Results 61 to 70 of about 419,234 (300)

Application of open field, tonic immobility, and attention bias tests to hens with different ranging patterns [PDF]

open access: yesPeerJ, 2019
Assessment of negative affective states is a key component of animal welfare research. In laying hens, excessive fearfulness results in reduced production and increased sensitivity to stress.
Dana L.M. Campbell   +2 more
doaj   +2 more sources

Free range chicken farms - odour emissions and nutrient management [PDF]

open access: yes, 2015
This report focuses on odour emissions and nutrient management from free range meat chicken farms. Specifically – odour emissions from the sheds and free range area as well as potential nitrogen and phosphorus loss from the range areas in the soil and in
Brown, Grant, Gallagher, Erin
core  

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Goblet cell hypertrophy in small intestines of free-range chicken in Jakarta traditional market infected with cestode worms

open access: yesCurrent Biomedicine
Background: Free-range chickens are one of the animal protein needs people often look for. Maintaining free-range chickens with a free cage system predisposes them to infection with gastrointestinal parasites.
Monica Silva Jerica   +4 more
doaj   +1 more source

COMPARISON AND RISK ASSESSMENT OF TRACE METAL CONTENT IN FACTORY-FARMED BROILER AND FREE-RANGE CHICKEN MEAT SOLD IN LAGUNA, PHILIPPINES

open access: yesFood and Environment Safety, 2022
Chicken meat consumption remains high in the Philippines, and consequently, annual chicken production has risen steadily over the years. Although most of the chicken meat available in the market are sourced from factory farms, there has been growing ...
Monique T. ESTRELLA   +2 more
doaj  

Low- and High-Pathogenic Avian Influenza H5 and H7 Spread Risk Assessment Within and Between Australian Commercial Chicken Farms

open access: yesFrontiers in Veterinary Science, 2018
This study quantified and compared the probability of avian influenza (AI) spread within and between Australian commercial chicken farms via specified spread pathways using scenario tree mathematical modeling.
Angela Bullanday Scott   +9 more
doaj   +1 more source

Immunomodulatory effects of chicken soups prepared with the native cage-free chickens and the commercial caged broilers

open access: yesPoultry Science, 2022
: The objective of this study was to compare the immunomodulatory effects of the chicken soups prepared with the native free-range chickens and the commercial caged broilers in the immunosuppressive mice.
Zuyue Li   +5 more
doaj   +1 more source

Male chicken thigh meat quality from fast and slow growing breeds from an organic free-range system [PDF]

open access: yes, 2009
Significant effects of Genotype and Age on several of the technological meat quality attributes measured were found. In general, the meat from fast growing birds (JA) was darker, more tender, had a higher water-binding but a higher cooking loss.
Dufek, A., Horsted, K., Karlsson, H.A.
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

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