Results 221 to 230 of about 23,232 (266)

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   +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.
D. H. L. Rollinson, K. W. Harker, J. I. Taylor   +2 more
openaire   +1 more source

Environmental variables responsible for Zebu cattle thermal comfort acquisition

International Journal of Biometeorology, 2021
The aim of this study was to estimate, using data mining, which microclimate and behavioral variables affect the behavior of animals to seek shaded or sunny areas. The experiment was carried out between January and May 2016 in an integrated crop-livestock-forest system. In this system, we defined two different areas: shaded and sunny.
Denise Volpi, Fabiana Villa Alves, Alan da Silva Arguelho, Marcos Martinez do Vale, Matheus Deniz, Maity Zopollatto   +5 more
openaire   +2 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   +2 more sources

Response of Nigerian zebu cattle to Zeranol implants

Tropical Animal Health and Production, 1980
The effect of Zeranol, an anabolic agent, on the weight gains of Nigerian zebu fattening bulls was investigated over a period of 16 weeks. Implanted Sokoto Gudali and White Fulani bulls showed average daily weight gains of 0.5 and 0.49 kg respectively as compared to 0.47 and 0.41 kg by non-implanted counterparts.
T U, Obi, M A, Daniyan, L O, Ngere
openaire   +2 more sources

Efective Crossbreeding Systems Utilizing Zebu Cattle

Journal of Animal Science, 1980
The basic objectives and procedures for successful crossbreeding of beef cattle were considered, with special reference to the levels of realized hybrid vigor that might be anticipated for different crossbreeding programs involving the American Brahman (Z1) and European (Ej) breeds. Intralocus heterozygosis levels with respect to breed origin of genes (
openaire   +2 more sources

Postpartum Ovarian Activity in South Asian Zebu Cattle

Reproduction in Domestic Animals, 2008
ContentsTimely onset of postpartum ovarian activity is vital for optimal reproductive performance of dairy cows. Much depends upon genetic constitution of an animal although several factors interplay to govern the onset of postpartum ovarian activity. South Asian zebu cattle have much longer service period when compared with other exotic or crossbred ...
P S, Brar, A S, Nanda
openaire   +2 more sources

Antigen and protein polymorphism in Somali zebu cattle*

Animal Blood Groups and Biochemical Genetics, 1980
SummaryBlood samples, collected from 143 Boran and 34 Dawara adult cattle, belonging to a state farm in Mogadiscio, have been tested for red cell antigens with 40 cattle reagents and for Hb, CA, Tf, Alb and Ami types.Gene frequencies are presented and the results indicate that the two breeds are very similar in all the systems studied.
L, Di Stasio, G, Sartore, C, Ginanni
openaire   +2 more sources

Preweaning Growth Rate and Weaning Traits of Angus, Zebu and Zebu-Cross Cattle

Journal of Animal Science, 1982
A 4-yr study was conducted on the preweaning growth rate and weaning traits of 620 calves from: (1) Angus (A), Brahman (B), Brangus (BR) and Africander-Angus (AF) dams sired by A and B bulls; (2) BR dams mated to BR sires and (3) AF dams mated to AF sires. Heifers were placed in the breeding pastures as 2-yr-olds and exposed to bulls for 75 d.
W L, Reynolds, T M, DeRouen, K L, Koonce
openaire   +2 more sources

Reproductive performance of Zebu cattle in Mexico

Theriogenology, 1991
Abstract Clinical observations were carried out on 32 and 38 nonpregnant Zebu females during the rainy and the dry season, respectively. Of the animals studied, 18 from the rainy season group and 13 from the dry season group failed to show estrus. The length of proestrus, estrus, and the ostrous cycle as well as ovulation time were determined only in
C. Lamothe-Zavaleta, G. Fredriksson, A. Madej   +2 more
openaire   +1 more source