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Comparisons of commercial Triladyl and locally manufactured extenders for the chilling of semen and their effects on pregnancy rates after transcervical AI in Bangladeshi Indigenous (Ovis aries) sheep
Rekha, Azizunnesa; Zohara, B. F; Bari, F. Y; Alam, M. G. S.
Afiliação
  • Rekha, Azizunnesa; Chittagong Veterinary and Animal Sciences University. Faculty of Veterinary Medicine. Department of Medicine and Surgery. Chittagong. BD
  • Zohara, B. F; Hajee Mohammad Danesh Science & Technology University. Faculty of Veterinary & Animal Science. Department of Medicine, Surgery and Obstetrics. Dinajpur. BD
  • Bari, F. Y; Bangladesh Agricultural University. Faculty of Veterinary Science. Department of Surgery and Obstetrics. Mymensingh. BD
  • Alam, M. G. S; Bangladesh Agricultural University. Faculty of Veterinary Science. Department of Surgery and Obstetrics. Mymensingh. BD
Anim. Reprod. (Online) ; 13(4): 735-742, Oct.-Dec.2016. graf, tab
Article em En | VETINDEX | ID: biblio-1461237
Biblioteca responsável: BR68.1
Localização: BR68.1
ABSTRACT
Two different extenders were compared for their effects on preservation of semen from Indigenous rams and on pregnancy rate (PR) in Indigenous ewes. Semen was collected from nine Indigenous rams (Ovis aries) once a week using an artificial vagina. Each ejaculate was divided into 2 aliquots, diluted with either commercial (Triladyl®) or locally manufactured (tris, fructose, citric acid, egg yolk TFE, prepared in own laboratory) extenders and kept at 4°C for 48 h. Motility, viability, functional integrity and morphological changes were evaluated at 0, 24 and 48 h. Synchronized oestrus ewes inseminated transcervically with 24 and 48 h of preserved chilled semen diluted with Triladyl and TFE extenders separately. Semen preserved in Triladyl had better motility, viability, and functional integrity at 24 and 48 h (P 0.05) over the entire period of preservation. The quality of semen decreased (P 0.05) the overall PR after transcervical AI (TCAI) in ewes. Increased preservation time (48 h) negatively affected the PR in TFE extended semen compared with than that of Triladyl. The results suggest that the quality of chilled semen (motility, viability, and functional integrity) is more improved when preserved in Triladyl than if extended with a TFE. PR may higher when TCAI is performed with chilled semen preserved in Triladyl for a longer time than TFE. However, TFE extender may be used to dilute the semen for chilling and used in TCAI to get similar PR of Triladyl up to 24 h of preservation.
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Texto completo: 1 Base de dados: VETINDEX Assunto principal: Preservação do Sêmen / Ovinos / Taxa de Gravidez / Análise do Sêmen Limite: Animals Idioma: En Revista: Anim. Reprod. / Anim. Reprod. (Online) Ano de publicação: 2016 Tipo de documento: Article / Project document

Texto completo: 1 Base de dados: VETINDEX Assunto principal: Preservação do Sêmen / Ovinos / Taxa de Gravidez / Análise do Sêmen Limite: Animals Idioma: En Revista: Anim. Reprod. / Anim. Reprod. (Online) Ano de publicação: 2016 Tipo de documento: Article / Project document