000			02990nab a22003857a 4500
001			67491
003			MX-TxCIM
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008			240507s1969 ilu|||p|op||| 00| 0 eng d
022			_a1525-3163 (Online)
024	8		_ahttps://doi.org/10.2527/jas1969.284478x
040			_aMX-TxCIM
041			_aeng
100	1		_930941 _aCromwell, G.L.
245	1	0	_aNitrogen balance and growth studies of pigs fed opaque-2 and normal corn
260			_aIllinois (United States of America) : _bAmerican Society of Animal Science, _c1969.
500			_aPeer review
520			_aTwo nitrogen balance trials and a growing-finishing experiment were conducted to compare opaque-2 and normal corn for the pig. Opaque-2 corn supported significantly (P<.01) greater nitrogen retention both on an absolute and a percentage basis than did normal corn when pigs were fed isonitrogenous diets of 11.2 or 8.2% protein. When an equivalent amount of corn protein was supplied by each diet, pigs fed opaque-2 corn absorbed significantly (P<.01) more nitrogen and retained a significantly (P<.01) greater percentage of that which was absorbed, indicating that the protein of opaque-2 corn is more digestible and has a higher biological value than normal corn protein. Apparent digestibility of dry matter in a diet containing 97% opaque-2 corn was significantly (P<.01) less than obtained with a similar diet based on normal corn. Similar gains and feed conversions resulted from feeding opaque-2 or normal corn in a corn-soybean meal diet at protein levels of 16% to 45 kg. and 13% thereafter to 92 kilograms. Reducing the protein level to 14 and 11.3% during the two periods did not significantly (P<.05) influence gains or feed/ gain ratios of pigs fed opaque-2 corn but resulted in significantly (P<.01) inferior gains and feed/gains when pigs were fed normal corn. Free-choice feeding of shelled opaque-2 or normal corn and a fortified soybean meal supplement resulted in slightly poorer gains and feed conversions as compared with those fed a complete mixed diet of 16 to 13% dietary protein. Pigs fed opaque-2 shelled corn consumed significantly (P<.05) less soybean meal supplement than those fed normal shelled corn.
546			_aText in English
650		7	_929014 _aAnimal nutrition _2AGROVOC
650		7	_94363 _aSwine _2AGROVOC
650		7	_933860 _aPig breeds _2AGROVOC
650		7	_92912 _aNitrogen _2AGROVOC
650		7	_91173 _aMaize _2AGROVOC
650		7	_930881 _aIn vivo experimentation _2AGROVOC
650		7	_91035 _aCereal proteins _2AGROVOC
650		7	_93639 _aSoybeans _2AGROVOC
650		7	_94464 _aAmino acids _2AGROVOC
650		7	_95257 _aLysine _2AGROVOC
700	1		_933928 _aPickett, R.A.
700	1		_933926 _aCline, T.R.
700	1		_933921 _aBeeson, W.M.
773	0		_dIllinois (United States of America) : American Society of Animal Science, 1969. _gv. 28, no. 4, p. 478–483 _tJournal of Animal Science _wG74391 _x1525-3163 (Online)
942			_2ddc _cJA _n0
999			_c67491 _d67483