000			00497nam a2200169Ia 4500
008			140205s9999 xx 000 0 und d
100			_aRavi. S
245			_aCalcium and phosphorus Requirements of indigenous layer ducks (Anas platyrhynchos)
300			_a115
502			_gDr. P. A. Peethambaran _cKerala Agricultural University , Thrissur _d2002
650			_aAgriculture
650			_aVeterinary science
653			_aCalcium
653			_aDucks
653			_aPhosphorus
942			_2ddc _cPR
999			_c4649 _d4649