Morphological and morphometrical description of the adrenal gland of crossbred cattle in different feedlot densities

• Grant number: 14/10317-4
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2014
• End date: July 31, 2015
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Animal Clinics and Surgery
• Principal Investigator: Fabrício Singaretti de Oliveira
• Grantee: Barbara Cristina da Costa
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil

Abstract

The Brazil presents one of the greatest cattle herd in the word, about 20 million animals. In the country, the intensive system, or feedlot, is used in the final phase only, for a 90-day time. In spite of the short feedlot instance, animals might be under stress, and this may cause damages to the welfare and to the carcasses and meat quality. This study aims to establish a morphological and morphometric pattern of the crossbred cattle's adrenal gland that underwent different feedlot densities and check if those animals may go through alterations in the cortical and medullar layers of the adrenal gland, which is responsible for the hormone production related to stress. Adrenals will be fixed in Bouin solution and longitudinally sectioned. By using a software and digitizer tablet, measurements will be taken in the gland's longitudinal and median transversal axes, besides the cortical and medullar areas. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FABRÍCIO S. OLIVEIRA; FERNANDA MACITELLI; CAIO C.C. SANTOS; JANAINA S. BRAGA; BARBARA C. COSTA; MARINA PASTORE; THIAGO A.S.S. ROCHA; MATEUS J.R.P. DA COSTA. Combination of fixative agents and fixation times to visually differentiate the cortical from the medullary layer in bovine adrenal glands. Anais da Academia Brasileira de Ciências, v. 90, n. 4, p. 3887-3891, 2018-12-00. (14/10317-4, 15/06353-8, 14/10251-3)