Efficacy of ceftiofur hydrochloride sterile suspension administered parenterally for the treatment of acute postpartum metritis in dairy cows.

Objective: To evaluate the efficacy of ceftiofur hydrochloride sterile suspension administered parenterally for treatment of acute postpartum metritis (APM) in dairy cows.

Design: Multilocation, randomized block, field trial.

Animals: 406 cows in the first 14 days postpartum.

Feedlot performance of steers treated concurrently with ceftiofur crystalline-free acid subcutaneously in the posterior aspect of the ear and a growth-promoting implant.

Ceftiofur crystalline-free acid sterile suspension (CCFA-SS), a long-acting formulation of ceftiofur formulated for subcutaneous injection in the middle third of the posterior aspect of the ear, is being developed for the control and treatment of bovine respiratory disease. A study was designed to evaluate average daily gain (ADG) and feed efficiency (FE) for cattle through 140 days in the feedlot after CCFA-SS was administered concurrently in the same ear with a growth-promoting implant. On Day 0, steers (n = 207) averaging 189 kg in weight were randomly assigned to the following treatments: Revalor -S implant (120 mg trenbolone acetate and 24 mg estradiol per implant; Hoechst-Roussel Agri-Vet Company) (n = 64); CCFA-SS at 6.

Dose determination and confirmation for ceftiofur crystalline-free acid administered in the posterior aspect of the ear for control and treatment of bovine respiratory disease.

Three studies were conducted to determine and confirm the effective dosage rate of ceftiofur crystalline-free acid sterile suspension (CCFA-SS, 200 mg ceftiofur equivalents [CE]/ml), a long-acting ceftiofur formulation, for control and treatment of bovine respiratory disease (BRD). In each study, CCFA-SS was administered once by subcutaneous (SC) injection in the middle third of the posterior aspect of the ear. Study 1 was conducted using an intratracheal challenge with Mannheimia (formerly Pasteurella) haemolytica and dosages ranging from 0 to 8.