Evidence map›Paper›PMID 38980548›Full record

ArticleTropical animal health and production2024

Comparative assessment of growth curves in Brazilian white Morada Nova hair sheep breed.

Marcos Aurelio Victor de Assunção, José Ernandes Rufino de Sousa, Robson Mateus Freitas Silveira, Concepta McManus, Daniel Caetano Sales, Bianca Ferreira do Nascimento, Natanael Silva Felix, Débora Andréa Evangelista Façanha

Abstract readComparative Study
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Article in Tropical animal health and production, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Marcos Aurelio Victor de AssunçãoDepartment of Animal Science, Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró, RN, 59625-900, Brazil.
José Ernandes Rufino de SousaDepartment of Animal Science, Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró, RN, 59625-900, Brazil.
Robson Mateus Freitas SilveiraDepartament of Animal Science, "Luiz de Queiroz" College of Agriculture (ESALQ), University of São Paulo (USP), Av. Pádua Dias, 11, Piracicaba, São Paulo, 13.418-900, Brazil. robsonmateusfs1994@gmail.com.ORCID http://orcid.org/0000-0003-2285-9695
Concepta McManusCenter for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo, 13416-389, Brazil.
Daniel Caetano SalesDepartment of Animal Science, Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró, RN, 59625-900, Brazil.
Bianca Ferreira do NascimentoDepartment of Animal Science, Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró, RN, 59625-900, Brazil.
Natanael Silva FelixDepartment of Animal Science, Federal Rural University of the Semi-Arid Region (UFERSA), Mossoró, RN, 59625-900, Brazil.
Débora Andréa Evangelista FaçanhaIntegration of Afro-Brazilian Lusophony (UNILAB), University of International, Redenção, CE, 62790-790, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Morada Nova sheep breed is essential for the economy of the semi-arid region of Northeast Brazil, standing out for its adaptability, resistance to parasites and reproductive ability. However, the white variant is endangered, highlighting the importance of studies on its productivity to support conservation efforts. This study focuses on the growth curve of the Morada Nova sheep breed, using nonlinear models and analyzing flock profiles. Total of 764 observations of 165 animals from four farms in Ceará and Rio Grande do Norte, Brazil, were analyzed. Canonical discriminant analysis (CDA) was used for the exploratory analysis and four nonlinear models were used to study the growth curve. Weight from birth to 270 days of age, absolute growth rate (AGR), and the impact of sex on growth curves were assessed. Sex and farm are significant discriminating variables (P < 0.05) for the studied effects (weight and age). Weight was the primary phenotypic biomarker that discriminated between the two indicators, while age was a discriminating indicator only for the core effect. The Gompertz model was the most efficient, presenting the lowest residuals and greatest convergence. The study reveals new information about the growth of Morada Nova sheep, the white variety, including weight differences between the sexes at all analyzed ages and an inflection point before 90 days of age. These discoveries contribute to the understanding of the breed's growth and help in the formulation of conservation strategies.

Indexed as

Sheep, DomesticAnimalsBody WeightBrazilBreedingFemaleMaleSheepCanonicalConservationGompertz modelSemiaridSheep

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.