[The effectiveness of intravaginal administration of estrumate for cows in silent heat in relation to the progesterone concentration in the blood].
In 22 silent heat cows with functional corpus luteum the blood progesterone concentrations and appearance of oestrus after administration of Estrumate were examined. 2 ml Estrumate (500 micrograms cloprostenol) were given intravaginally to 12 cows and intramuscularly to 10 cows respectively. Progesterone concentrations declined 32 hrs after application to levels below 3, 18 nmol/l in all animals. Within 10 days 66.6% of the cows after intravaginal administration of Estrumate and 70% after intramuscular administration came into oestrus. The results indicate that intravaginal application of Estrumate in silent cows with functional corpus luteum induced luteolysis and oestrus identical with intramuscular application.
Zdunczyk
S
S
Arbeitsgruppe für klinische Endokrinologie, Vet.-Med. Fakultät der Landwirtschaftlich-Technischen Akademie Olsztyn, Polen.
Andresen
P
P
Janowski
T
T
Chmielewski
A
A
D000282:Administration, Intravaginal; D000818:Animals; D002417:Cattle / Q000097:blood / Q000502:physiology*; D003008:Cloprostenol / Q000008:administration & dosage / Q000494:pharmacology*; D004971:Estrus / Q000187:drug effects*; D005260:Female; D007273:Injections, Intramuscular / Q000662:veterinary; D011374:Progesterone / Q000097:blood*
D003008:Cloprostenol; D011374:Progesterone
Untersuchungen über die Wirksamkeit der intravaginalen Applikation von Estrumate bei stillbrünstigen Kühen unter Berücksichtigung des Progesteronverlaufes im Blut (Klinische Mitteilung).