Results 111 to 120 of about 1,171,415 (267)

Effects of different feeding strategies for the frozen Antarctic krill meal on growth, muscle nutrition, digestive enzyme activity, immunity, molting, and gut microbiota structure of Cherax quadricarinatus

open access: yesFrontiers in Marine Science
To investigate the effect of the frozen Antarctic krill meal (AKM) as an nutritional supplement in Cherax quadracarinatus culturing, an experiment was designed with the following groups: a control group (C) fed with basic feed throughout the experiment ...
Zhuang Mai   +17 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Effect of Standardized Ginger (Zingiber officinale Roscoe) Extract on Gut Morphology, Microbiota Composition, and Growth Performance in Broiler Chickens

open access: yesAgriculture
With increasing concerns over antibiotic resistance in livestock, there is an urgent need for sustainable alternatives to enhance health and productivity in poultry production. Ginger (Zingiber officinale Roscoe), a phytobiotic recognized for its diverse
Martina Đurić Jarić   +7 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Research progress on application of taurine in aquaculture

open access: yesSiliao yanjiu
Taurine, as a semi-essential amino acid, can enhance the antioxidant and immune capacity of aquatic animals, promote the growth of aquatic animals, and enhance their reproductive performance.
LI Shu-yi   +3 more
doaj  

Nutritional status and compensatory growth in yak calves maintained on different plane of nutrition

open access: yesIndian Journal of Animal Sciences, 2023
D MEDHI   +3 more
doaj   +1 more source

Effects of Soybean Meal Fermented by Lactobacillus plantarum NX69 on Growth Performance and Intestinal Health of Nursery Pigs

open access: yesFermentation
The Intestinal system of nursery pigs is not fully matured and is easily disturbed by dietary composition and nutritional content. Probiotic-fermented feed has emerged as a beneficial dietary form for nursery pigs and is widely utilized in the livestock ...
Mengshi Zhao   +5 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

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