Results 31 to 40 of about 245,965 (316)

MEMAHAMI EKSISTENSI MANUSIA MELALUI MEDIA KOMUNIKASI

open access: yesJurnal Kawistara, 2018
Manusia sebagai makhluk hidup yang diberikan keunikan tersendiri oleh Tuhan Yang Maha Esa di alam semesta ini karena mampu menciptakan sebuah simbol yang bernama komunikasi dalam berinteraksi bersama dengan sesamanya atau makhluk hidup lainnya ...
Luthfy Avian Ananda
doaj   +1 more source

Dietary fat supplements influence weight gain and egg production, but not offspring sex ratios in Japanese quail, Coturnix coturnix japonica

open access: yesJournal of Avian Biology, 2023
Sex ratio theory suggests that females should bias offspring sex ratios based on maternal condition and the availability of critical food resources. Work in birds indicates that females do, indeed, bias sex ratios according to maternal condition and food
James Curry   +3 more
doaj   +1 more source

Bacterial composition of a competitive exclusion product and its correlation with product efficacy at reducing Salmonella in poultry

open access: yesFrontiers in Physiology, 2023
The mature intestinal microbiome is a formidable barrier to pathogen colonization. Day-old chicks seeded with cecal contents of adult hens are resistant to colonization with Salmonella, the basis of competitive exclusion.
Margie D. Lee   +4 more
doaj   +1 more source

Delayed post-hatch feeding affects the performance and immunocompetence differently in male and female broiler chickens

open access: yesJournal of Applied Animal Research, 2018
The effect of post-hatch (PH) feed deprival for 6, 12, 24 and 36 h was studied in male and female broiler chickens. At 21 d, lower body weight (BW) was recorded in 36 h feed-deprived (FD) birds; however, at 42 d PH, only 36 h FD female birds had lower BW
A. S. Shinde Tamboli   +7 more
doaj   +1 more source

Study of the underlying mechanisms and consequences of pathogenicity differences between two in vitro selected G1-H9N2 clones originating from a single isolate

open access: yesVeterinary Research, 2019
The G1-H9N2 avian influenza virus (AIV) has caused significant economic losses in the commercial poultry industry due to reduced egg production and increased mortality.
Giang Thu Nguyen   +6 more
doaj   +1 more source

Effects of Dark Brooder Rearing and Age on Hypothalamic Vasotocin and Feather Corticosterone Levels in Laying Hens

open access: yesFrontiers in Veterinary Science, 2020
Chickens cannot independently thermoregulate at hatch and lack opportunity to behaviorally thermoregulate with a hen in the egg layer industry, thus barns are heated to thermoneutral temperatures.
Rebecca E. Nordquist   +4 more
doaj   +1 more source

Telomere length declines with age, but relates to immune function independent of age in a wild passerine

open access: yesRoyal Society Open Science, 2022
Telomere length (TL) shortens with age but telomere dynamics can relate to fitness components independent of age. Immune function often relates to such fitness components and can also interact with telomeres.
Michael J. Roast   +6 more
doaj   +1 more source

Infections with Avian Pathogenic and Fecal Escherichia coli Strains Display Similar Lung Histopathology and Macrophage Apoptosis [PDF]

open access: yes, 2012
The purpose of this study was to compare histopathological changes in the lungs of chickens infected with avian pathogenic (APEC) and avian fecal (Afecal) Escherichia coli strains, and to analyze how the interaction of the bacteria with avian ...
Glodde, Susanne   +28 more
core   +1 more source

Avian amyloidosis [PDF]

open access: yesAvian Pathology, 1998
Although amyloid deposits have been described for more than a century and a half, its proteinaceous and fibrillar nature was not revealed until after 1950. Biochemical characterization of amyloids has brought to light that several non-related proteins can re-organize into amyloid fibrils. In some domestic and caged wild birds, and especially waterfowl,
Landman, W.J.M.   +2 more
openaire   +3 more sources

Mortality associated with avian reovirus infection in a free-living magpie (Pica pica) in Great Britain [PDF]

open access: yes, 2015
Avian reoviruses (ARVs) cause a range of disease presentations in domestic, captive and free-living bird species. ARVs have been reported as a cause of significant disease and mortality in free-living corvid species in North America and continental ...
Pocknell, A   +19 more
core   +1 more source

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