Results 81 to 90 of about 321,984 (308)
Live Animal Ultrasound Information as a Decision Tool in Replacement Beef Heifer Programs [PDF]
Real-time ultrasound information taken on beef heifers prior to backgrounding is used to develop a logit model to aid heifer retention decisions. The value of ultrasound data is calculated as the difference in certainty equivalents between a decision ...
Vann, Rhonda C. +3 more
core +4 more sources
Shiyan dongwu yu bijiao yixueThe organoid co-culture model, as a novel tool for recreating a three-dimensional microenvironment to study cell-cell interactions, has demonstrated significant application potential in biomedical research in recent years.
TAN Dengxu +4 more
doaj +1 more source
Research progress in the treatment of animal diarrhea based on the regulation of intestinal flora
Siliao yanjiu, 2021 Animal diarrhea will lead to the decline of nutrient absorption capacity and reduce production performance, and serious animal death. Antibiotic treatment has problems such as drug resistance and drug residues, and looking for a green, healthy, and ...
Long-zhou ZHANG +4 more
doaj
FEBS Letters, EarlyView.Protein aggregates threaten proteostasis and cell health. In human cells, Hsp70–J‐domain protein‐based disaggregases remove aggregates, but how they assemble remains unclear. Our biochemical findings show that DNAJA2‐ and DNAJB1‐containing disaggregase scaffolds enhance luciferase aggregate targeting, and that Hsp70 recruitment by both J‐domain ...
Anna Szlachcic, Nadinath B. Nillegoda
wiley +1 more source
ECONOMICS OF BEEF COW CULLING AND REPLACEMENT DECISIONS UNDER GENETIC PROGRESS [PDF]
Beef cow managers annually face the question of which animals to cull from the herd and replace. The results of this decision affect not only current revenues, but, by altering the genetic composition of the herd, also affect the future profitability of ...
Melton, Bryan E.
core +1 more source
Comparison of growth curves of three strains of female dairy cattle [PDF]
, 2005 peer-reviewedThe objective of the present study was to compare growth curves for live weight (LW) and body size of three strains of female dairy cattle reared under common environments in Ireland.
Dillon, Pat +2 more
core +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Modeling the Cattle Replacement Decisions [PDF]
In this paper we evaluate the performance of a dynamic model of cattle replacement and culling decisions. We derive the price of cattle when it is treated as a unit of capital and evaluate various rates of adjustment of the cattle herd to determine the ...
Jones, Keithly G., Arnade, Carlos A.
core +1 more source
Risk assessment in animal welfare - EFSA approach [PDF]
, 2008 Replacement of the rabbit Draize skin irritation test or the animal photo-irritation test is in course in Europeunder the REACH chemical strategy and the Cosmetics Directive. Various in vitro protocols, including3D skin models, have been assessed.
Barbieri,S. +11 more
core
Journal of Animal Law, Ethics and One HealthIn the Swiss Animal Welfare Law, paragraph 20 (2) specifically requires the selection of those animal species for experiments that are “lower on the evolutionary scale”.
Kirsten Persson +5 more
doaj +1 more source