Fig. 1.
Fig. 2.
Fig. 3.
Prevalence of the main genera of gastrointestinal parasites in cattle from the municipalities of Salto de Agua, Chiapas, and Teapa, Tabasco, Mexico_
| Date | Trichostrongylids¥ | Strongyloides | Trichuris | Dictyocaulus | Toxocara | Coccidia | |
|---|---|---|---|---|---|---|---|
| Farm 1 DNA | May-22 | 66.7 | 73.3 | - | 6.7 | - | - |
| Salto de Agua, Chis. | June-22 | 52.9 | 88.2 | 11.8 | 17.7 | - | 17.7 |
| August-22 | 51.4 | - | - | - | - | - | |
| September-22 | 81.8 | - | 10.0 | - | - | - | |
| Farm 2 DRG | May-22 | 76.7 | 26.7 | 6.5 | 3.2 | 6.5 | 25.8 |
| Salto de Agua, Chis. | June-22 | 16.0 | - | 3.9 | - | 23.1 | 3.9 |
| August-22 | 36.8 | 2.6 | 2.6 | - | - | - | |
| Farm 3 GCh | May-22 | 92.9 | 57.4 | - | - | - | - |
| Teapa, Tab. | June-22 | 35.7 | 71.4 | - | - | - | 14.3 |
| Farm 4 DNT | June-23ψ | 33.3 | 7.4 | 4.0 | 4.0 | - | 36.0 |
| Salto de Agua, Chis. | July-23 | 44.4 | 22.2 | - | 4.0 | 4.0 | 12.0 |
| August-23 | 29.6 | 14.8 | - | 4.0 | - | 4.0 | |
| September-23 | 57.4 | 20.4 | - | - | - | - | |
| October-23θ | 63.0 | 3.7 | 4.0 | - | 4.0 | - | |
| November-23 | 63.0 | - | - | - | - | - | |
| December-23 | 70.4 | 3.7 | - | - | - | 54.0 |
Severity of Fasciola hepatica and paramphistomid infection in cattle in the municipality of Salto de Agua, Chiapas_
| Fasciola hepatica | Paramphistomid | ||||||
|---|---|---|---|---|---|---|---|
| N | Mean | SE | Rank | Mean | SE | Rank | |
| Farm DNA | 96 | 3.9a | 1.2 | 0 – 88 | 3.3a | 1.0 | 0 – 60 |
| Farm DRG | 78 | 0.3b | 0.1 | 0 – 4 | 1.0b | 0.2 | 0 – 8 |
| Sampling-May | 46 | 3.5a | 2.0 | 0 – 88 | 2.2a | 1.2 | 0 – 52 |
| Sampling-June | 43 | 5.0ab | 1.6 | 0 – 44 | 1.1a | 0.8 | 0 – 32 |
| Sampling-August | 85 | 0.3b | 0.1 | 0 – 4 | 2.8a | 0.8 | 0 – 60 |
| Females | 66 | 2.2a | 0.9 | 0 – 44 | 2.1a | 0.6 | 0 – 32 |
| Males | 51 | 4.4a | 2.0 | 0 – 88 | 1.4a | 1.0 | 0 – 52 |
Average fecal nematode egg count by treatment and sex of calves_
| Treatment | Sex | EPG* | Strongyloides |
|---|---|---|---|
| Deworming | Female | 193 | 376 |
| Male | 814 | 722 | |
| No deworming | Female | 316 | 246 |
| Male | 278 | 84 |
Severity of infection by trichostrongylids and Strongyloides spp_ in pre-weaning calves in the municipality of Salto de Agua_
| Farms | Month | N | Trichostrongylids¥ | Strongyloides | ||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | |||
| Farm 1 DNA | May | 31 | 216 | 240 | 71 | 210 |
| June | 26 | 29 | 87 | 2 | 10 | |
| August | 39 | 46 | 94 | 0 | 0 | |
| Farm 2 DRG | May | 15 | 353 | 616 | 16,877 | 54,504 |
| June | 17 | 100 | 129 | 959 | 1566 | |
| August | 46 | 92 | 122 | 0 | 0 | |
Prevalence of trematodes (Fasciola hepatica and paramphistomids) in cattle in southeastern Mexico in the samplings carried out during 2022 and 2023_
| Farm and sampling date | Physiological stage | Fasciola hepatica | Paramphistomids | |
|---|---|---|---|---|
| Farm 1 DNA | May-22 | Lactating cows | 25.8 % (8/31) | 22.6 % (7/31) |
| Salto de Agua, Chiapas | June-22 | Lactating cows | 50.0 % (13/26) | 15.4 % (4/26) |
| August-22 | Lactating cows | 0.0 % (0/39) | 41.0 % (16/39) | |
| Farm 2 DRG | May-22 | Calves | 0.0 % (0/17) | 70.6 % (12/17) |
| Salto de Agua Chiapas | June-22 | Calves | 0.0 % (0/17) | 0.0 % (0/17) |
| August-22 | Lactating cows | 20.0 % (7/35) | 48.6 % (17/35) | |
| September-22 | Lactating cows | 0.0 % (0/11) | 0.0 % (0/11) | |
| Farm 4 DNT | August-23 | Calves | 4.2 % (1/24) | 0.0 % (0/24) |
| Salto de Agua, Chiapas | September-23 | Calves | 4.0 % (2/50) | 0.0 % (0/50) |
| October-23 | Calves | 9.8 % (4/41) | 7.3 % (3/41) | |
| November-23 | Calves | 0.0 % (0/25) | 4.0 % (1/25) | |
| December-23 | Calves | 4.2 % (1/24) | 0.0 % (0/24) | |
| Farm 5 Rita | July-23 | Lactating cows | 28.6 % (4/14) | 28.6 % (4/14) |
| Farm 6 Frank | August-23 | Lactating cows | 3.4 % (1/29) | 0.0 % (0/29) |
| Farm 7 JSalv | September-23 | Lactating cows | 0.0 % (0/51) | 2.0 % (1/51) |
| Farm 8 PNR2 | October-23 | Lactating cows | 10.3 % (7/68) | 13.2 % (9/68) |
| Farm 9 RNat | November-23 | Lactating cows | 40.6 % (13/32) | 56.3 % (18/32) |
| Farm 10 RNat2 | November-23 | Lactating cows | 26.7 % (12/45) | 35.6 % (16/45) |
| Farm 11 R1CM | November-23 | Lactating cows | 10.0 % (3/30) | 33.3 % (10/30) |
| Farm 12 R2CM | November-23 | Lactating cows | 3.2 % (1/31) | 41.9 % (13/31) |
| Total | 12 % (77/640) | 20.5 % (131/640) | ||