Life Sciences Commons^™

Blueberry Advisory Committee Research Report, H Y. Forsythe Jr, John M. Smagula, David E. Yarborough, Antonia L. Hoelper, C W. Murdoch, Edward J. Mclaughlin, Jeff Risser, Tom Degomez, Mike Goltz, Tom Cs Yang, Angela Yang, Carolyn Wills, M F. Trevett

Wild Blueberry Research Reports

The 1985 edition of the Blueberry Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers with the Maine Agricultural Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Control of secondary blueberry pest insects

2. Effect of pruning practices on blueberry insect abundance

3. Effect of hexazinone on species distribution in lowbush blueberry fields

4. Dichlobenil for control of bunchberry

5. Evaluation of postemergence herbicides for grass control

6. Hand-wiper applications of herbicides on woody weeds

7. Evaluation of steam …

Evaluation Of Holstein Bull Sperm Quality By Flow Cytometry, B.E. Ballachey, L.K. Jost, D.P. Evenson

South Dakota Beef Report, 1986

Frozen semen samples from Holstein bulls were measured by the sperm chromatin structure assay (SCSA), a new procedure utilizing flow cytometry for the valuation of sperm quality. Fertility ratings of the bulls were known based on their use in artificial insemination matings. Values obtained by the SCSA were highly correlated (r= -.58 P<.01 with bull fertility ratings. Results of this research indicate the SCSA may be a valuable technique for measurement of sperm cell quality and detection of suboptimal fertility in bulls.