HABITAT QUALITY AND HETEROGENEITY INFLUENCE DISTRIBUTION AND BEHAVIOR IN AFRICAN BUFFALO (SYNCERUS CAFFER)

Ecology ◽  
2008 ◽  
Vol 89 (5) ◽  
pp. 1457-1468 ◽  
Author(s):  
John A. Winnie ◽  
Paul Cross ◽  
Wayne Getz
Keyword(s):  
Habitat Quality ◽  
African Buffalo ◽  
Syncerus Caffer ◽  
And Behavior

scholarly journals Emerging technology to measure habitat quality and behavior of grouse: examples from studies of greater sage-grouse

2017 ◽  
Vol 2017 (SP1) ◽  
Author(s):  
Jennifer Sorensen Forbey ◽  
Gail L. Patricelli ◽  
Donna M. Delparte ◽  
Alan H. Krakauer ◽  
Peter J. Olsoy ◽  
...  
Keyword(s):  
Habitat Quality ◽  
Emerging Technology ◽  
Sage Grouse ◽  
And Behavior

scholarly journals Molecular diagnosis and genetic diversity of tick-borne Anaplasmataceae agents infecting the African buffalo Syncerus caffer from Marromeu Reserve in Mozambique

2016 ◽  
Vol 9 (1) ◽  
Author(s):  
Rosangela Zacarias Machado ◽  
Marta Maria Geraldes Teixeira ◽  
Adriana Carlos Rodrigues ◽  
Marcos Rogério André ◽  
Luiz Ricardo Gonçalves ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Molecular Diagnosis ◽  
African Buffalo ◽  
Syncerus Caffer

scholarly journals 57EMBRYO DEVELOPMENT FOLLOWING INTERSPECIES NUCLEAR TRANSFER OF AFRICAN BUFFALO (SYNCERUS CAFFER), BONTEBOK (DAMALISCUS DORCUS DORCUS) AND ELAND (TAUROTRAGUS ORYX) SOMATIC CELLS INTO BOVINE CYTOPLASTS

2004 ◽  
Vol 16 (2) ◽  
pp. 150 ◽  
Author(s):  
M. Matshikiza ◽  
P. Bartels ◽  
G. Vajta ◽  
F. Olivier ◽  
T. Spies ◽  
...  
Keyword(s):  
South Africa ◽  
Nuclear Transfer ◽  
Somatic Cells ◽  
Blastocyst Stage ◽  
Critically Endangered ◽  
African Buffalo ◽  
Syncerus Caffer ◽  
Cell Stage ◽  
Wildlife Species ◽  
Interspecies Nuclear Transfer

Wildlife conservation requires traditional as well as innovative conservation strategies in order to preserve gene and species diversity. Interspecies nuclear transfer has the potential to conserve genes from critically endangered wildlife species where few or no oocytes are available from the endangered species, and where representative cell lines have been established for the wildlife population while numbers were still abundant. The purpose of this study was to investigate the developmental ability of embryos reconstructed with transfer of somatic cells from the African buffalo (Syncerus caffer), bontebok (Damaliscus dorcus dorcus) and eland (Taurotragus oryx) to enucleated domestic cattle (Bos taurus) oocytes. Skin tissue from the three wildlife species were collected by surgically removing approx. 1.0×1.0cm ear skin notches from animals immobilized with a combination of etorphine hydrochloride (M99; South Africa) and azaperone (Stressnil, South Africa). The biopsies were placed into physiological saline and transported to the laboratory at 4°C within 2h, cleaned with chlorohexidine gluconate and sliced finely in Minimal Essential Medium supplemented with 10% fetal calf serum. The resultant tissue explants were treated as previously described (Baumgarten and Harley 1995 Comp. Biochem. Physiol. 110B, 37–46) and actively growing fibroblast cultures made available for the nuclear transfer process. Nuclear transfer was performed using the HMC technique (Vajta et al., 2003 Biol. Reprod. 68, 571–578) using slaughterhouse-derived bovine oocytes. Culture was performed in SOFaaci (Vajta et al., 2003 Biol. Reprod. 68, 571–578) medium supplemented with 5% cattle serum using WOWs (Vajta et al., Mol. Reprod. Dev. 50, 185–191). Two identical replicates were made with somatic cells of each species. After successful reconstruction, 57, 42 and 48 nuclear transferred and activated buffalo, bontebok and eland embryos were cultured, respectively. All except for 2 buffalo embryos cleaved; 22 (39%) developed to or over the 8-cell stage, and 2 (3.5%) of them to the blastocyst stage. All but 3 bontebok embryos cleaved, 17 (40%) developed to or over the 8-cell stage, but none of them reached the compacted morula or blastocyst stage. Sixteen (33%) of the eland embryos developed to or over the 8-cell stage with one (2%) reaching the blastocyst stage. In conclusion, buffalo, bontebok and eland embryos developed from reconstruction using their respective somatic cells combined with bovine cytoplasts, however, in vitro developmental ability to the blastocyst stage was limited. Additional basic research that establishes the regulative mechanisms involved with early preimplantation development together with optimising nuclear transfer techniques may have the potential to one day play a role in the conservation of critically endangered wildlife species.

scholarly journals Phylogeny of Theileria buffeli genotypes identified in the South African buffalo (Syncerus caffer) population

2014 ◽  
Vol 204 (3-4) ◽  
pp. 87-95 ◽  
Author(s):  
Mamohale E. Chaisi ◽  
Nicola E. Collins ◽  
Marinda C. Oosthuizen
Keyword(s):  
South African ◽  
African Buffalo ◽  
Syncerus Caffer ◽  
The South

scholarly journals Coccidian oocyst and nematode egg counts of free-ranging African buffalo (Syncerus caffer) in the Kruger National Park, South Africa : research communication

2000 ◽  
Vol 71 (2) ◽  
Author(s):  
B.L. Penzhorn
Keyword(s):  
South Africa ◽  
National Park ◽  
Kruger National Park ◽  
African Buffalo ◽  
Syncerus Caffer ◽  
Research Communication ◽  
Nematode Eggs ◽  
Coccidian Oocyst ◽  
Free Ranging

Faecal specimens collected in the Kruger National Park from 103 African buffaloes (Syncerus caffer) up to 1 year old and 283 buffaloes older than 1 year were examined for the presence of coccidian oocysts and nematode eggs. Most specimens from animals older than 1 year had negative coccidian oocyst counts. Positive specimens from younger animals had significantly higher coccidian oocyst counts than those from older animals. No such difference was found for nematode egg counts.

African buffalo Syncerus caffer (Sparrman, 1779)

2014 ◽  
pp. 326-372 ◽  
Author(s):  
Daniel Cornélis ◽  
Mario Melletti ◽  
Lisa Korte ◽  
Sadie J. Ryan ◽  
Marzia Mirabile ◽  
...  
Keyword(s):  
African Buffalo ◽  
Syncerus Caffer

248 IN VITRO PRODUCTION OF CATTLE × BUFFALO HYBRID EMBRYOS USING BOVINE OOCYTES AND AFRICAN BUFFALO (SYNCERUS CAFFER CAFFER) EPIDIDYMAL SPERM

2007 ◽  
Vol 19 (1) ◽  
pp. 240
Author(s):  
O. D. Owiny ◽  
D. M. Barry ◽  
M. Agaba ◽  
R. A. Godke
Keyword(s):  
Bison Bison ◽  
Abnormal Development ◽  
African Buffalo ◽  
Syncerus Caffer ◽  
Epididymal Sperm ◽  
In Vitro Production ◽  
Cleavage Rate ◽  
Cell Stage ◽  
Bovine Oocytes

Interspecies hybridization of bovids occurs between domestic cattle and at least 3 other species: the American bison (Bison bison), yak (Bos grunniens), and banteng (Bos banteng). Birth of a cattle � buffalo hybrid was reported in Russia, but the report was never authenticated. Such hybrids could be important in improving livestock production and managing diseases that impede production in tropical Africa. We investigated hybridization between cattle and their closest African wild relative, the African buffalo (Syncerus caffer caffer). In an attempt to produce pre-implantation cattle � buffalo hybrid embryos in vitro, matured bovine oocytes were subjected to a standard IVF procedure with either homologous (n = 1166 oocytes) or heterologous (n = 1202 oocytes) buffalo epididymal sperm. After IVF, 67.2% of the oocytes inseminated with homologous sperm cleaved. In contrast, insemination with buffalo sperm resulted in a 4.6% cleavage rate. Cleavage was also slower in hybrids than in cattle embryos. Up to 52.2% of cleaved homologous embryos progressed to the morula stage compared with 12.7% for hybrids. No hybrid embryos developed beyond the 16-cell stage, whereas 40.1% of the cleaved bovine embryos developed to the blastocyst stage. Developmental anomalies such as polyspermy, uneven cleavage, vacuolization, and absence of nuclei in some blastomeres were common in the hybrid embryos. We conclude that interspecies fertilization of cattle oocytes with African buffalo sperm occurs in vitro and that the barrier to hybridization is in the early stages of embryonic development. Also, chromosomal disparity is the likely cause of fertilization abnormalities, abnormal development, and subsequent arrest, impairing the formation of pre-implantation hybrid embryos. Investigation into developmental abnormalities, including reciprocal hybridization and genetic studies of the hybrid embryos, are recommended.

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