Estimation and Economic Implications of Lone Star Tick (Acari: Ixodidae) Infestation on Weight Gain of Cattle, Bos taurus and Bos taurus × Bos indicus

1987 ◽  
Vol 80 (2) ◽  
pp. 443-445 ◽  
Author(s):  
Terry R. Ervin ◽  
Francis M. Epplin ◽  
Ronnie L. Byford ◽  
Jakie A. Hair
Keyword(s):  
Weight Gain ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Economic Implications ◽  
Lone Star Tick

Food intake and live-weight gain comparisons of Bos indicus and Bos taurus steers on a high plane of nutrition

1968 ◽  
Vol 10 (4) ◽  
pp. 373-380 ◽  
Author(s):  
A. Rogerson ◽  
H. P. Ledger ◽  
G. H. Freeman
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Dry Matter ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Live Weight ◽  
Indigenous Cattle ◽  
Live Weight Gain ◽  
Maintenance Requirements ◽  
Maturity Degree

1. The voluntary dry-matter and water intakes of indigenous and exotic cattle on high plane rations have been compared under similar conditions of management.2. At similar live weights, exotic cattle have a much higher feed intake relative to maintenance than indigenous cattle.3. Water intake was closely related to dry-matter intake, irrespective of live weight, and varied only very slightly between the two types of cattle.4. Exotic cattle were more than twice as efficient as indigenous cattle in converting feed into live-weight gain. It is suggested that this is largely a reflection of the increased feed intake, relative to maintenance requirements.5. Stage of maturity, degree of fatness and their relation to conversion efficiency are discussed.

scholarly journals 98 Comparing the effectiveness of anabolic implants in Santa Gertrudis sired steers versus Angus steers

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 80-80
Author(s):  
Caleb C Reichhardt ◽  
Tevan J Brady ◽  
Reganne K Briggs ◽  
Laura A Smith ◽  
Brett Bowman ◽  
...  
Keyword(s):  
Weight Gain ◽  
Factorial Design ◽  
Blood Urea Nitrogen ◽  
Repeated Measures ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Preliminary Evidence ◽  
Treatment Interaction ◽  
Main Effects ◽  
Anabolic Implants

Abstract This research compared the use of implants in Bos indicus influenced animals versus Bos taurus in a feedlot setting. Twenty steers were blocked by weight and breed in a 2 x 2 factorial design examining two different breeds: Angus (AN; n = 10) or Santa Gertrudis influenced (SGI; n = 10), and two implant strategies: no implant (CON; n = 10) or a combined implant (CI; n = 10). Steers were randomly placed into pens equipped with GrowSafe® bunks, fed the same ration, and weighed and ultrasounded on days 0, 28, 56, 84, and 112. Blood was collected on days 0, 2, 10, 28, 56, 84, and 112. Backfat measurements (BF), weights, and blood urea nitrogen (BUN) were determined. Data were analyzed using repeated measures and the ProcMixed procedure of SAS, looking at the main effects of breed, implant, and breed*implant. There were no initial differences (P > 0.05) in weight between any of the main effects. The main effects of breed, implant, and breed*implant demonstrate that AN gained more (P < 0.05) weight than SGI, CI gained more (P < 0.05) weight than CON, and the AN that received a CI had increased weight gain when compared to the AN CON, SGI CON and SGI CI. There was no difference (P > 0.05) in weight gain between the SGI that received a CI vs CON, nor was there a difference (P > 0.05) between the CON SGI and AN. There was a treatment*breed interaction for BF (P < 0.05), with AN tending to put on more BF than SGI CON (P < 0.08). A breed*treatment interaction was also observed when analyzing BUN (P < 0.05). This research provides preliminary evidence suggesting that anabolic implants are not as effective in Bos indicus influenced animals when compared to Bos taurus animals.

scholarly journals Comparative study of biotin supplementation on weight gain and occurrence of digital diseases in cattle (Bos taurus x Bos indicus)

2018 ◽  
Vol 25 (1) ◽  
pp. 6-12
Author(s):  
Luiz Antônio Franco Silva ◽  
Emmanoel Arnhold ◽  
Rogério Elias Rabelo ◽  
Sabrina Lucas Ribeiro Freitas ◽  
Brenda Lee Silva Buso ◽  
...  
Keyword(s):  
Weight Gain ◽  
Comparative Study ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Biotin Supplementation

scholarly journals Genome-wide identification of cyclin-dependent kinase (CDK) genes affecting adipocyte differentiation in cattle

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Cuili Pan ◽  
Zhaoxiong Lei ◽  
Shuzhe Wang ◽  
Xingping Wang ◽  
Dawei Wei ◽  
...  
Keyword(s):  
Gene Family ◽  
Expression Analysis ◽  
Adipocyte Differentiation ◽  
Bos Taurus ◽  
Adipogenic Differentiation ◽  
Critical Role ◽  
Bos Indicus ◽  
Specific Expression ◽  
Genome Wide ◽  
A Genome

Abstract Background Cyclin-dependent kinases (CDKs) are protein kinases regulating important cellular processes such as cell cycle and transcription. Many CDK genes also play a critical role during adipogenic differentiation, but the role of CDK gene family in regulating bovine adipocyte differentiation has not been studied. Therefore, the present study aims to characterize the CDK gene family in bovine and study their expression pattern during adipocyte differentiation. Results We performed a genome-wide analysis and identified a number of CDK genes in several bovine species. The CDK genes were classified into 8 subfamilies through phylogenetic analysis. We found that 25 bovine CDK genes were distributed in 16 different chromosomes. Collinearity analysis revealed that the CDK gene family in Bos taurus is homologous with Bos indicus, Hybrid-Bos taurus, Hybrid Bos indicus, Bos grunniens and Bubalus bubalis. Several CDK genes had higher expression levels in preadipocytes than in differentiated adipocytes, as shown by RNA-seq analysis and qPCR, suggesting a role in the growth of emerging lipid droplets. Conclusion In this research, 185 CDK genes were identified and grouped into eight distinct clades in Bovidae, showing extensively homology. Global expression analysis of different bovine tissues and specific expression analysis during adipocytes differentiation revealed CDK4, CDK7, CDK8, CDK9 and CDK14 may be involved in bovine adipocyte differentiation. The results provide a basis for further study to determine the roles of CDK gene family in regulating adipocyte differentiation, which is beneficial for beef quality improvement.

Expression of candidate genes for residual feed intake in tropically adapted Bos taurus and Bos indicus bulls under thermoneutral and heat stress environmental conditions

2021 ◽  
pp. 102998
Author(s):  
Bianca Vilela Pires ◽  
Nedenia Bonvino Stafuzza ◽  
Luara Afonso de Freitas ◽  
Maria Eugênia Zerlotti Mercadante ◽  
Ester Silveira Ramos ◽  
...  
Keyword(s):  
Heat Stress ◽  
Candidate Genes ◽  
Feed Intake ◽  
Environmental Conditions ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Residual Feed Intake

scholarly journals Differences in copper and selenium metabolism between Angus (Bos taurus) and Brahman (Bos indicus) cattle

2021 ◽  
Author(s):  
J Ranches ◽  
R Alves ◽  
M Vedovatto ◽  
E Anne Palmer ◽  
P Moriel ◽  
...  
Keyword(s):  
Bos Taurus ◽  
Bos Indicus ◽  
First Trimester ◽  
Beef Cows ◽  
Experimental Unit ◽  
University Of Florida ◽  
Brahman Cattle ◽  
Research And Education ◽  
The University ◽  
Se Status

Abstract A two-year study was conducted at the University of Florida – IFAS, Range Cattle Research and Education Center (Ona, FL) to evaluate differences in the metabolism of Cu and Se of Angus (Bos taurus) and Brahman (Bos indicus) cattle. Thirty-two pregnant beef cows (n = 8 Brahman and 8 Angus/year) were enrolled in the study in the first trimester of gestation. The study consisted of 3 phases: (1) restriction (d 0 to d 90); (2) supplementation (d 91 to 150), and (3) calving. During all 3 phases, cows were individually fed and housed in partially covered drylot pens. During the restriction and supplementation phases cows were provided a 1.5 kg/d of a grain-based concentrate supplement, which was fortified with flowers of S (50 g of supplemental S/cow daily; restriction phase) or Cu and Se (100 and 3 mg/d of Cu and Se, respectively; supplementation phase). Blood and liver samples were collected from all cows on 30 d intervals and from both cows and calves within 24 h of calving. Colostrum and milk samples were collected at calving and 7 d after birth. All data were analyzed using the MIXED procedure of SAS, where cow and calf were the experimental unit. During the restriction phase, a breed × day effect (P = 0.03) was observed where Brahman had greater liver Cu concentration than Angus cows in all sampling days. For liver Se concentration, a tendency (P = 0.07) for a breed effect was observed where Angus cows tended to have greater liver Se concentration than Brahman. During the supplementation phase, breed (P < 0.001) and day (P < 0.01) effects were observed, where Brahman cows had greater liver Cu concentration than Angus. For liver Se concentration, a day effect (P < 0.001) was observed, where liver Se concentration increased (P < 0.001) from d 90 to 120 and remained unchanged (P = 0.86) until d 150. At calving no effects of breed (P = 0.34) were observed for liver Cu concentration of cows, however, Brahman calves tended (P = 0.09) to have greater liver Cu concentration than Angus calves. For Se liver concentration at calving, Angus cows tended (P = 0.07) to have greater liver Se concentration than Brahman cows, however no breed differences (P = 0.70) were observed for liver Se concentration of calves at birth. In summary substantial differences in multiple indicators of Cu and Se status were observed between Angus and Brahman cattle, implying that Angus and Brahman cattle possibly have different mechanisms to maintain adequate Cu and Se status.

Chemical composition of whole body and carcass of Bos indicus and tropically adapted Bos taurus breeds

2011 ◽  
Vol 89 (9) ◽  
pp. 2859-2866 ◽  
Author(s):  
S. F. M. Bonilha ◽  
L. O. Tedeschi ◽  
I. U. Packer ◽  
A. G. Razook ◽  
R. F. Nardon ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Bos Taurus ◽  
Bos Indicus ◽  
Whole Body

scholarly journals Y chromosome variants in cattle Bos taurus and Bos indicus

1982 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
CRE Halnan ◽  
Janine I Watson
Keyword(s):  
Y Chromosome ◽  
Bos Taurus ◽  
Bos Indicus
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