Characterization of the Exonic Regions of the JY-1 Gene in Zebu Cattle and Buffaloes

2013 ◽  
Vol 48 (6) ◽  
pp. 918-922 ◽  
Author(s):  
GMF de Camargo ◽  
F Baldi ◽  
LCA Regitano ◽  
H Tonhati
Keyword(s):  
Zebu Cattle

scholarly journals Characterization of carcasses of Zebu cattle raised in a semiarid region according to sex

2020 ◽  
Vol 49 ◽  
Author(s):  
Filipe Martins Ferraz ◽  
Fredson Vieira e Silva ◽  
Laura Lúcia dos Santos Oliveira ◽  
Iran Borges ◽  
Dorismar David Alves ◽  
...  
Keyword(s):  
Semiarid Region ◽  
Zebu Cattle

Ecological, morphological and genetic characterization of sympatric Haemonchus spp. parasites of domestic ruminants in Mauritania

Parasitology ◽  
1995 ◽  
Vol 110 (4) ◽  
pp. 483-492 ◽  
Author(s):  
P. Jacquiet ◽  
J. F. Humbert ◽  
A. M. Comes ◽  
J. Cabaret ◽  
A. Thiam ◽  
...  
Keyword(s):  
Rainy Season ◽  
Genetic Characterization ◽  
Random Amplified Polymorphic Dna ◽  
Intraspecific Variability ◽  
Species Traits ◽  
The Other ◽  
Survival Strategies ◽  
Zebu Cattle ◽  
Sheep And Goats

SUMMARYThe 4 species of ruminants (dromedary, zebu cattle, sheep and goat) in arid areas of Mauritania harboured Haemonchus spp. as the most frequent internal parasite. This was a rare situation where the 3 putative species, H. longistipes (dromedary), H. placet (zebu cattle) and H. contortus (sheep and goat) occurred sympatrically. The study was undertaken on hosts slaughtered at the Nouakchott abattoir, on the basis of monthly collection of worms. The environment was very unfavourable to H. placei and unfavourable to H. contortus, as intensity of infection remained low throughout the year, whereas infection in the dromedary was 10 to 20-fold higher. The survival strategies during the long, dry season were different: the surviving stages were either 4th-stage larvae in digesta (dromedaries), 4th-stage larvae either in digesta or mucosae (cattle), or 4th-stage larvae in mucosae and few adults (sheep and goats). The prolificacy of female worms, indicative of the potential to contaminate pastures, was similar for all Haemonchus spp. in the rainy season. H. longistipes behave differently during the pre-rainy season as no increase of prolificacy could be demonstrated as observed in the other species. Traits of vulvar morphology are considered as markers of ecological adaptation and were studied. The knobbed and smooth female morphs (in equal proportions) were the most frequent in H. longistipes, the knobbed morph out-numbered the other morphs in H. placei, and all 3 morphs were present in sheep and goats with the linguiform form being predominant. Genetic characterization of the 3 species was performed by means of Random Amplified Polymorphic DNA (RAPD). Three groups were obtained from analysis of these data: 1 group with individuals of H. contortus, 1 group with individuals of H. placei, and 1 group with individuals of H. longistipes. This indicated that, although the 3 species were valid, H. contortus and H. placei were more similar. Intraspecific variability was 2-fold higher in H. contortus than in the 2 other species. The ecological, morphological and genetical studies showed that H. longistipes, H. placei and H. contortus could be arranged in increasing order of variability.

scholarly journals Genetic Characterization of Indubrasil Cattle Breed Population

2018 ◽  
Vol 5 (4) ◽  
pp. 98
Author(s):  
Ricardo Zanella ◽  
Luísa Lago ◽  
Arthur da Silva ◽  
Fábio Pértille ◽  
Nathã de Carvalho ◽  
...  
Keyword(s):  
Large Scale ◽  
Cattle Breed ◽  
Pedigree Information ◽  
Zebu Cattle ◽  
Runs Of Homozygosity ◽  
Effective Population ◽  
Single Nucleotide ◽  
Genomic Markers ◽  
Snp Panel

The Indubrasil breed was developed in the Brazilian region called Triângulo Mineiro as a result of a cross between zebu cattle. Initially, it was used as a terminal cross and currently it represents approximately 4.45% of all the Brazilian zebu cattle. Studies were conducted to estimate genetic parameters in the Indubrasil using pedigree information, however, until now, no study has been developed using large-scale genomic markers in this breed. Pedigree information are widely used to investigate population parameters; however, they can neglect some estimates when compared to the use of genomic markers. Therefore, the objective of this study was to investigate the population structure and the genetic diversity of Indubrasil cattle using a high-density Single Nucleotide Polymorphism (SNP) panel (Illumina BovineHD BeadChip 700k). Levels of genomic homozygosity were evaluated using three different approaches: Runs of homozygosity (FROH), % of homozygosis (FSNP), and inbreeding coefficient (Fx). Further, Runs of Homozygosity (ROH) segments conserved among the animals were investigated to identify possible regions associated with the breed characteristics. Our results indicate that even the Indubrasil breed having a small effective population size, the levels of homozygosity (FROH = 0.046) are still small. This was possibly caused by the cross conducted among different breeds for its development. It suggests no immediate risks associated with loss of genetic variation. This information might be used in breeding programs, for the breed conservation and for the expansion of the Indubrasil breed.

Phenotypic characterization of the Saudi Arabian Hassawi cattle breed

1997 ◽  
Vol 21 ◽  
pp. 35-42 ◽  
Author(s):  
T. A. Mohammed
Keyword(s):  
Bos Taurus ◽  
Bos Indicus ◽  
Cattle Breed ◽  
Farming System ◽  
Phenotypic Characterization ◽  
Zebu Cattle ◽  
Body Conformation ◽  
High Feed ◽  
Farming Families

SummaryHassawi cattle breed is a mix of Bos indicus and Bos taurus. The cattle are raised in the Eastern province of the country by farming families in mixed farming system. The breed numbers are declining very fast, from 10 449 head in 1986 to an estimated maximum of 4 500 head at present.The decrease is mainly due to replacement by exotic breeds, the indiscriminate crossing with these exotics, particularly in view of the scarcity of the Hassawi bulls for mating. Animals are small in size, mature body weight 210-270 kg for bulls and 150-200 kg for cows, quite uniform in colour (light red) and body conformation have conspicuously reduced dewlap and umbilical folds and relatively large hump. Animals are heat tolerant, sustain high feed intake under ambient temperature, resistant to many diseases prevailing in the region and cows have good mothering ability. Productivity of the breed in terms of meat and milk is low when compared to that of exotics in high input production environments, but reproduction performance excels that of temperate breeds and zebu cattle.Efforts should be made to stop the decline in the breed numbers and to conserve the breed as an asset for production under harsh environment.

scholarly journals Characterization of Oligofructose-Induced Acute Rumen Lactic Acidosis and the Appearance of Laminitis in Zebu Cattle

Animals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 429 ◽  
Author(s):  
Rejane dos Santos Sousa ◽  
Francisco Leonardo Costa de Oliveira ◽  
Mailson Rennan Borges Dias ◽  
Natalia Sato Minami ◽  
Leonardo do Amaral ◽  
...  
Keyword(s):  
Lactic Acidosis ◽  
Zebu Cattle ◽  
Respiratory Compensation ◽  
Rumen Ph ◽  
Experimental Induction ◽  
Carbon Dioxide Pressure ◽  
Induction Model ◽  
Locomotion Score ◽  
Fluid Sampling

The objective of this study was to characterize oligofructose-induced acute rumen lactic acidosis and its consequences in zebu cattle. We used 29 Nellore heifers which were submitted to experimental induction of laminitis by oligofructose excess. During the induction period, the animals underwent clinical examination, including laminitis diagnosis (hoof pressure testing and locomotion score) and blood and ruminal fluid sampling every six hours (over the initial 24 h) and every 12 h (up to 72 h), after the highest dose. Almost half of the animals (48.1%) required treatment with bicarbonate and saline to correct metabolic acidosis and dehydration. Due to this treatment, the animals were analyzed in treated (n = 13) and non-treated (n = 14) groups. The induction model promoted marked reduction in rumen pH, rumen anaerobiosis, carbon dioxide pressure, and increase in rumen lactate, blood osmolarity, and cortisol concentration. The animals treated had lower values of rumen pH and marked dehydration, evidenced by the increase in globular volume and serum urea. The clinical condition caused by excess oligofructose is severe, with the differential of the appearance of ephemeral fever and respiratory compensation against systemic acidosis, in addition to the frequent appearance of laminitis.

scholarly journals STUDY ON PREVALENCE AND CYST CHARACTERIZATION OF HYDATIDOSIS IN CATTLE SLAUGHTERED AT WOLAYTA SODDO MUNICIPAL ABBATTIOR

2017 ◽  
Vol 5 (7) ◽  
pp. 60-78 ◽  
Author(s):  
Ataro Abera ◽  
Tamirat Teklebran
Keyword(s):  
Hydatid Cyst ◽  
Hydatid Disease ◽  
Significant Variation ◽  
Postmortem Examination ◽  
Zebu Cattle ◽  
Hydatid Cysts ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Place Of Origin

A cross-sectional survey of bovine hydatidosis was conducted on local zebu cattle slaughtered at Wolayta Soddo Municipal Abattoir from November, 2012 to March, 2013 to determine the prevalence and cyst characterization caused by hydatid disease. No statistical significant variation was observed with regards to place of origin and age of the animals (P > 0.05). After postmortem examination, hydatid cysts were collected and cyst characterization was conducted. Out of a total of 446 animals examined, 50(11.21%) harboring one or more hydatid cyst. The result obtained from Postmortem examination indicated that the lung was the most commonly affected organ followed by liver. The involvement of lung, Liver, kidney, spleen and heart was found to be 50%, 26.92%, 5.77%, 9.62% and 7.69% respectively. From the total of 52 cysts counted, 14(26.69%), 18(34.62%), 20(38.46%) were large, medium and small respectively and 5(9.62%), 35(67.31%) and 12(23.08%) were fertile, sterile and calcified respectively. Out 5 of fertile, 20% (1/5) were viable, all from the lung and higher liver calcification were observed.

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