Results 31 to 40 of about 605 (165)

Fungal Antagonism Assessment of Predatory Species and Producers Metabolites and Their Effectiveness on Haemonchus contortus Infective Larvae

BioMed Research International, Volume 2015, Issue 1, 2015., 2015
The objective of this study was to assess antagonism of nematophagous fungi and species producers metabolites and their effectiveness on Haemonchus contortus infective larvae (L3). Assay A assesses the synergistic, additive, or antagonistic effect on the production of spores of fungal isolates of the species Duddingtonia flagrans, Clonostachys rosea ...
Manoel Eduardo Silva, Fabio Ribeiro Braga, Pedro Mendoza de Gives, Jair Millán-Orozco, Miguel Angel Mercado Uriostegui, Liliana Aguilar Marcelino, Filippe Elias de Freitas Soares, Andréia Luiza Araújo, Thainá Souza Vargas, Anderson Rocha Aguiar, Thiago Senna, Maria Gorete Rodrigues, Frederico Vieira Froes, Jackson Victor de Araújo, Giuseppe Piccione   +14 more
wiley   +1 more source

The Relationship between Selenium and T3 in Selenium Supplemented and Nonsupplemented Ewes and Their Lambs

Veterinary Medicine International, Volume 2014, Issue 1, 2014., 2014
Twenty pregnant ewes were selected and classified into two groups. The first group received subcutaneous selenium supplementation (0.1 mg of sodium selenite/kg BW) at the 8th and 5th weeks before birth and 1st week after birth while the other was control group without selenium injection.
Abd Elghany Hefnawy, Seham Youssef, P. Villalobos Aguilera, C. Valverde Rodríguez, J. L. Tórtora Pérez, Philip H. Kass   +5 more
wiley   +1 more source

Integración de Enterolobium cyclocarpum Jacq. con la producción ovina en los trópicos secos

AIA Avances en Investigación Agropecuaria, 2021
Los frutos de Enterolobium cyclocarpum, son una fuente de energía y proteína (Serratos et al., 2008) para diversas especies animales. Los rumiantes los consumen tal como caen de los árboles, o cuando son molidos, lo cual facilita su aprovechamiento ...
Eduardo Briceño-Poot, Ángel Trinidad Piñeiro-Vázquez, Armín Ayala-Burgos, Juan Carlos Ku-Vera   +3 more
doaj   +1 more source

Immune Responses Associated with Resistance to Haemonchosis in Sheep

BioMed Research International, Volume 2013, Issue 1, 2013., 2013
This paper examines the known immunological and genetic factors associated with sheep resistance to infection by Haemonchus contortus. Such resistance is an inheritable genetic trait (h2, 0.22–0.63) associated with certain sheep breeds. Resistant sheep do not completely reject the disease; they only harbor fewer parasites than susceptible sheep and ...
Fernando Alba-Hurtado, Marco Antonio Muñoz-Guzmán, Luis I. Terrazas   +2 more
wiley   +1 more source

Effects of Summer Heat Stress on Physiological Parameters and Reproductive Efficiency of Barbarine Ewes Under Natural Outdoor or Indoor Conditions

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 7, Page 686-697, August 2026.
ABSTRACT Climate change and rising ambient temperatures increasingly challenge sheep production systems in arid and semi‐arid regions, particularly during the summer breeding season. This study evaluated the effects of heat stress and direct solar exposure on physiological responses, metabolic profile, and reproductive performance of Barbarine ewes, a ...
Samia Khnissi, Dorra Aouadi, Hela Chalouati, Mourad Rekik, Imène Ben Salem   +4 more
wiley   +1 more source

First Report of Anthelmintic Resistance in Gastrointestinal Nematodes of Sheep from Costa Rica

Veterinary Medicine International, Volume 2011, Issue 1, 2011., 2011
As the prevalence and severity of anthelmintic resistance continue to rise, nematode infections in sheep correspondingly reduce the profitability of the sheep industry. In Costa Rica, sheep production systems are increasing in both number and importance.
R. Maroto, A. E. Jiménez, J. J. Romero, V. Alvarez, J. B. De Oliveira, J. Hernández, David W. Horohov   +6 more
wiley   +1 more source

Desarrollo del eje reproductivo endocrino en corderos de pelo

Revista Mexicana de Ciencias Pecuarias, 2016
Los objetivos fueron caracterizar los perfiles de LH y testosterona (T) y la respuesta a GnRH en corderos de pelo. Estudio 1: se utilizaron corderos Blackbelly (n=4), Pelibuey (n=5), Blackbelly x Pelibuey (Cruzas; n=8).
Luis Javier Montiel Olguín, Héctor Raymundo Vera Ávila, Eugenio Villagómez Amezcua, Vicente Castañeda Rodríguez, Mario Cárdenas León, Héctor Jiménez Severiano   +5 more
doaj   +1 more source

Factors associated with the reproductive performance of ewes inseminated laparoscopically in England and Wales: A longitudinal study

Veterinary Record, Volume 199, Issue 1, Page e21-e29, 4/11 July 2026.
Abstract Background Laparoscopic intrauterine artificial insemination (Lap‐AI) is used in sheep genetic improvement programmes. However, the lambing rate (LR) (i.e., the proportion of inseminated ewes that lamb) following Lap‐AI is variable. Previously, one small UK study investigated factors associated with LR, but it did not adjust for dependencies ...
Mike J. Glover, Laura E. Green, Rachel Clifton   +2 more
wiley   +1 more source

Effect of Diet Neutral Detergent Fibre Content on Dry Matter Intake, Nutrient Digestibility, Growth Efficiency and Carcass Characteristics of Finishing South African Mutton Merino Wether Lambs

Veterinary Medicine and Science, Volume 12, Issue 2, March 2026.
Feeding South African Mutton Merino lambs low‐NDF lucerne hay diets improved nutrient digestibility, energy utilisation, growth efficiency, and carcass quality. Despite lower intake at the lowest NDF level, fibre digestibility and feed conversion improved, indicating that highly digestible, low‐NDF finishing diets enhance lamb growth and carcass traits.
Inalene De Klerk, Abraham Vlok Ferreira, Michael Denis Fair, Arnold Hugo, Ockert Bernard Einkamerer   +4 more
wiley   +1 more source

Relationship between body weight and scrotal circumference in growing Pelibuey sheep raised under tropical conditions

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2023
The body weight (BW) of an animal is a vital economic trait that might help in decision-making in the handling of animals. The objective of the present study was to develop equations for the prediction of BW in Pelibuey sheep using scrotal circumference (
M.A. Ramírez-Bautista, A.A. Cruz-Tamayo, M.Á. Gastélum-Delgado, J.A. Aguilar-Quiñónez, T.L. Tyasi, A.L.C. Gurgel, R.A. García-Herrera, A. J. Chay-Canul   +7 more
doaj   +1 more source