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Bovine semen sexing agent - MALE


Beef production and returns from steer calves can be 15-20% in excess of that of a heifer calf. Feeder calf producers will want to take a look at incorporating gender selection and BULLPLUS into their AI program. For a few cents on the dollar you can increase gross receipts up to 25%!


Whether you need more bull calves to sell, more male embryos to transplant, or want to incorporate gender selection into your breeding management decisions, BULLPLUS will help you plan and make better decisions.


Turn the bottom-end of your herd into top-end beef producers. F1 Dairy x Beef cross-bred steers can bring top-dollar at the sale barn. Use BULLPLUS to ensure that it is a steer.

BULLPLUS in a new semen sexing kit.

Sexing of semen will never be easier. Everything needed for sexing a single straw of semen is freeze-dried in the mixing vial. It can be used with any bull or any frozen semen you already have in the tank. Semen is thawed as usual and mixed in the BULLPLUS vial. Incubate for 20 minutes and the sexed semen is ready for insemination.

How does it work?

BULLPLUS works by "accelerating" the motility of only the Y-chromosome bearing (male) sperm while "reducing" the motility of the X-chromosome bearing (female) sperm. As a result, the male sperm arrive at the point of fertilization ahead of the female sperm. More ovum are then fertilized by the male sperm resulting in a higher percentage of males calves. There is no need to sort sperm mechanically; the gender-biased sperm are sorted in the reproductive tract of the cow.

Are pregnancy rates affected?

Conception rates are excellent using BULLPLUS. Many producers are reporting improved conception rates!


Keep away from heat, moisture, and bright sunlight. We recommend transporting in a cool, insulated carton.

Storage conditions:

For long-term storage, keep in the freezer (at or below -20oC) for up to two years.

Expiration Date:

This product is a biopharmaceutical agent that is warrented from expiration for 2 years from the date of manufacture. Improper handling and storage will void this warrant.

Timing of insemination:

It is important when using BULLPLUS to inseminate close to the time of ovulation. When breeding from first observed standing heat, breed virgin and 1st calf heifers 20-22 hrs. following the first observed standing heat. With muture cows, breed 22-24 hrs. after first observed standing heat. If you use the OvSynch timed breeding protocol, breed virgin and 1st calf heifers at 20-24 hrs and cows at 22-26 hrs. following the last GnRH injection.


Contact Info
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Persian Dam Kesht Aria Co.
Phone: (+98) 21-88873203
Mobile: (+98) 912-1331492
(+98) 912-4577741
(+98) 912-1200096
Fax: (+98) 21-88798065