[t,y]=meshgrid(0.1:.1:2);
dt = ones(20);
dy = (-y)./(t+1);
quiver(t,y,dt,dy,1);

hold on;

for i=0:.4:2
    initial = i;
    time = [0.1,2];
    [T,Y] = ode45(@ode,time,initial);
    plot(T,Y,'LineWidth',2,'Color',[1 0 0]);
end