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Silva HVR, Nunes TGP, Mota Filho AC, Pinto JN, Silva AR, Silva LDMD. ADIÇÃO DE HIDROXITOLUENO BUTILADO (BHT) NO DILUIDOR ACP-106c PARA CONGELAÇÃO DE SÊMEN CANINO. Ciênc anim bras 2018. [DOI: 10.1590/1809-6891v19e-45896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo: Este estudo foi realizado para determinar o efeito de hidroxitolueno butilado (BHT) sobre a qualidade do sêmen canino congelado e descongelado, utilizando o diluidor à base de água de coco em pó (ACP-106c). Para tanto, foram realizadas quinze coletas de sêmen provenientes de cinco cães. O sêmen obtido foi diluído em ACP-106c acrescido de glicerol e gema de ovo. As amostras foram então transferidas para tubos contendo diferentes concentrações de BHT (0; 0,5; 1,0 e 2,0 mM). Em seguida, as amostras foram envasadas, congeladas e armazenadas em nitrogênio líquido. O sêmen coletado foi avaliado in natura quanto aos seguintes parâmetros: coloração, volume da fração espermática, motilidade total, vigor, concentração, morfologia e funcionalidade de membrana espermática. Após uma semana, as amostras foram descongeladas e avaliadas por meio de análise computadorizada, como também foram realizadas análises da funcionalidade de membrana e da morfologia espermática. A motilidade progressiva no grupo BHT 2,0 mM foi significativamente superior (P < 0,05) do que a do grupo BHT 0 mM (27,6 ± 11,7% vs. 19,0 ± 9,5%, respectivamente). Em todos os demais parâmetros avaliados, não houve diferença entre os grupos testados. Portanto, conclui-se que a adição do BHT ao diluidor ACP-106c não afetou a qualidade do sêmen canino pós-descongelação.
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de Souza MB, England GCW, Mota Filho AC, Ackermann CL, Sousa CVS, de Carvalho GG, Silva HVR, Pinto JN, Linhares JCS, Oba E, da Silva LDM. Semen quality, testicular B-mode and Doppler ultrasound, and serum testosterone concentrations in dogs with established infertility. Theriogenology 2015; 84:805-10. [PMID: 26116053 DOI: 10.1016/j.theriogenology.2015.05.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 05/19/2015] [Accepted: 05/19/2015] [Indexed: 11/29/2022]
Abstract
Retrospective examination of breeding records enabled the identification of 10 dogs of normal fertility and 10 dogs with established infertility of at least 12 months of duration. Comparisons of testicular palpation, semen evaluation, testicular ultrasound examination, Doppler ultrasound measurement of testicular artery blood flow, and measurement of serum testosterone concentration were made between the two groups over weekly examinations performed on three occasions. There were no differences in testicular volume (cm(3)) between the two groups (fertile right testis = 10.77 ± 1.66; fertile left testis = 12.17 ± 2.22); (infertile right testis = 10.25 ± 3.33; infertile left testis = 11.37 ± 3.30), although the infertile dogs all had subjectively softer testes compared with the fertile dogs. Infertile dogs were either azoospermic or when they ejaculated, they had lower sperm concentration, sperm motility, and percentage of morphologically normal spermatozoa than fertile dogs. Furthermore, infertile dogs had reduced sperm membrane integrity measured via the hypoosmotic swelling test. Infertile dogs had significantly lower basal serum testosterone concentrations (1.40 ± 0.62 ng/mL) than fertile dogs (1.81 ± 0.87 ng/mL; P < 0.05). There were subjective differences in testicular echogenicity in some of the infertile dogs, and important differences in testicular artery blood flow with lower peak systolic and end-diastolic velocities measured in the distal supratesticular artery, marginal testicular artery, and intratesticular artery of infertile dogs (P < 0.05). Notably, resistance index and pulsatility index did not differ between infertile and fertile dogs. These findings report important differences between infertile and fertile dogs which may be detected within an expanded breeding soundness examination.
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Affiliation(s)
- Mírley Barbosa de Souza
- Laboratory of Carnivore Reproduction, Veterinary School, State University, Fortaleza, Ceará, Brazil.
| | - Gary C W England
- School of Veterinary Medicine and Science, The University of Nottingham, Loughborough, UK
| | | | - Camila Louise Ackermann
- Department of Animal Reproduction and Veterinary Radiology, Faculty of Veterinary Medicine and Animal Science, Universidade Estadual Paulista Júlio de Mesquita Filho, Botucatu, São Paulo, Brazil
| | | | | | | | - José Nicodemos Pinto
- Laboratory of Carnivore Reproduction, Veterinary School, State University, Fortaleza, Ceará, Brazil
| | | | - Eunice Oba
- Department of Animal Reproduction and Veterinary Radiology, Faculty of Veterinary Medicine and Animal Science, Universidade Estadual Paulista Júlio de Mesquita Filho, Botucatu, São Paulo, Brazil
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de Freitas LA, Pinto JN, Silva HVR, da Silva LDM. Two-dimensional and Doppler sonographic prostatic appearance of sexually intact French Bulldogs. Theriogenology 2015; 83:1140-6. [DOI: 10.1016/j.theriogenology.2014.12.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 12/09/2014] [Accepted: 12/11/2014] [Indexed: 12/17/2022]
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de Souza MB, da Cunha Barbosa C, Pereira BS, Monteiro CLB, Pinto JN, Linhares JCS, da Silva LDM. Doppler velocimetric parameters of the testicular artery in healthy dogs. Res Vet Sci 2014; 96:533-6. [DOI: 10.1016/j.rvsc.2014.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 01/14/2014] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
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