Maternal-calf relationships and their influence on calves up to 120 days
Journal Title: Revista MVZ Cordoba - Year 2015, Vol 20, Issue 1
Abstract
Objectives. To research parental behavior and measure the weight of Nelore and Guzerat calves up to 120 days of age, collecting data from birth up to the first lactation. Materials and methods. Seven different corporal positions were considered to obtain specific data for each of the following categories: time to stand (TP), time to intend to feed after standing (TPTM), weight at birth (PN), weight at 120 days (P120), and time in contact with the calf (TCC). Additionally, independent variables were also evaluated, organized by class: weight at birth (CPN), number of calvings (CNP), order of calving in relation with the herd (CLPR), time of calving (CHP), and finally, hindering to feed (CTAT). Results. There was a significant result in favor of the Nelore race over the Guzerat race. The statistical averages for Nelore and Guzerat were: Time to stand averaged 71 and 153 minutes; time to intend to feed after standing, 39 minutes for Nelore and of 114 minutes for Guzerat. For variable weight at 120 days, Nelore reached an average of 122 kg, and Guzerat 109 kg. For the time in contact with the calf variable there was no significant variance between races. Conclusions. Results showed the superiority of the Nelore race, considering it better adapted to local environmental conditions.
Authors and Affiliations
Emanoela Souza-Conde AL, M. Sc| Universidade Federal do Recôncavo da Bahia. Centro de Ciencias Agrarias, Ambientales y Biológicas. Rua Rui Barbosa, 710, Centro. Cruz das Almas- BA, Brasil., María V. Andrea, Ph. D *| Universidade Federal do Recôncavo da Bahia. Centro de Ciencias Agrarias, Ambientales y Biológicas. Rua Rui Barbosa, 710, Centro. Cruz das Almas- BA, Brasil.Correspondência: mvander@ufrb.edu.br., Marcy Conde L, Ing Pesca| Universidade Federal do Recôncavo da Bahia. Centro de Ciencias Agrarias, Ambientales y Biológicas. Rua Rui Barbosa, 710, Centro. Cruz das Almas- BA, Brasil., Jesus Delgado-Mendez, Ph. D| Universidade Federal do Recôncavo da Bahia. Centro de Ciencias Agrarias, Ambientales y Biológicas. Rua Rui Barbosa, 710, Centro. Cruz das Almas- BA, Brasil., Fagner C. Souza, Ing Agr| Universidade Federal do Recôncavo da Bahia. Centro de Ciencias Agrarias, Ambientales y Biológicas. Rua Rui Barbosa, 710, Centro. Cruz das Almas- BA, Brasil., Mateus Paranhos da Costa JR, Ph. D| Departamento de Zootecnia, Faculdade de Ciências Agrárias e Veterinárias, UNESP –Via de Acesso Prof.Paulo Donato Castellane s/n. Jaboticabal, SP, Brasil., Thereza CB de Bittencourt dos SC, Ph. D| Universidade Federal da Bahia – UFBA. Escola de Medicina Veterinária. Av. Adhemar de Barros, 500 - Ondina – Salvador-BA, Brasil., Kaliane de Oliveira N, M. Sc| Universidade Federal do Recôncavo da Bahia. Centro de Ciencias Agrarias, Ambientales y Biológicas. Rua Rui Barbosa, 710, Centro. Cruz das Almas- BA, Brasil.
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