000			02189nab a22003254ib4500
003			PH-QcNFR
005			20240808085740.0
008			240202c||||||||ph fr j o||||f0 a|eng|d
022	1		_a2672-2836 (Online)
040			_aPH-QcNFR _beng _cPH-QcNFR
100	1		_aSanico, Avelino Fruta _92905
245	1	0	_aEffects of 17a -Ethynyltestosterone and Estrone on sex ratio and growth of Tilapia Aurea (Steindachner) / _cAvelino Fruta Sanico
264		1	_aQuezon City, Philippines : _bBureau of Fisheries and Aquatic Resources , _c1971
336			_atxt _btxt
337			_ac _bc
338			_acr _bcr
347			_atext file _bPDF
504			_aIncludes bibliographical references
520	3		_aTilapia aurea (Steindachner) were fed androgen (17a –ethynyl-testosterone) or estrone (estrone) at 30ug/gm or 100 ug/gm of diet respectively, for 22 days in steel troughs. Daily feeding was Purina Trout Chow, 12% of body weight divided into three equal portion. Untreated Purina Trout Chow at 12% of body weight divided into three equal portions. Untreated Purina Trout Chow at 10% of body weight was fed in rearing trials in both concrete tanks and earthen ponds once a day, six days a week. One hundred percent males were produced with the androgen in Trial I and 90.3% males in Trial II. Estrogen did not produce a significant effect on sex ratio. Fish treated with androgen had significantly (P<0.005) greater at four months of age, after having been reared in earthen ponds. There was no significant difference (P<0.005) in weight when the fish were sampled at 2 months of age. Estrogen at the dosage level of 100 ug/gm of diet had no effect on sex ratio in T. aurea.
546			_aeng _beng
650		0	_2AGROVOC _aTilapia culture _93114
650		0	_2LCHS _aFishes _xSex ratio _93213
650		0	_2LCHS _aFishes _xGrowth _93214
650		0	_2AGROVOC _aTilapia aurea _93215
650		0	_2AGROVOC _aOreochromis aureus _93216
650		0	_2LCHS _aAndrogens _93217
650		0	_2LCHS _aEstrogen _93218
773	0		_078 _9144 _aPhilippines. _oIRC00018 _tThe Philippine Journal of Fisheries _x2672-2836 (Online) _gVolume 13, Issue no. 1 & 2 (1975), page 1-17
942			_2lcc _n0 _cJA _iIMC000103
999			_c842 _d842