In vitro performance and in vivo fertility of antibiotic-free preserved boar semen stored at 5 °C.

ABSTRACT:

Background

Hypothermic preservation of boar semen is considered a potential method for omitting antibiotics from insemination doses, thereby contributing to the global antibiotic resistance defence strategy. The main challenges are chilling injury to spermatozoa and bacterial growth during semen storage leading to reduced fertility.

Objectives

To examine chilling injury and the number and type of bacteria in boar semen stored at 5 °C in the absence of antibiotics, and to assess the applicability of hypothermic semen storage under field conditions.

Material and methods

Boar ejaculates were extended with AndroStar® Premium, stored at 17 °C with and at 5 °C without antibiotics and tested for functional sperm parameters by flow cytometry. Raw semen and extended samples we

SUBMITTER: Jakel H 

PROVIDER: S-EPMC7798330 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature