Results 61 to 70 of about 202,210 (324)

Effect of level of infection by gastrointestinal nematodes and anthelmintic treatment on milk yield in dairy sheep

open access: yesParasite, 2021
The effects of gastrointestinal nematode infections and anthelmintic treatment on milk yields was compared between flocks with a low level (LL) of eggs per gram (epg) before partum and with a high level (HL).
Martínez-Valladares María   +4 more
doaj   +1 more source

Organic Centre Wales Technical Note 1: Controlling ectoparasites on Welsh organic sheep farms [PDF]

open access: yes, 2005
At present there is little information on current practices for ectoparasite control in Welsh organic sheep flocks. In order to rectify this lack of information a survey was carried out to investigate current practices for ectoparasite control on Welsh ...
Anon
core  

Criticality and the Onset of Ordering in the Standard Vicsek Model [PDF]

open access: yes, 2012
Experimental observations of animal collective behavior have shown stunning evidence for the emergence of large-scale cooperative phenomena resembling phase transitions in physical systems.
Albano, Ezequiel V.   +2 more
core   +2 more sources

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

Comparison of performance, health and welfare aspects between commercially housed hatchery-hatched and on-farm hatched broiler flocks

open access: yesAnimal, 2019
On-farm hatching systems for broiler chicks are increasingly used in practice. We studied whether or not performance, health and welfare aspects differed between commercial flocks hatched on-farm or in a hatchery (control).
I.C. de Jong   +6 more
doaj   +1 more source

Short-range interaction vs long-range correlation in bird flocks

open access: yes, 2015
Bird flocks are a paradigmatic example of collective motion. One of the prominent experimental traits discovered about flocks is the presence of long range velocity correlations between individuals, which allow them to influence each other over the large
Cavagna, Andrea   +6 more
core   +1 more source

Naming and recognition of six foot lesions of sheep using written and pictorial information: a study of 809 English sheep farmers [PDF]

open access: yes, 2008
In 2005, 3000 questionnaires were sent to a random sample of English sheep farmers from a list kept by the English Beef and Lamb Executive (EBLEX) to investigate whether farmers could correctly name six common foot lesions in sheep from a characteristic ...
Green, Laura E., Kaler, Jasmeet
core   +2 more sources

Risk factors for occurrence of cephalosporin-resistant Escherichia coli in Norwegian broiler flocks.

open access: yesPreventive Veterinary Medicine, 2016
A longitudinal study of 27 broiler farms including 182 broiler flocks was performed to determine risk factors for occurrence of cephalosporin-resistant Escherichia coli in Norwegian broiler flocks.
S. S. Mo   +4 more
semanticscholar   +1 more source

Molecular Methods for Rare Hemoglobinopathy Cases: First Brazilian Report of Pediatric Siblings with Hb O‐Arab and Alpha‐Thalassemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hemoglobinopathies are prevalent globally; diagnosis is complex in high genetic admixture populations like Brazil. We report, in two pediatric siblings, the first documented cases in Brazil of heterozygosity for hemoglobin (Hb) O‐Arab with coinheritance of α‐thalassemia (αα/−α4.2; −α3.7/−α4.2), resulting in microcytic and hypochromic anemia ...
Elisângela de Souza Miranda Muynarsk   +9 more
wiley   +1 more source

Flocking ferromagnetic colloids [PDF]

open access: yesScience Advances, 2017
Energized by a vertical alternating magnetic field, colloidal particles roll and flock together.
Kaiser, Andreas   +2 more
openaire   +2 more sources

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