Valeria Bornaghi

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A quick and successful encapsulation method of swine spermatozoa is described: hydroxypropylmethylcellulose and calcium chloride were added to the sampled ejaculate swine sperm (sperm-rich fraction: creamy white) and then this suspension was dropped into an aqueous solution of sodium alginate. In order to obtain different capsule thicknesses, different(More)
Research has been carried out to test bovine cervical mucus penetration (penetration) as a means for evaluating frozen-thawed bovine semen. A commercially available cervical mucus penetration test kit (the kit) was used. A total of 158 previously frozen semen samples collected from 61 bulls were thawed in a 37 C water-bath for 2 minutes. Four ways to(More)
In buffaloes, AI with sexed semen is not fully optimized, and the procedure has only been performed using the approach currently in use for cattle. The objective of the present work was to compare the pregnancy rates in Mediterranean Italian buffalo cows inseminated with sexed frozen-thawed semen at 2, 4, 6, and 8 million sperm per dose, using the Ovsynch(More)
The objectives of the present work were to compare the primary sex ratio in sperm with the secondary sex ratio recorded in the offspring produced by artificial insemination (AI) with the same sperm and assess whether the primary sex ratio is influenced by sperm survival and motility after thawing. Calving data of 98 Holstein Friesian bulls used in AI were(More)
A study was conducted on two young Italian Holstein bulls obtained by embryonic splitting and, therefore, genetically identical. The andrological evaluation of the subjects revealed a significant difference in semen freezability, valued according to forward motility after thawing (57.34 vs. 46.92; P < 0.01). There was, however, no difference in the quality(More)
The use of artificial insemination (AI) in buffalo (Bubalus bubalis) is limited by poor ovarian activity during the hot season, seasonal qualitative patterns in semen, low resistance of sperm cells in the female tract, difficulties in estrus detection, and variable estrus duration. Although AI procedures are commonly used in bovine, use of AI has been(More)
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