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Abstract

Data from 2438 calvings born to 682 cows recorded from 2004 to 2015 in an extensive production system were used, to investigate factors associated with abortion and calf mortality until weaning. Cows belonged to Brahman, Nellore, Guzerat and Brown Swiss × Zebu breed groups. Data were analyzed using ...

Author(s)
Segura-Correa, J. C.; Segura-Correa, V. M.; Magaña-Monforte, J. G.; Aké-López, J. R.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2018, 21, 3, pp 439-445
Abstract

The aim of this study was to determine the effect of season of the year and parity number on conception rate of beef cows from three zebu breeds under the tropical conditions of the southeastern of Mexico. Information of 2064 calving to conception intervals (CCI) from 423 cows calving from 2006 to...

Author(s)
Segura Correa, J. C.; Magaña Monforte, J. G.; Ake Lopez, J. R.; Segura Correa, V. M.
Publisher
CIPAV Foundation, Cali, Colombia
Citation
Livestock Research for Rural Development, 2017, 29, 11, pp Article 215
Abstract

Records of beef cows from a ranch in southern Mexico gave 1967 birth weights (BW), 1587 weaning weights adjusted to 210 days of age (AWW) and 2001 calving intervals (CI) for the comparison of the breed groups: Brahman (BR), Guzerat (GU), Nellore (NE) and crosses born to zebu dams by Brown Swiss...

Author(s)
Segura-Correa, J. C.; Magaña-Monforte, J. G.; Aké-López, J. R.; Segura-Correa, V. M.; Hinojosa-Cuellar, J. A.; Osorio-Arce, M. M.
Publisher
Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, Yucatan, Mexico
Citation
Tropical and Subtropical Agroecosystems, 2017, 20, 2, pp 297-305
Abstract

The objective of this study was to compare the results of logistic regressions for correlated data obtained by using three procedures of the Statistical Analysis System package (SAS). Information from a cross sectional study on infectious bovine rhinotracheitis in Yucatan state, Mexico, was used;...

Author(s)
Segura Correa, J. C.; Solis Calderón, J. de J.; Segura Correa, V. M.
Publisher
Facultad de Ciencias Veterinarias, Universidad del Zulia, Maracaibo, Venezuela
Citation
Revista Cientifica, Facultad de Ciencias Veterinarias, Universidad del Zulia, 2006, 16, 3, pp 282-287
Abstract

The objective of the study was to determine the effect of breed group (BG) and age group at first calving (AFC) on the number of calvings during the lifetime of the cows in a production system localised in the state of Yucatan, Mexico. Data included information gathered from 65 cows of the Brahman...

Author(s)
Segura-Correa, J. C.; Magaña-Monforte, J. G.; Centurión-Castro, F.; Segura-Correa, V. M.
Publisher
Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
Citation
Archivos de Medicina Veterinaria, 2013, 45, 1, pp 41-44
Abstract

The objective of this study was to estimate the heritabilities of stillbirth and preweaning mortality in a Zebu herd in the tropics of Mexico. The data collected were for cows calving over a 21 years period (1989-2009). The base population was commercial Zebu cattle. The model included the fixed...

Author(s)
Segura-Correa, J. C.; Segura-Correa, V. M.; Centurion-Castro, F.
Publisher
Medwell Online, Faisalabad, Pakistan
Citation
Journal of Animal and Veterinary Advances, 2012, 11, 2, pp 214-217
Abstract

Prenatal mortality is an important cause of production losses in the livestock industry. This study estimates the prevalences of abortion and stillbirth in a beef cattle system and determines the significance of some risk factors, in the tropics of Mexico. Data were obtained from a Zebu cattle herd ...

Author(s)
Segura-Correa, J. C.; Segura-Correa, V. M.
Publisher
Springer, Dordrecht, Netherlands
Citation
Tropical Animal Health and Production, 2009, 41, 8, pp 1773-1778
Abstract

The purpose of this study was to estimate the seroprevalence of H. somni infection and to determine some risk factors associated with the seropositivity in beef cattle in the livestock region of Yucatan, Mexico. Furthermore, the intraherd correlation coefficient (re) and the design effect (D) were...

Author(s)
Solís-Calderón, J. J.; Segura-Correa, J. C.; Aguilar-Romero, F.; Segura-Correa, V. M.
Publisher
Veterinaria Mexico, Revista de la Facultad de Medicina Veterinaria y Zootecnia, Coyoacan, Mexico
Citation
Veterinaria México, 2008, 39, 1, pp 29-38
Abstract

We collected blood samples from 756 ≥2-year-old cattle in 54 herds in Yucatan, Mexico, and used all of those to determine the antibody seroprevalences (in an indirect enzyme-linked inmunosorbance assay) to bovine respiratory syncytial virus (BRSV) and risk factors for animal-level seropositivity....

Author(s)
Solís-Calderón, J. J.; Segura-Correa, J. C.; Aguilar-Romero, F.; Segura-Correa, V. M.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2007, 82, 1/2, pp 102-110
Abstract

The main objective of this cross-sectional study was to estimate the seroprevalence of infectious bovine rhinotracheitis (IBR) in a population of non-vaccinated beef cattle in the livestock region of Yucatan, Mexico and to determine potential risk factors related to the seroprevalence. Also, we...

Author(s)
Solis-Calderon, J. J.; Segura-Correa, V. M.; Segura-Correa, J. C.; Alvarado-Islas, A.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2003, 57, 4, pp 199-208

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