'Sexed semen' presentation slideshows

Opportunities and Challenges with Sexed Semen

Opportunities and Challenges with Sexed Semen. Joseph C. Dalton, PhD. Introduction. Sperm contain an X or a Y chromosome. Ova contain only an X chromosome. When fertilization occurs: X-sperm + X-ova = XX female Y-sperm + X-ova = XY male. Introduction.

684 views • 41 slides

Section II Artificial Insemination Technique

Section II Artificial Insemination Technique. Deposit semen at the right place. 90% lost due to retrograde flow (Mitchell et al. 1985). Can horn breeding reduce retrograde loss and help to improve fertility???. Horn vs. body deposition.

658 views • 41 slides

401 views • 30 slides

IHFA Cork Club 27 th Jan 2014

248 views • 24 slides

Abstr. 4183

X. X. X. Effect of sexed-semen use on Holstein conception rate, calf gender, dystocia, and stillbirth in the United States. Abstr. 4183. Traits. Conception rate Calf gender Male, female, single, twins Dystocia Births reported as requiring considerable force or extremely difficult

268 views • 13 slides

Holstein service-sire fertility for heifer and cow breedings with conventional and sexed semen

Holstein service-sire fertility for heifer and cow breedings with conventional and sexed semen. Sire Conception Rate. Implemented in August 2008 Based on: Last 4 years of breedings Up to 7 conventional semen breedings Parities 1 through 5 10 effects to predict bull conception rate

262 views • 13 slides

Abstr. 4183

X. X. X. Effect of sexed-semen use on Holstein conception rate, calf gender, dystocia, and stillbirth in the United States. Abstr. 4183. Traits. Conception rate Calf gender Male, female, single, twins Dystocia Births reported as requiring considerable force or extremely difficult

133 views • 13 slides

CONCLUSIONS

INTRODUCTION

50 views • 1 slides