Data representing moving objects is rapidly getting more available, especially in the area of wildlife GPS tracking. It is a central belief that information is hidden in large data sets in the form of interesting patterns, where a pattern can be any configuration of some moving objects in a certain area and/or during a certain time period. One of the most common spatio-temporal patterns sought ...

The impact of maternal flock age and incubation on embryo metabolism was studied to understand late incubation overheating and mortality in Ross 308 embryos. Fresh broiler hatching eggs (n = 45) were obtained from commercial breeder flocks at 3 ages: Young (Y): 25 to 34 wk, Peak (P): 35 to 45 wk, Old (O): 46 to 54 wk of age), stored for 2 to 4 d at 18°C and 73% RH, then incubated for 14 d at 37...

Within the multi-disciplinary CARMA (Campylobacter Risk Management and Assessment) project it was decided to focus on evaluation of interventions in the chicken meat chain. To assess the effect of control measures on the farm we developed a model on Campylobacter transmission in Dutch broilers and broiler flocks, resulting in an estimate of the Campylobacter prevalence in broilers for slaughter...

heat stress and exhaustion is one of the top causes of chicken death. for those new to backyard chicken farming, it is important you learn to recognize the signs of this serious condition and how to keep your chickens cool and hydrated. chicks, especially, need extra attention to help them remain healthy. for a flock of laying hens, knowing how to prevent heat exhaustion and treat a chicken suf...

We present particle-based simulations and a continuum theory for steady rotating flocks formed by self-propelling particles (SPPs) in two-dimensional space. Our models include realistic but simple rules for the self-propelling, drag, and interparticle interactions. Among other coherent structures, in particle-based simulations we find steady rotating flocks when the velocity of the particles la...

Granulocytic Ehrlichia infection in sheep is common in Norway in areas with Ixodes ricinus. In this study, 2 sheep flocks that had been grazing on I. ricinus infested pastures the previous season, were blood sampled after being housed indoors for nearly 6 months during wintertime. Thirty animals from each flock were examined for granulocytic Ehrlichia infection in the peripheral blood by blood ...

Flock Fibers In article number 2100766 by Jingwei Xie and co-workers, a new technique for electrostatic flocking is used to create anisotropic structures surfaces regenerative medicine applications. Using this method, electrospun nanofiber mats, 3D-printed meshes, tubes are surface-coated with flock fibers. Such materials evaluated in vitro vivo show promise as tissue engineering scaffolds.

The purpose of this study was to apply the analytic hierarchy process (AHP) to assist decision-making when planning animal health programmes, by assigning priorities to issues of concern to producers in Chile's main goat production region. This process allows a multi-criteria approach to problems, by analysing and ranking them in a hierarchical structure. Industry experts have highlighted the f...

The implementation of biosecurity measures as the first line defense is an essential prerequisite for preventing occurrence and spread infectious agents in flocks. Assessment on farms was carried out during farm visits based application appropriate questionnaire whereby farmer answered a number questions regarding implemented measures. study performed via Biocheck.UGent online survey 16 broiler...

We extend some of the theory of flocks of a finite quadratic cone to the infinite case and give some examples. One of the results we prove is that a generalized quadrangle is coming from a flock if and only if all derivations of the flock are well defined.