP]
Barnabe, Renato Campanarut
Barnabe, Valquíria Hyppolito
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Resumo
Due to the commercial importance of the red-winged tinamou (Rhynchotus rufescens), for the past few years, the employment of reproductive biotechnologies has been attempted. Thirty animals were randomly assigned into two groups: control group (no selenium) and treatment group (supplemented with 0,2 a 0,8 mg selenium/ 1000 kg ration). Animals were allocated at the FCAV - UNESP/Jaboticabal (2007-2008). Semen collections were performed by digital manipulation and divided in pools of at least 150 μL. After the immediate evaluation of motility, vigour, concentration and morphology, an aliquot of 20 μL was diluted in 300 μL of physiologic solution in order to test acrosome and membrane integrities, which were performed by counting 200 cells for each test. Cells were evaluated as follows: 1) Intact acrosome: lilac acrosome; Non-intact acrosome: pink acrosome; 2) Live cells: non stained; Dead: stained. Data was statistically analysed using the SAS System for Windows. No differences were found between treatment and control groups for volume, motility, vigour, mean number of spermatozoa per animal, concentration, Intact acrosome, Intact membrane. The difference found on midpiece sperm defect (Se = 1,33 ± 0,53 and control = 3,78 ± 0,69, p = 0.0107) may be due to the damages caused by the selenium deficiency to the architecture of the midpiece, which compromises sperm mobility and fertilization capacity.
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Palavras-chave
Bird semen collection, Red-winged tinamou, Selenium, Animalia, Aves, Rhynchotus rufescens
Como citar
Brazilian Journal of Veterinary Research and Animal Science, v. 48, n. 5, p. 370-377, 2011.