Effect of coumatetralyl on rat abundance and reduction in crop damage in rice field /
ABSTRACT The effect of coumatetralyl, a first generation anticoagulant rodenticide in controlling rats was investigated in a rice-field area at Selinsing, Kelantan. Two plots were established; one baited with coumatetralyl and other serve as rodenticide free plot. Three baiting campaign were carried...
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| Materyal Türü: | Tez Kitap |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
2015.
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| Etiketler: |
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| 090 | |a FP 2015 12 | ||
| 100 | 0 | |a Muhammad Hariz Ashaari. | |
| 245 | 1 | |a Effect of coumatetralyl on rat abundance and reduction in crop damage in rice field / |c by Muhammad Hariz Ashaari. | |
| 260 | |c 2015. | ||
| 300 | |a 43 leaves : |b ill., (some col.) ; |c 30cm. | ||
| 336 | |2 rdacontent |a text | ||
| 337 | |2 rdamedia |a unmediated | ||
| 338 | |2 rdacarrier |a volume | ||
| 502 | |a Project paper (B.Agric.Sc.) - Universiti Putra Malaysia, 2015. | ||
| 520 | |a ABSTRACT The effect of coumatetralyl, a first generation anticoagulant rodenticide in controlling rats was investigated in a rice-field area at Selinsing, Kelantan. Two plots were established; one baited with coumatetralyl and other serve as rodenticide free plot. Three baiting campaign were carried out; the first baiting was conducted ten days before transplanting; the second, three weeks after transplanting and the third six weeks after the tillering stage. The effects were evaluated based on two parameters, i.e. rat damage assessment and rat abundance. Damage was estimated by counting the proportion of cut tillers at tillering, booting and maturing stage. Rat abundance was indirectly compared by the amount of bait taken in both treatments. Rat damage and abundance were calculated and significance between means was established by unpaired t-test. Rodent activity measured at prebaiting and on two occasions post baiting. Coumatetralyl significantly reduce rat number by up to 61% based on the acceptance on plain bait measurement. This indicates an approximate reduction of rat population density presumably due to mortality after consumption of coumatetralyl baits. Incidence of rat damage in both control and coumatetralyl plot was less than 5% at all rice plant growth stage. There was significance different between the treatment and control plot for all stages of rice crop combined (p<0.05). Damage recorded showed a marked increase from 2% to 4.26% for control and 0.24% to 0.88% for treatment plot at the booting and ripening stage respectively. The mean percentage rat damage level for three growth stages in coumatetralyl baited and control plot were 0.65% and 3.49% respectively, being significant different (p<0.05). Mean damage at coumatetralyl baited plot remained less than 1% throughout. This indicated that coumatetralyl was effective in suppressing rat number and thereby reduced crop damage at all stages of rice growth. | ||
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