Results 211 to 220 of about 14,295 (248)

Pedigree analysis in the Brazilian Zebu breeds

Journal of Animal Breeding and Genetics, 2009
SummaryZebu breeds play an important role in cattle production systems in Brazil. To assess the genetic variability from animals in the Herd Books of Nelore, Gir and Guzerat breeds, generation intervals, inbreeding, effective population size and parameters of gene origin (effective number of founders, ancestors and founder genomes) were calculated ...
L.A. Josahkian, F. J. C. Faria, Anibal Eugênio Vercesi Filho, Fernando Enrique Madalena   +3 more
openaire   +3 more sources

Studies on the habits of zebu cattle. III. Water consumption of Zebu cattle

The Journal of Agricultural Science, 1955
In continuation of a series of studies on the habits of Zebu cattle, records for the quantities of water consumed every hour by ten cattle during twenty periods of 24 hr. observations have been analysed.A large variation in day-to-day consumption was evident, but water was taken on an average during 8 hr.
J. I. Taylor, D. H. L. Rollinson, K. W. Harker   +2 more
openaire   +2 more sources

Rectum-testis Temperature Gradient in Zebus

Zentralblatt für Veterinärmedizin Reihe A, 2010
Summary The mean rectal-testicular temperature gradient of four Nelore zebus was 5.2 ± 0.8 °C. There was no difference in the rectal (38.8 ± 0.4 °C) and intratesticular (33.6 ± 1.0 °C) temperatures between animals lying in the sun and those in the shade.
F. M. Cardoso, H. P. Godinho
openaire   +3 more sources

Œstrus in Zebu Cattle in Uganda

Nature, 1955
DURING investigations into the possibility of artificial insemination of indigenous Zebu and Nganda cattle with homologous semen obtained by electrical stimulation, the œstrous cycles of an experimental group of heifers have been determined, using marked vasectomized bulls.
openaire   +3 more sources

Gross Anatomy of the Penis Development in Zebus*

Anatomia, Histologia, Embryologia: Journal of Veterinary Medicine Series C, 1980
In twenty-two Brazilian Nelore zebus the following measurments of the penis were made: full length, length of the free part and diameter. Penile length is highly correlated with age and body weight.
F. M. Cardosa, Hugo Pereira Godinho
openaire   +3 more sources

Monensin, virginiamycin, and flavomycin in a no-roughage finishing diet fed to zebu cattle.

Journal of Animal Science, 2016
Two experiments were designed to evaluate the effects of monensin, virginiamycin, and flavomycin on growth performance, carcass characteristics, apparent total tract nutrient digestibility, and rumen fermentation of zebu cattle fed a no-roughage ...
B. J. M. Lemos, F. G. F. Castro, L. S. Santos, B. P. C. Mendonça, V. R. M. Couto, J. J. R. Fernandes   +5 more
semanticscholar   +1 more source

Bos indicus (Zebu)

1968
The karyotype of Bos indicus is identical with that of Bos taurus except for the morphology of the Y chromosome. The Y chromosome of B. taurus is a small metacentric, but that of B. indicus is a small acrocentric. Autoradiographs of DNA synthesis during the late S phase invariably show a late replicating small acrocentric.
T. C. Hsu, Kurt Benirschke
openaire   +2 more sources

A comparison of field tick infestation on N'Dama, Zebu and N'Dama×Zebu crossbred cattle

Veterinary Parasitology, 1993
Tick burdens, estimated from cumulative tick counts, were determined on N'Dama, Zebu and F1 N'Dama x Zebu crossbred cattle. N'Dama showed significantly fewer ticks than the Zebu and F1 cattle (P < 0.001). A previous trypanosomosis infection did not affect tick burdens on the three genotypes.
R. C. Mattioli, M. Bah, Faye Ja, S. Kora, M. Cassama   +4 more
openaire   +3 more sources

Mother–Offspring Interactions in Zebu Cattle

Reproduction in Domestic Animals, 2008
ContentsThe knowledge of the interaction between mother and offspring might contribute to enhance the welfare of the offspring and to improve the reproductive efficiency of the cow. However, there is still little information available about such interaction in some cattle breeds.
da Costa, M. J. R. Paranhos, Schmidek, A., Toledo, L. M.   +2 more
openaire   +4 more sources

Reproductive performance of Zebu compared with Charolais × Zebu females in a humid tropical environment

Animal Science, 1976
SUMMARYComponents of reproductive efficiency of Zebu-type and Charolais × Zebu-type (1/2, 3/4 and 7/8) females were compared. Zebus had longer mean intervals from calving to first service (57·8 days) and from calving to conception (46·0 days). Least squares means for both traits were respectively 129·8 and 145·1 days.
F. E. Madalena, null A. Hinojosa C.
openaire   +2 more sources