Relationship between body and testicular measurements in young buffalo bulls in Cuba

Yanara Almaguer; Harold Font; Suitberto Cabrera; Yaritza Arias

doi:10.17533/udea.rccp.v30n2a05

Authors

Yanara Almaguer University of Granma
Harold Font University of Granma
Suitberto Cabrera Polytechnic University of Valencia
Yaritza Arias Research Center for Animal Improvement of Tropical Livestock

DOI:

https://doi.org/10.17533/udea.rccp.v30n2a05

Keywords:

body weight, modeling, nonlinear regression, scrotal circumference, thoracic perimeter

Abstract

Background: appropriate selection of sires holds great importance in plans to genetically improve and raise buffalos. Objective: to obtain a statistical model that provides accurate associations between body and testicular measurements intended for selection of Bufalypso breed sires. Methods: measurements of body weight (BW), thoracic perimeter (TP), and scrotal circumference (SC) from 649 buffalos aged 2 to 36 months, were used to obtain the models corresponding to the associations between these traits. The statistical significance of the model and the model’s parameters were evaluated using a one-way analysis of variance. The best-fit model was established by calculating determination coefficients (R²) and mean squared error (SE). Results: the most adequate regression model between thoracic perimeter and body weight was TP = 19.89*BW0.37, with 99% and 0.03 for R² and, SE, respectively. The best association between scrotal circumference and body weight was obtained with the model SC = 1.13*BW0.51, with values of 89% for R²and of 0.1 for SE. The model that best expressed the relationship between scrotal circumference and thoracic perimeter was SC = 0.02*TP0.89, with R² = 89% and SE = 0.01. Conclusion: nonlinear models described better the association between body and testicular measurements than the linear ones. These results suggest that nonlinear models are effective for selecting buffalo sires.

Keywords: , .

Resumen

Palabras clave: circunferencia escrotal, modelación, perímetro torácico, peso corporal, regresión no lineal.

Resumo

Palavras chave: circunferência escrotal, modelagem, perímetro torácico, peso corporal, regressão nãolinear.

|Abstract

= 257 veces | PDF

= 165 veces|

Downloads

Download data is not yet available.

Author Biographies

Yanara Almaguer, University of Granma

VM., Faculty of Veterinary Medicine, University of Granma, Cuba.

Harold Font, University of Granma

VM., MSc., Faculty of Veterinary Medicine, University of Granma, Cuba.

Suitberto Cabrera, Polytechnic University of Valencia

Eng., PhD., Department of Statistics and Applied Operation Research and Quality, Polytechnic University of Valencia, Spain

Yaritza Arias, Research Center for Animal Improvement of Tropical Livestock

VM, MSc., Research Center for Animal Improvement of Tropical Livestock, Cuba.

References

Ahmad E, Ahmad N, Naseer Z, Aleem M, Khan MS, Ashiq M, Younis M. Relationship of age to body weight, scrotal circumference, testicular ultrasonograms, and semen quality in Sahiwal bulls. Trop Anim Health Prod 2011; 43:159-164.

Arias MY, Ramos F, Brito S, Varelo C, Montes I, Font PH. Indicadores del desarrollo corporal y testicular en machos Buffalypso a los 24 meses de edad en Cuba. Cienc Tecnol Ganad 2009; 3:81-84.

Arrighi S, Bosi G, Groppetti D, Cremonesi F. Morpho- and Histometric Evaluations on the testis and epididymis in buffalo bulls during the different reproductive seasons.To Anat J 2010; 2:29-33.

Bongso TA, Hassan MD, Nordin W. Relationship of scrotal circumference and testicular volume to age and body weight in the swamp buffalo (Bubalus bubalis). Theriogenology 1984; 22:127-134.

Cardoso da Luz PA, Santos PR, Andrighetto C, Jorge AM, Assis Neto AC. The correlation between age, body weight and testicular parameters in Murrah buffalo bulls raised in Brazil. J Reprod Dev 2013; 59:14-17.

Crudeli G, Pochon D, Olazarri M, Monzón N, Chaparro L, Flores S, Patiño E, Cedrés J. Morphometric evaluation of male Mediterranean buffaloes in Northern. Ital J Anim Sci 2007; 6:1281-1283.

Cruz RV, Andrade I, Días SJ, Neto AI, Nascimento RV. Avaliação da composição corporal de bubalinos e bovinos a través do ultrasom. Cienc Agrotec 2001; 25:1174-1184.

Draper NR, Smith H. Applied regression analysis. 3rd ed. (NY): New York Wiley; 1998.

Fundora O, Torres CV, González ME, Noda A. Curva de crecimiento y peso vivo de un rebaño de búfalos de río. Cuban J Agric Sci 2006; 4:419-424.

Henry M, Brito FM, Loaiza Echeverri AM, De Oliveira SCH, Gibson BAF, Neves PB, Andrade DG, Melo OI, Bastianetto E. Scrotal circumference growth curves of buffalo bulls of different breeds raised in Brazil. Buffalo Bulletin 2013; 32:439-442.

Montes I, Pérez I, Martinto JG. Desarrollo corporal y testicular del búfalo hasta los 11 meses de nacidos en Cuba. Ciencia y Tecnología Ganadera 2007; 1:35-40.

Olegário AR, Righetti MC, Florisbal DM, Del Valle GA, Gunski RJ, Everling DM, Nogara RP. Modelos não-lineares clássicos para descrever a curva de crescimento de búfalos da raça Murrah. Cienc Rural 2012; 42:520-525.

ONEI. Oficina Nacional de Estadística e Información, Cuba. Sector Agropecuario. Indicadores seleccionados (Enero–Diciembre 2012). [Access date: June 5th, 2013]. URL:http://www.one.cu/publicaciones/05agropecuario/ppalesindsectoragrop/ppales_indmar13.pdf

Ortiz RJ. Modelación y simulación del reciclaje de N, P y K en sistemas de pastoreo vacuno. Tesis en opción al grado científico de doctor en ciencias agrícolas. Universidad Agraria de La Habana Fructuoso Rodríguez 2000: 94-99.

Ramos AA, DeSouza JC, Malhado CH, Jorge AM, Filho PB, De Freitas JA, Bacon RR, Lamberson WR. Evaluation of water beef buffalo from birth to two years using different growth curves. Ital J Anim Sci 2007; 6:318-320.

Singh P, Singh I, Singh K, Singh S, Phulia SK. Relationship of age and body weight with scrotal circumference in Murrah buffalo bulls/males. Indian J Anim Sci 2010; 80:418-21.

SPSS Inc. Statistical Package for the Social Sciences, SPSS for Windows. Version 15.0.1. Chicago IL, USA. 2006.

Vásquez L, Arango J. Relationship between corporal and testicular measurements in peripuberal brahman bulls. Livest Res Rural Dev 2002. [Access date: May 13th, 2013] URL: http://www.lrrd.org/lrrd14/5/vasq145.htm.

Yánez CL, Madrid BN, Contreras DR, Rincón UR. Relaciones de circunferencia escrotal con edad y peso corporal en toros mestizos. Arch Latinoam Prod Anim 1997; 5:479-481.