scholarly journals Ancestral Haplotype Mapping for GWAS and Detection of Signatures of Selection in Admixed Dairy Cattle of Kenya

2020 ◽  
Vol 11 ◽  
Author(s):  
Hassan Aliloo ◽  
Raphael Mrode ◽  
A. M. Okeyo ◽  
John P. Gibson
Keyword(s):  
Dairy Cattle ◽  
Ancestral Haplotype ◽  
Signatures Of Selection ◽  
Haplotype Mapping

scholarly journals Signatures of Selection in Admixed Dairy Cattle in Tanzania

2018 ◽  
Vol 9 ◽  
Author(s):  
Evans Kiptoo Cheruiyot ◽  
Rawlynce Cheruiyot Bett ◽  
Joshua Oluoch Amimo ◽  
Yi Zhang ◽  
Raphael Mrode ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Signatures Of Selection

scholarly journals Linkage disequilibrium and signatures of selection on chromosomes 19 and 29 in beef and dairy cattle

2008 ◽  
Vol 39 (6) ◽  
pp. 597-605 ◽  
Author(s):  
A. Prasad ◽  
R. D. Schnabel ◽  
S. D. McKay ◽  
B. Murdoch ◽  
P. Stothard ◽  
...  
Keyword(s):  
Linkage Disequilibrium ◽  
Dairy Cattle ◽  
Signatures Of Selection

Effects of Retinoic Acid and 1,25-Dihydroxyvitamin D3 on IFN-gamma Secretion by Mononuclear Leukocytes from Nulliparous and Postparturient Dairy Cattle

2000 ◽  
Vol 70 (3) ◽  
pp. 92-101 ◽  
Author(s):  
Burim Ametaj ◽  
Brian Nonnecke ◽  
Ronald Horst ◽  
Donald Beitz
Keyword(s):  
Retinoic Acid ◽  
Dairy Cattle ◽  
Dairy Cows ◽  
Dairy Cow ◽  
Pokeweed Mitogen ◽  
Mononuclear Leukocytes ◽  
Combined Effects ◽  
Ifn Gamma ◽  
Dihydroxyvitamin D ◽  
1,25 Dihydroxyvitamin D

Individual and combined effects of several isomers of retinoic acid (RA) and 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) on interferon-gamma (IFN-gamma) secretion by blood mononuclear leukocytes (MNL) from nulliparous and postparturient Holstein cattle were evaluated in vitro. In the first experiment, effects on incubation period (24 to 72 hours) and time of supplementation (0 to 32 hours) with all-trans, 9-cis, 13-cis-, and 9,13-dicis-RAs (0 to 100 nM) on IFN-gamma secretion by pokeweed mitogen (PWM)-stimulated (0 and 10 mug/ml) MNL from nulliparous cattle were evaluated. In the second experiment, MNL from postparturient cows (bled at 0, 2, 4, and 16 days postpartum) were stimulated with PWM (0 and 10 mug/ml) in the presence of RA isomers (9-cis- or 9,13-dicis-RA; 0 to 100 nM), 1,25-(OH)2D3 (0 to 100 nM), or with combinations of these metabolites. The results show that individual isomers of RA had no effect on IFN-gamma secretion by PWM-stimulated MNL from nulliparous or postparturient cows. Furthermore 1,25-dihydroxyvitamin D3 inhibited IFN-gamma secretion by MNL from nulliparous and postparturient dairy cows; however, the degree of inhibition was greater when 9-cis- and 9,13-dicis-RA were also present in the cultures. Finally mononuclear leukocytes from postparturient dairy cows produced substantially less IFN-gamma than did MNL from nulliparous cattle. It is concluded that retinoic acids individually did not affect the capacity of leukocytes from dairy cattle to secrete IFN-gamma. This result is in marked contrast to studies in monogastric species indicating that RAs inhibit IFN-gamma secretion by peripheral blood T cells. Inhibition of IFN-gamma secretion by 1,25-(OH)2D3 was potentiated by 9-cis- and 9,13-di-cis-retinoics acids, suggesting that an excess of dietary vitamins A and D may compromise further the naturally immunosuppressed postparturient dairy cow. Additional research is necessary to determine if the combined effects of these metabolites on IFN-gamma secretion represent an increased susceptibility of the dairy cow to infectious diseases during the periparturient period. Lower secretion of IFN-gamma by MNL from postpartutient dairy cows, relative to nulliparous cattle, suggests that recently-calved cows are naturally immunosuppressed.

Aloe vera for disinfection of teats in dairy cattle

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
F Correia Shimamoto ◽  
P Falbo ◽  
L Sussumu Matsumoto ◽  
M Alves da Silva ◽  
RM Gonçalves da Silva ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Aloe Vera

Haplotype Diversity and Reconstruction of Ancestral Haplotype Associated with the c.35delG Mutation in the GJB2 (Cx26) Gene among the Volgo-Ural Populations of Russia

Acta Naturae ◽  
2011 ◽  
Vol 3 (3) ◽  
pp. 52-63 ◽  
Author(s):  
L U Dzhemileva ◽  
O L Posukh ◽  
N A Barashkov ◽  
S A Fedorova ◽  
F M Teryutin ◽  
...  
Keyword(s):  
Haplotype Diversity ◽  
Ancestral Haplotype ◽  
35Delg Mutation
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