Question: asking that his 6-month old 50 no.s layer bird are becoming lean and thin. 
Answer: tr.: 1. provide layer feed, 2. tetracyclin powder 100 gm pkt. @ 5 gm daily for 5-6 days in the morning, 3. ostovet 1 lit. 500 ml @ 50 ml daily at noon, 4. vimeral 60 ml @ 10 ml daily at night.