Change Over and Switchback for Experimentation on Large Animals

Fagton de Mattos Negrão *

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

Emerson Silva Miranda

Universidade Federal de Mato Grosso, Campus Cuiabá, Cuiabá, Mato Grosso, Brazil.

Luciano da Silva Cabral

Universidade Federal de Mato Grosso, Campus Cuiabá, Cuiabá, Mato Grosso, Brazil.

Alan Andrade Mesquita

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

Amanda Rodrigues da Fonseca

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

Ellen Cristina Silva Marques

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

Mateus Ferreira Lucas

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

Luan Rafael Assunção dos Santos

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

Tayane Barbosa Pereira

Instituto Federal de Rondônia - Campus Colorado do Oeste, Colorado do Oeste, Rondônia, Brazil.

*Author to whom correspondence should be addressed.


Abstract

Among the most common designs, the very randomized design, in randomized blocks and in Latin squares, stands out, however, approaches to alternative designs are not as common in basic books that cover experimental statistics, especially in the approach that was given in this article. The study of Change Over and Switchback designs is a separate chapter within statistics. For experimentation on large animals, alternative tests are widely used, that is, obtaining a sequence of treatments that can make the final cost of this operation viable. There are two types of experimental tests: rotational (Changeover) and reversal (Switchback). The objective of this work was to present the Changeover and Switchback designs.

Keywords: Rotational experiments, experiments, ruminants


How to Cite

Negrão, Fagton de Mattos, Emerson Silva Miranda, Luciano da Silva Cabral, Alan Andrade Mesquita, Amanda Rodrigues da Fonseca, Ellen Cristina Silva Marques, Mateus Ferreira Lucas, Luan Rafael Assunção dos Santos, and Tayane Barbosa Pereira. 2024. “Change Over and Switchback for Experimentation on Large Animals”. Annual Research & Review in Biology 39 (6):57-64. https://doi.org/10.9734/arrb/2024/v39i62088.

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