Morada Nova newborns: care after birth, evaluation of levels of infection by gastrointestinal nematodes and its impact on weight gain

• Grant number: 17/24289-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2018
• End date: March 31, 2019
• Field of knowledge: Agronomical Sciences - Veterinary Medicine - Preventive Veterinary Medicine
• Principal Investigator: Ana Carolina de Souza Chagas
• Grantee: Luciana Aparecida Giraldelo
• Host Institution: Embrapa Pecuária Sudeste. Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Ministério da Agricultura, Pecuária e Abastecimento (Brasil). São Carlos , SP, Brazil

Abstract

The sheep production in Brazil still does not supply the domestic market with efficiency and quality. There is no constant supply, which hinders the structuring of the sector, including the formation of slaughtering scales. Hair breeds, such as Santa Inês and Morada Nova, are more resistant to worms, which is an extremely important feature due to the impact of this disease in sheep production. This demonstrates the permanent need for studies directed to hosts resistant to parasites, in order to promote future availability of animals with desirable characteristics. The Morada Nova breed also presents hardiness, prolificacy, excellent leather quality, sexual precocity, maternal ability, lack of reproductive seasonality and excellent adaptation to tropical climate, besides larger number of lambs produced per hectare. In the first year of the FAPESP Project 2017/01626-1 it was observed that the phase from the birth until the weaning, decisively impacts on the characteristics of infection and production of the animal, until its slaughter. Therefore, the present proposal aims to monitor around 150 Morada Nova lambs in relation to postpartum care until weaning, as well as to evaluate the infection by gastrointestinal nematodes and its impact on the animals' weight gain (second year of the project). Thus, we will study the susceptibility characteristics of lambs to endoparasites and its effects on characteristics of performance (mean of daily weight gain and total gain), as well as blood parameters, from weaning (3 months) to 9 months of age. (AU)

Scientific publications

(6)

(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)

HAEHLING, MAREI B.; TOSCANO, JOAO HENRIQUE B.; GIRALDELO, LUCIANA A.; SANTOS, ISABELLA B.; ESTEVES, SERGIO N.; BENAVIDES, V, MAGDA; THOLON, PATRICIA; CHAGAS, ANA CAROLINA. S.. Is selection for resistance and resilience to Haemonchus contortus possible in Morada Nova sheep?. Small Ruminant Research, v. 201, AUG 2021. (17/00373-2, 17/01626-1, 17/24289-0)

BARBOSA TOSCANO, JOAO HENRIQUE; OKINO, CINTIA HIROMI; BARBOSA DOS SANTOS, ISABELLA; GIRALDELO, LUCIANA APARECIDA; BORSCH VON HAEHLING, MAREI; NOVITA ESTEVES, SERGIO; BASSETTO, CESAR CRISTIANO; TALAMINI DO AMARANTE, ALESSANDRO FRANCISCO; DE SOUZA CHAGAS, ANA CAROLINA. Local and systemic immune mediators of Morada Nova lambs with divergentHaemonchus contortusresistance phenotypes. PARASITE IMMUNOLOGY, v. 42, n. 12, DEC 2020. (17/01626-1, 17/24289-0, 17/00373-2)

BARBOSA TOSCANO, JOAO HENRIQUE; OKINO, CINTIA HIROMI; DOS SANTOS, ISABELLA BARBOSA; GIRALDELO, LUCIANA APARECIDA; VON HAEHLING, MAREI BORSCH; ESTEVES, SERGIO NOVITA; DE SOUZA CHAGAS, ANA CAROLINA. Innate Immune Responses Associated with Resistance against Haemonchus contortus in Morada Nova Sheep. JOURNAL OF IMMUNOLOGY RESEARCH, v. 2019, NOV 11 2019. (17/24289-0, 17/01626-1, 17/00373-2)

BARBOSA TOSCANO, JOAO HENRIQUE; LOPES, LOUYSE GABRIELLI; GIRALDELO, LUCIANA APARECIDA; DA SILVA, MATHEUS HENRIQUE; OKINO, CINTIA HIROMI; DE SOUZA CHAGAS, ANA CAROLINA. Identification of appropriate reference genes for local immune-related studies in Morada Nova sheep infected with Haemonchus contortus. MOLECULAR BIOLOGY REPORTS, v. 45, n. 5, p. 1253-1262, OCT 2018. (17/00373-2, 17/24289-0, 17/01626-1)

HAEHLING, MAREI B.; CRUVINEL, GIOVANNA G.; TOSCANO, JOAO H. B.; GIRALDELO, LUCIANA A.; SANTOS, ISABELLA B.; ESTEVES, SERGIO N.; BENAVIDES, V, MAGDA; BARIONI JUNIOR, WALDOMIRO; NICIURA, SIMONE C. M.; CHAGAS, ANA CAROLINA S.. Four single nucleotide polymorphisms (SNPs) are associated with resistance and resilience to Haemonchus contortus in Brazilian Morada Nova sheep. Veterinary Parasitology, v. 279, MAR 2020. (17/24289-0, 17/01626-1, 17/00373-2)

BARBOSA TOSCANO, JOAO HENRIQUE; DOS SANTOS, ISABELLA BARBOSA; VON HAEHLING, MAREI BORSCH; GIRALDELO, LUCIANA APARECIDA; LOPES, LOUYSE GABRIELLI; DA SILVA, MATHEUS HENRIQUE; FIGUEIREDO, AMANDA; ESTEVES, SERGIO NOVITA; DE SOUZA CHAGAS, ANA CAROLINA. Morada Nova sheep breed: Resistant or resilient to Haemonchus contortus infection?. Veterinary Parasitology, v. 276, p. 9-pg., 2019-01-01. (17/00373-2, 17/24289-0, 17/01626-1)