Resistance of ewes to gastrointestinal nematode infections during the peripartum and dry periods and the performance of their lambs

Autor:	Raquel Abdallah da Rocha, Lidiane Fonseca, Maria Marta Loddi, Adriana de Souza Martins, Jennifer Mayara Gasparina
Rok vydání:	2019
Předmět:	Infection level sheep Pregnancy Nível de infecção Prevalence ovinos Biology medicine.disease Blood proteins Animal science Blood plasma medicine worms Weaning Helminths Animal Science and Zoology Texel verminose Feces
Zdroj:	Revista Brasileira de Saúde e Produção Animal v.20 2019 Revista Brasileira de Saúde e Produção Animal Universidade Federal da Bahia (UFBA) instacron:UFBA Revista Brasileira de Saúde e Produção Animal, Volume: 20, Article number: e028019, Published: 12 AUG 2019
ISSN:	1519-9940
DOI:	10.1590/s1519-9940200282019
Popis:	This study aimed to evaluate the resistance of Texel (Tx) and Ile de France (IF) sheep to gastrointestinal nematode infections in the periparturient period and after weaning, and the performance of their lambs. Fecal samples were collected from 19 IF and 17 Texel ewes to determine fecal egg counts (FEC) and larval cultures were prepared to determine the prevalence of nematodes. The ewes were weighed to determine body weight (BW) and blood samples were taken to determine the packed cell volume (PCV) and plasm protein values (PPV). The ewes were classified into two groups by FEC (heavy and moderate infection). The IF presented higher FECs than Tx 28 and 14 days before parturition; 14, 28, and 56 days after parturition; and 28 days after weaning (P0.05). The IF presented a higher BW than Tx 14, 28, and 42 days after parturition, and in the weaning and dry periods (P0,05). As IF apresentaram PV superior aos das Tx nos dias 14, 28 e 42 após o parto, na desmama e no período seco (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7409511ded4833801aee00f4d282747e https://doi.org/10.1590/s1519-9940200282019 Zobrazit plný text záznamu