Banca de DEFESA: RAISSA CAMILA DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAISSA CAMILA DA SILVA
DATE: 24/07/2024
TIME: 09:00
LOCAL: Departamento de Zootecnia
TITLE:

ETHNOZOOTECHNY OF GOATS AND SHEEP IN PARAIBA STATE, SEMI-ARID REGION: HISTORYLOCAL KNOWLEDGE, BREED DIVERSITY AND LOCAL SELECTION CRITERIA

KEY WORDS:

Genetic diversity, Selection criteria. 

PAGES: 45
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Genética e Melhoramento dos Animais Domésticos
SUMMARY:

This study aimed to document the breeding history of goat and sheep breeds, estimate the diversity index, and understand the selection criteria used by goat and sheep breeders in four territories of the semi-arid region of Paraíba. The goal was to gather information for future conservation and genetic improvement programs. This work  involved participatory data collection with all the groups of breeders in the four territories. To compile the history of the breeds, a questionnaire was administered to the oldest breeders in each territory, known as guardians of the breeds. Current and past diversity was evaluated in two workshops, supplemented by the recall technique. The responses were recorded in a spreadsheet for analysis. Descriptive statistics were carried out, and Multiple Correspondence Analysis (MCA) was used to examine the distribution of goats and sheep in the territories over time. The territory named as Coletivo had a greater diversity of breeds in the past than on the current landscape. Significant changes in the distribution of sheep over time were observed. The level of diversity was assessed using the Shannon index, with a value of 1.3 of for goats observed in the Past Landscape (PP), indicating a noticeable reduction in the current landscape (0.87). For local sheep breeds, the values were much lower, with a Shannon index value of 0.7 in the past landscape and 0.66 in the current one. According to the breeders' reports, adaptability, resistance to diseases, fecundity, and conformation were the most important traits considered in the selection ofselecting male and female breeding animals.

COMMITTEE MEMBERS:
Presidente - MARIA NORMA RIBEIRO
Interno - FRANCISCO FERNANDO RAMOS DE CARVALHO
Externo à Instituição - ADERBAL CAVALCANTE NETO - UNIFESSPA