Search
Now showing items 1-4 of 4
First report of bovine neosporosis in dairy cattle in Costa Rica
(British Veterinary Association, 1998-05-09)
NEOSPOROSIS has recently been recognised as a major cause of
abortion in dairy cattle worldwide (Barr and others 1990, Duff
and Otter 1994, Boulton and others 1995). The disease is caused
by the protozoan parasite, ...
Analysis of test day yield data of Costa Rican dairy cattle
(Elsevier, 1998)
Estimates of variance components for test day
records in an animal model that considered multiple
traits over multiple lactations were calculated using
REML methodology. Test day records were classified
into 11 periods ...
Tail stump sperm defect as a cause of sterility in an indobrasil (Bus indicus) bull
(Blackwell Wissenschafts-Verlag, Berlin, 1998)
The first known case of an Indobrasil (BOA indicus) bull, with a
frequency of 100% of the specific sperm abnormality, known
as ‘tail stump sperm defect’ is reported. A 5-year old bull was
located as a breeding sire in ...
Zymodeme and serodeme characterization of Leishmania Isolates obtained from Costa Rican patients
(Instituto Oswaldo Cruz, 1998-05)
Human leishmaniasis is widespread through-
out Central America and constitutes an important
public health problem. Annual incidence is esti-
mated to be about 20,000 cases (Carreira et al.
1995), of which 4,000 to ...