격이 다른 오디오북 생활을 경험해보세요!
논픽션
Practical guide for the breeding off African catfish (Clarias gariepinus) discuses in a layman language processes required to breed African catfish seeds(fingerling) including water as a basic factor in catfish breeding, important things to put in place before embarking on catfish seed breeding, seed multiplication; its definition and process as well as post-hatching management of newly hatched fry. It elaborates every technical aspect of catfish breeding; construction of ponds/tank, identification of sexually matured female and male catfishes ,hormone required for breeding taking note of the dosages based on fish weight, routine management required to nurse the hatched fry to fingerling guaranteeing 95% success in nursing. This book is good for students of colleges and universities studying aquaculture and fishery or agricultural related course, lecturers or instructors teaching fish breeding as well as individual farm owners seeking to establish catfish hatchery.
© 2024 PublishDrive (전자책 ): 6610000720699
출시일
전자책 : 2024년 11월 19일
태그
국내 유일 해리포터 시리즈 오디오북
5만권이상의 영어/한국어 오디오북
키즈 모드(어린이 안전 환경)
월정액 무제한 청취
언제든 취소 및 해지 가능
오프라인 액세스를 위한 도서 다운로드
친구 또는 가족과 함께 오디오북을 즐기고 싶은 분들을 위해
2-3 계정
무제한 청취
2-3 계정
무제한 청취
언제든 해지하실 수 있어요
2 개 계정
17900 원 /월한국어
대한민국