Results 211 to 220 of about 423,942 (250)

Origin and population structure of Brazilian hair sheep breeds

Animal Genetics, 2021
SummaryBrazilian hair sheep constitute a genetic diversity hotspot. These animals are found in the harsh environments of the Brazilian Northwest (semi‐arid) region. Genotypes (50K SNP chip) from seven Brazilian sheep breeds (five hair and two coarse wool types) and 87 worldwide breeds were used to test for population structure, admixture and genetic ...
T. P. Paim, S. R. Paiva, N. M. de Toledo, M. B. Yamaghishi, P. L. S. Carneiro, O. Facó, A. M. de Araújo, H. C. Azevedo, A. R. Caetano, R. M. Braga, C. McManus   +10 more
openaire   +2 more sources

Reproductive seasonality in creole hair sheep in the tropic

Tropical Animal Health and Production, 2015
The objective of the present study was to evaluate the annual ovulatory activity of hair sheep at 15° N. Nineteen Creole ewes with body weight of 40.8 ± 0.3 kg were used. The ovulatory activity was monitored for a year by quantifying progesterone concentrations in blood samples obtained from all the ewes every 7 days.
Jaime, Arroyo, Norma Judith, Sánchez-Hernández, Narciso Ysac, Ávila-Serrano, Marco Antonio, Camacho-Escobar, Mabel, Rodríguez-De-La-Torre   +4 more
openaire   +2 more sources

Mineral requirements of hair sheep in tropical climates

Journal of Animal Physiology and Animal Nutrition, 2016
SummaryIn this study, we evaluated the requirements of calcium (Ca), phosphorus (P), magnesium (Mg), sodium (Na) and potassium (K) for sheep hair growth. Experimental diets contained different levels of metabolizable energy [ME; 0.96, 1.28, 1.72, 2.18 and 2.62 Mcal/kg of dry matter, (DM), corresponding to 4.23, 5.64, 7.58, 9.61 and 11.55 MJ/kg DM]. The
E S, Pereira, A B R, Carmo, M R G F, Costa, A N, Medeiros, R L, Oliveira, A P, Pinto, M S S, Carneiro, F W R, Lima, A C N, Campos, S P, Gomes   +9 more
openaire   +2 more sources

Hair Sheep Performance in Brazil

2019
Hair sheep production in Brazil is centered in the northeast region bounded by latitudes Io N and 18° 307 S and longitudes 34° 307 W and 48° 20’ W. According to the Anuario Estatistico do Brasil, regional sheep population is estimated at 5,289,912 head. Hair sheep in Brazil include the Pelo do Boi, the generic term for the population of grades and true
E.A.P. de Figueiredo, E. R. de Oliveira, C. Bellaver, A. A. Simplício   +3 more
openaire   +1 more source

Phosphorus kinetics in growing hair sheep

Small Ruminant Research, 2008
Kinetics modelling was used to study the effects of different dietary phosphorus (P) levels on P metabolism in young sheep. An experiment was conducted with 12 Santa Inlambs receiving a basal diet of a hay-concentrate mixture. Different amounts of dicalcium phosphate were added to the basal diet, to give the following treatments levels of 0, 1.5, 3 and
H. Louvandini, D.M.S.S. Vitti, A.L. Abdalla, C.M. McManus   +3 more
openaire   +1 more source

Mitochondrial analysis sheds light on the origin of hair sheep

Animal Genetics, 2012
SummaryA total of 180 mtDNA sequences from hair Caribbean (93), West African (73) and Canarian‐wooled (14) sheep were analysed to shed light on the origin of hair sheep. A comparison of 360 Iberian sheep sequences retrieved from GenBank was performed to assess a possible European origin of the Caribbean hair sheep. These 180 sequences gave 48 different
Álvarez, I., Capote, J., Traoré, A., Fonseca, N., Pérez, K., Cuervo, M., Fernández, I., Goyache, F.   +7 more
openaire   +3 more sources

Chemical Characterization of Melanins in Sheep Wool and Human Hair

Pigment Cell Research, 1996
The color of hair and wool in mammals and feathers in birds is mostly determined by the quantity and quality of melanins that are synthesized in follicular melanocytes and transferred to keratinocytes. There are two chemically distinct types of melanin pigments: the black to brown eumelanins and the yellow to reddish pheomelanins.
H, Ozeki, S, Ito, K, Wakamatsu
openaire   +2 more sources

Fungi associated with sheep hairs in Saudi Arabia.

Czech Mycology, 1997
The frequency of occurrence of fungi in 25 hair samples of nine kinds of sheep, collected from different localities in Saudi Arabia, was estimated using three isolation methods at 28°C. Fortyfive species and one variety representing 23 genera were isolated and the most common genera were Chrysosporium, Alternaria, Aspergillus and Penicillium.
Laila A. Nasser, M. A. Abdel-Sater
openaire   +1 more source

Water requirements of African goats and haired-sheep

The Journal of Agricultural Science, 1971
SummaryA number of species of desert-dwelling ungulates (e.g. Grant's gazelle and oryx) can apparently survive desert conditions without drinking. We were interested in finding out whether goats and sheep herded in the arid Northern Frontier Region of Kenya utilized the same physiological strategies for reducing water requirements as the wild ungulates.
G. M. O. Maloiy, C. R. Taylor
openaire   +1 more source