Annual Report - Rodent Research Center |
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Page 42
... adult males / 100 adult females is 112 . In addition to sex and age composition , live - trapping also provided information on rat movements . In Table 24 , 186 movement records have been totaled . Disregarding the time element , adult ...
... adult males / 100 adult females is 112 . In addition to sex and age composition , live - trapping also provided information on rat movements . In Table 24 , 186 movement records have been totaled . Disregarding the time element , adult ...
Page 64
... adult females revealed considerable seasonal variation . In the rainfed fields the number of adult males was low at the beginning of the year and again in October and November ( Table 14 ) . In irrigated rice the number of males was low ...
... adult females revealed considerable seasonal variation . In the rainfed fields the number of adult males was low at the beginning of the year and again in October and November ( Table 14 ) . In irrigated rice the number of males was low ...
Page 78
... adult : male - Adult : male mammae not visible , vagina imperforate , small size medium to adult size , testes abdominal or not well developed , no active sperm present , epididymal tubules not visible female medium to adult size ...
... adult : male - Adult : male mammae not visible , vagina imperforate , small size medium to adult size , testes abdominal or not well developed , no active sperm present , epididymal tubules not visible female medium to adult size ...
Contents
RESEARCH ACTIVITIES | 7 |
METHODS 22 | 22 |
E POPULATION AND MOVEMENT STUDIES | 33 |
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acute toxicants adult animals anticoagulant anticoagulant bait averaged bait acceptance bait consumption bait stations baiting points barrios Bulacan Bureau of Plant burrows Calauan Central Luzon chronic toxicants coconut College of Agriculture conducted control methods Cotabato coumatetralyl cut by rats cut tillers Denver Wildlife Research determine Development dikes dry season evaluation exulans farmers feeding females field grid growing rice habitats harvest hectare indicated laboratory Laguna Laguna Province live-traps nights Nueva Ecija number of rats observations paddy dikes Pangasinan Philippines Plant Industry polished rice provinces randomly selected rat activity rat control rat damage rat population Rattus argentiventer Rattus rattus mindanensis reduced Results and Discussion rice crop ricefield rats Rodent Research Center rodenticides sample Siniloan snap-traps species Sumangil sustained baiting Table Tarlac technicians tests tillers cut tracking tiles trap success trials untreated USAID warfarin weeks after transplanting wet season Wildlife Research Center zinc phosphide