000			03553nab a22003857a 4500
001			67881
003			MX-TxCIM
005			20250407162651.0
008			240906s1982 -us|||p|op||| 00| 0 eng d
022			_a1525-3163 (Online)
024	8		_ahttps://doi.org/10.2527/jas1982.554909x
040			_aMX-TxCIM
041			_aeng
100	1		_aLomas, L.W. _936723
245	1	0	_aAmmonia treatment of corn silage. I. Feedlot performance of growing and finishing steers
260			_aUnited States of America : _bAmerican Society of Animal Science ; _bOxford University Press, _c1982.
500			_aPeer review
520			_aThree experiments were conducted to compare the feedlot performance of cattle fed corn silage treated with cold-flow anhydrous ammonia (ANAM) with the performance of cattle fed corn silage treated with other forms of nonprotein nitrogen (NPN) at the time of ensiling or untreated silage supplemented with soybean meal (SBM) at feeding time. Various sources and levels of supplemental N and systems of protein and mineral supplementation were evaluated to determine their effect on the feedlot performance of growing and finishing steers. A weighted average across the three trials revealed that cattle fed ANAM-treated silage had a 4.5% lower average daily gain (ADG) and an 8.8% higher dry matter intake/kg of gain than those fed untreated corn silage supplemented with SBM to a similar crude protein equivalent. In trial 1, addition of minerals in the form of ammonia mineral suspension (AMS) at time of ensiling resulted in a higher ADG (P = .004) and lower intake/kg of gain (P = .007) than did addition of minerals to ammonia-treated silage at feeding time. However, in trial 3, addition of minerals or calcium hydroxide to ANAM-treated corn silage at the time of ensiling resulted in no improvement in animal performance. Soybean meal supplementation of silage treated with 7.80 or 10.29 g of ANAM/kg of corn silage dry matter (CSDM) during the initial phase of the feeding period resulted in a higher ADG (P<.0005) and lower DM consumption/kg of gain (P = .052) in trial 2. However, in trial 3, SBM supplementation of silage treated with 7.80 g of ANAM/kg CSDM resulted in no improvement in overall performance (P>.20). In trials 2 and 3, supplementing untreated corn silage with SBM at a percentage of the diet that was decreased as the cattle became heavier resulted in ADG and feed efficiency similar (P>.20) to those obtained from the feeding of a constant level of SBM throughout the feeding period. In trial 3, cattle fed ANAM-treated corn silage had higher marbling scores (P = .030) and higher quality grades (P = .030) than those fed untreated silage supplemented with SBM. Carcass data were not collected in trials 1 and 2.
546			_aText in English
650		7	_aAmmonia _2AGROVOC _92028
650		7	_aMaize _2AGROVOC _91173
650		7	_aNonprotein nitrogen _2AGROVOC _936724
650		7	_aProteins _2AGROVOC _91224
650		7	_aSilage _2AGROVOC _910374
650		7	_aFeedlots _2AGROVOC _933857
650		7	_aPerformance testing _2AGROVOC _94433
650		7	_aBullocks _2AGROVOC _926009
650		7	_aDry matter content _2AGROVOC _934163
650		7	_aCalcium hydroxide _2AGROVOC _924500
650		7	_aSoybeans _2AGROVOC _93639
700	1		_aFox, D.G. _936725
700	1		_aBlack, J.R. _936726
773	0		_dUnited States of America : American Society of Animal Science ; Oxford University Press, 1982. _gv. 55, no. 4, p. 909–923 _tJournal of Animal Science _wG74391 _x1525-3163 (Online)
942			_2ddc _cJA _n0
999			_c67881 _d67873