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Articles by I. Suswoyo
Total Records ( 2 ) for I. Suswoyo
  I. Suswoyo , Ismoyowati and I.H. Sulistyawan
  A study has been conducted with purposes to compare behaviour, body and plumage condition of local ducks kept in commercial farms with and without access for swimming and to assess whether the access can help the ducks to reduce heat stress effect. Twenty eight duck farms were used as respondents, each 14 came from wet and dry system. This study involved 13,820 ducks in total. Data collected were duck behaviour i.e. panting, foraging, preening, bathing and swimming. The behaviours were recorded 5 times a day i.e. 6 am, 9 am, 12 am, 3 pm and 6 pm; body condition with scores of 1 (the whole body was clean); 2 (dirt on shank); 3 (dirt on shank and thigh); 4 (dirt on shank, thigh and chest); 5 (dirt on shank, thigh, chest and wings); 6 (dirt on the whole body); body temperature. Fifteen ducks from each farms were measured their body condition and rectal temperature; farm condition. Hen day production was used to calculate egg production. Data obtained analyzed using description technique analysis and student t test. The results indicated that wet system provided better condition for the ducks although egg production between the two systems were not significantly different.
  I. Suswoyo and Rosidi
  An experiment has been conducted with the purposes to examine the effect of two kinds of probiotic on welfare and egg production of local ducks kept in commercial farms. The study was conducted in collaboration with ‘Berkah Abadi’ duck farmer group which keeps the bird under an intensive dry system. The intensive system refers to the ordinary way done by farmers in which ducks are confined to the farmer’s village with a closed fence so the ducks have no access to the outside area and the amount of feed provided could be controlled and measured. The location was in the coastal area of Tegal city as one of the most famous duck centers in Indonesia. The materials used were 15.2±1.0 months old local laying ducks which were reared by the farmer group. The study used Completely Randomized Design with probiotic and its level as the treatments. Probiotics consisted of homemade probiotic and commercial probiotic while the level comprised 0 doses (as control), 1 dose (1 ml/liter), 2 doses (2 ml/liter) and 3 doses (3 ml/liter). There were 7 treatment units which were replicated 3 times, so in total, there were 21 flocks. Each flock had 150 female ducks and one male; therefore, this study involved 3.171 ducks. Probiotics were applied each morning, mixed thoroughly in duck ration. It can be concluded that the administration of 3 ml/liter of homemade probiotic significantly increased duck welfare, egg production and egg weight; whereas the same dose of commercial probiotic significantly increased duck egg production and egg weight, but did not improve duck welfare.
 
 
 
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