Boar semen controlled-delivery system: Morphological investigation and in vitro fertilization test

Daniele Vigo, Massimo Faustini, Maria Luisa Torre, Alessandro Pecile, Simona Villani, Annalia Asti, Roberta Norbeti, Lauretta Maggi, Ubaldo Conte, Fausto Cremonesi, Simona Stacchezzini, Giovanni Maffeo

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A technology for encapsulation of swine semen in barium alginate and protamine alginate has recently been proposed for the controlled release of the spermatozoa, thus reducing the number of instrumental inseminations required. Controlled-release capsules containing swine spermatozoa were prepared by adding saturated BaCl2 solution to ejaculate and dropping the resulting suspension into a sodium alginate solution, leading to the formation of barium alginate capsules. A second type of capsule was obtained by cross-linking the barium alginate with protamine sulfate. Two types of membrane were thus obtained: barium alginate gel and a protamine cross-linked alginate membrane. Morphological (scanning electron microscopy and transmission electron microscopy), functional (motility, membrane integrity and in vitro fertilization test) and technological (capsule structure and weight) approaches were used to characterize the encapsulated spermatozoa and the controlled-delivery system. No differences in terms of morphological and functional characteristics (acrosome integrity and spermatozoa motility) between free and encapsulated semen were found. The technological process did not compromise in vitro fertilization potency of the spermatazoa, although seasonal variability was found. The capsule weight was related to either the pH of the semen or the season. This study represents the starting point for the development of further investigations into the storage and release kinetics of cells from the capsules and for the development of an in vivo fertilization protocol.

Original languageEnglish
Pages (from-to)307-314
Number of pages8
JournalReproduction, Fertility and Development
Volume14
Issue number5-6
DOIs
Publication statusPublished - 2002

Fingerprint

in vitro fertilization
alginates
Fertilization in Vitro
Semen
boars
barium
semen
protamines
Capsules
Protamines
Spermatozoa
spermatozoa
testing
alginate gels
Membranes
swine
sodium alginate
Swine
acrosome
fertilization (reproduction)

Keywords

  • Alginate
  • Boar spermatozoa
  • Cell encapsulation
  • Scanning electron microscopy
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Reproductive Medicine
  • Developmental Biology
  • Endocrinology

Cite this

Vigo, D., Faustini, M., Torre, M. L., Pecile, A., Villani, S., Asti, A., ... Maffeo, G. (2002). Boar semen controlled-delivery system: Morphological investigation and in vitro fertilization test. Reproduction, Fertility and Development, 14(5-6), 307-314. https://doi.org/10.1071/RD02004

Boar semen controlled-delivery system : Morphological investigation and in vitro fertilization test. / Vigo, Daniele; Faustini, Massimo; Torre, Maria Luisa; Pecile, Alessandro; Villani, Simona; Asti, Annalia; Norbeti, Roberta; Maggi, Lauretta; Conte, Ubaldo; Cremonesi, Fausto; Stacchezzini, Simona; Maffeo, Giovanni.

In: Reproduction, Fertility and Development, Vol. 14, No. 5-6, 2002, p. 307-314.

Research output: Contribution to journalArticle

Vigo, D, Faustini, M, Torre, ML, Pecile, A, Villani, S, Asti, A, Norbeti, R, Maggi, L, Conte, U, Cremonesi, F, Stacchezzini, S & Maffeo, G 2002, 'Boar semen controlled-delivery system: Morphological investigation and in vitro fertilization test', Reproduction, Fertility and Development, vol. 14, no. 5-6, pp. 307-314. https://doi.org/10.1071/RD02004
Vigo, Daniele ; Faustini, Massimo ; Torre, Maria Luisa ; Pecile, Alessandro ; Villani, Simona ; Asti, Annalia ; Norbeti, Roberta ; Maggi, Lauretta ; Conte, Ubaldo ; Cremonesi, Fausto ; Stacchezzini, Simona ; Maffeo, Giovanni. / Boar semen controlled-delivery system : Morphological investigation and in vitro fertilization test. In: Reproduction, Fertility and Development. 2002 ; Vol. 14, No. 5-6. pp. 307-314.
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