1
|
Ferreira BFS, Barros ML, Ferreira F, Rocha A, Dias RA, Filho JHHG, Heinemann MB, Telles EO, Alevate GC, Neto JSF. Economic analysis of bovine brucellosis control in the Rondônia state, Brazil. Trop Anim Health Prod 2023; 55:225. [PMID: 37225948 DOI: 10.1007/s11250-023-03635-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023]
Abstract
Bovine brucellosis, mainly caused by Brucella abortus, is a worldwide distribution anthropozoonosis that causes great economic losses. In 2001, Brazil launched the National Program for the Control and Eradication of Brucellosis and Tuberculosis (PNCEBT). Contemporaneously, a great effort to characterize the epidemiology of the disease in Brazilian states was started. In the state of Rondônia, a first epidemiological study was carried out in 2004, revealing a prevalence of 35.2% of infected herds and 6.22% of seropositive females. In 2014, after a successful heifer vaccination program with strain 19 (S19), a second study detected a reduction in the prevalence of infected herds to 12.3% and of seropositive females to 1.9%. The present study aimed to quantify and compare the costs and benefits related to the control of bovine brucellosis in the state through an accounting analysis. Vaccinating heifers and performing serological tests to move animals were computed as private costs. The expenditures of the state official veterinary service for brucellosis control were considered public cost. The considered benefits of lowering prevalence were decreased cow replacement, decreased abortions, decreased perinatal and cow mortality, and increased milk production. Considering private and public costs, the net present value (NPV) was estimated at US$ 18.3 million, the internal rate of return (IRR) was calculated at 23%, and the benefit-cost ratio (BCR) was 1.7. When considering only the private costs, the NPV was US$34.9 million, the IRR was 49%, and the BCR was 3.0, meaning that the bovine producer had a return of 3 for each unit of currency invested. The results showed that the bovine brucellosis control measures implemented in the state of Rondônia, which had as its main strategy the vaccination of heifers with S19, produced highly advantageous economic results. The state should continue with its vaccination program, stimulating the use of the RB51 vaccine in addition to S19, to achieve further reductions in prevalence at low cost.
Collapse
Affiliation(s)
- Bruno Fontana Soares Ferreira
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - Marcelo Luís Barros
- Institute of Sanitary Defense of Livestock and Agriculture of the state of Mato Grosso, rua Desembargador Carlos Avalone, s/n, Centro Político Administrativo, CEP, Cuiabá, MT, 78049-903, Brazil
| | - Fernando Ferreira
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - Adelmar Rocha
- Agency of Sanitary Defense of Livestock, Agriculture and Forestry of the state of Rondônia, av. Farquar, 2986, Palácio Rio Madeira, 5° andar, CEP, Porto Velho, RO, 76801-470, Brazil
| | - Ricardo Augusto Dias
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - José Henrique Hildebrand Grisi Filho
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - Marcos Bryan Heinemann
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - Evelise Oliveira Telles
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - Guilherme Camargo Alevate
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil
| | - José Soares Ferreira Neto
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, av. Prof. Dr. Orlando Marques de Paiva, 87, CEP, São Paulo, SP, 05508-000, Brazil.
| |
Collapse
|