P.G. 600® is intended as a management tool to improve reproductive efficiency in swine production operations. It is used for the induction of estrus in prepuberal gilts and weaned sows that are experiencing a delayed return to estrus. Improves breeding performance in hot weather months. The combination of Serum Gonadotropin and Chorionic Gonadotropin mimics the naturally-occurring reproductive hormones, Follicle-Stimulating Hormone and Luteinizing Hormone. Prepuberal gilts should be over 5½ months of age and weigh at least 187 lb. Directions for Use: Prepuberal gilts should be injected when they are selected for addition to the breeding herd. Sows should be injected at weaning during periods of delayed return to estrus. Using a sterile syringe and a sterile 0.90 x 38 mm (20 G x 1 ½") hypodermic needle, transfer approximately 5 ml of the sterile diluent into the vial of freeze-dried powder. Shake gently to dissolve the powder. Transfer the dissolved product back into the vial of diluent and shake gently to mix. Inject one dose (5 ml) into the gilt or sow's neck behind the ear. Cautions: Treatment will not induce estrus in gilts that have already reached puberty (begun to cycle). Gilts that are less than 5½ months of age or that weigh less than 85 kg (187 lb) may not be mature enough to continue normal estrus cycles or maintain a normal pregnancy to full term after treatment. Treatment will not induce estrus in sows that are returning to estrus normally 3 to 7 days after weaning. Delayed return to estrus is most prevalent after the first litter; the effectiveness of P.G. 600 has not been established after later litters. Delayed return to estrus often occurs during periods of adverse environmental conditions, and sows mated under such conditions may farrow smaller than normal litters. DOSAGE FOR PG600 IN DOGS The dosage for Pg 600 that is recommended for dogs is – 1cc (or 1 ml) per 20 lbs. – .5 cc (or ml) per 10 lbs. – .25 cc (or ml) per 5 lbs. In dogs, it is recommended to give the pg 600 first dose then wait 5 days and give the second dose. Then wait 7 days for the 3rd dose, and another 7 days for a 4th dose, etc. You should stop giving the pg 600 as soon as you see blood or lots of swelling of the vulva. So if your female bleeds or has vulva swelling after the 1st dose, do not give anymore pg 600 to her.