Considering the number of animals moved, Santo Domingo is the province that concentrates 38.28% as origin and 36.77% as destination; followed by Cotopaxi with 8.58% as origin and 8.20% as destination; and El Oro with 8.19% as origin and 5.55% as destination (Fig. 9) (SI 5).
3.5.2 Movements to abattoirs.
Local abattoir was the most frequent movement depicted in Fig. 10, with a frequency of annual movements greater than 500 within the same parishes; these movements are represented as red arrowheads without vectors. Inter-parish movements were more frequent in the southwestern provinces (bordering Peru) of Loja (16.45%) and El Oro (12.65%) and in the central province of Chimborazo (7.59%) in 2019 (Fig. 10). Considering the frequency of annual movements, 89.52% were between 1–100 movements (green arrows), 7.6% were between 101–500 (blue arrows), and 2% >500 (red arrows) (Fig. 10). Movements to abattoirs originated 63.15% from farms, 15.36% from industrials, 13.06% from markets, and 8.41% from traders. The largest senders of movements to abattoirs were the southwestern provinces of Loja (12.71%) and El Oro (12.07%) (SI 6). The provinces with the highest number of animals transported to abattoirs were Santo Domingo, with 29.81% as the origin and 36.77% as the destination; Cotopaxi, with 8.58% as the origin and 8.20% as the destination; and El Oro, with 8.19% as the origin and 5.55% as the destination (Fig. 10) (SI 7).
Figure 10. Spatial representation of the frequencies of pig movements to abattoirs in Ecuador between 2017 and 2019 (province boundaries on map).