Zobrazeno 1 - 8
of 8
pro vyhledávání: '"John C. Spitzer"'
Autor:
John C. Spitzer, Fred M. Hopkins
Publikováno v:
Veterinary Clinics of North America: Food Animal Practice. 13:283-293
In 1993, The Society for Theriogenology published revised standards for breeding soundness evaluation of bulls. These revised standards replaced the old semen score format with minimum acceptable scores for scrotal circumference (varies with age), mo
Autor:
John C. Spitzer, Fred M. Hopkins
Publikováno v:
Veterinary Clinics of North America: Food Animal Practice. 13:295-304
Breeding Soundness Evaluations (BSEs) are a useful tool to improve reproductive performance and profitability in beef herds. Veterinarians providing this service must be thorough in their evaluation, especially in yearling bulls. The 1993 Society for
Autor:
William E. Price, John C. Spitzer
Publikováno v:
Food Chemistry. 50:19-23
Rates of infusion for the four major tea flavanols from a Japanese green tea have been measured for the first time. The results indicate that the ungallated epicatechin and epigallocatechin infuse faster than the gallated flavanols epicatechin gallat
Autor:
John C. Spitzer, William E. Price
Publikováno v:
Food Chemistry. 47:271-276
The concentrations of the major tea flavanols in nine green teas from China and Japan have been investigated. Results show that epi-gallocatechin (EGC) is the most prevalent flavanol and not epi-gallocatechin gallate (EGCG) as previously thought. Stu
Autor:
John C. Spitzer, William E. Price
Publikováno v:
Food Chemistry. 46:133-136
The temperature eVect on the infusion of solubles from black tea leaf was examined by analysing the infusion characteristics of UV active solubles present in the tea leaf by spectrophotometric means. The results represent the Wrst set of kinetic data
Autor:
John C. Spitzer, Robert H. Carpenter
Publikováno v:
Theriogenology. 15:389-393
A 10-day treatment regime with a subcutaneous ear implant containing 3 mg of norgestomet, accompanied by an intramuscular injection of 1.5 mg norgestomet and 0.5 mg estradiol valerate (EV) on day 1 and 750 I. U. pregnant mares serum gonadotropin (PMS
Autor:
John C. Spitzer
Publikováno v:
Theriogenology. 17:373-381
A study was conducted to evaluate the effectiveness of treatment with Syncro-Mate-B (SMB) and gonadotropin releasing-hormone (GnRH) on inducing a fertile estrus and/or ovulation in peripuberal beef heifers. Two hundred and twenty-three, 13 to 15 mont
Autor:
Robert H. Carpenter, John C. Spitzer
Publikováno v:
Theriogenology. 16(3)
Two experiments were conducted to evaluate the efficacy of a 3-mg ear implant of norgestomet, left in situ for 10 days, in conjunction with a single injection of 1.5 mg norgestomet and 0.5 mg estradiol valerate (EV) for controlling fertile estrus in