000 02921nab a2200361 i 4500
003 BR-BrBNA
005 20250404174242.0
008 250404b2020 bl.ar|pooa||| 00| 0 eng |
040 _aBR-BrBNA
_beng
072 _aQ52
_b0120
100 _aBueno, Jonatas Lopes
100 _aBolson, Dheyme Cristina
100 _aJacovaci, Fernando Alberto
100 _aGomes, Ana Luiza Mendonça
100 _aRibeiro, Matheus Gonçalves
100 _aBueno, Antonio Vinicius Iank
100 _aJobim, Clóves Cabreira
100 _aDaniel, João Luiz Pratti
245 _aStorage length interacts with maturity to affect nutrient availability in unprocessed flint corn silage
500 _aPublicação on-line; 7 illus; 2 tables; Sumaries (En); Bibliography p. 11 - 14
520 _a ABSTRACT - Our objective was to determine the effects of maturity and storage length on the fermentation pattern, ruminal disappearance of nutrients, and recovery of digestible nutrients in flint corn (Zea mays L.) silage harvested with a pull-type machine without a kernel processor. Corn plants were harvested at 300 g kg−1 DM (low dry matter, LDM) or 400 g kg−1 DM (high dry matter, HDM) and stored for 0, 7, 14, 30, 60, 90, 120, and 180 d in laboratory silos. Corn harvested at HDM had a higher proportion of long particles (>19 mm), more intact kernels, and lower kernel processing score. There was an interaction between maturity and storage length for several fermentation end-products, DM recovery, ruminal disappearance of nutrients, and recovery of digestible DM. Overall, the concentrations of fermentation endproducts were higher in LDM than in HDM silage. The DM recovery decreased over time, mainly for LDM silage. Ruminal disappearance of nutrients (starch, CP, and DM) increased with storage length, with greater values for LDM silage at shorter storage, but closer values among LDM and HDM at longer storage periods. The recovery of digestible DM (DM recovery × ruminal disappearance) slightly increased in LDM silage up to 26 d of fermentation, but it markedly increased in HDM silage, mainly up to 60 d of storage. Storing for longer periods is a strategy to partially offset the negative impact of maturity on the digestibility of flint corn silage harvested with pull-type machines without kernel processor. Keywords: digestibility, fermentation, proteolysis, starch
650 _aMILHO
650 _aARMAZENAMENTO
650 _aSILAGEM
650 _aMATÉRIA SECA
650 _aDIGESTIBILIDADE
650 _aFERMENTAÇÃO
650 _aPROTEÓLISE
773 0 _03545
_9317600
_dViçosa-MG Sociedade Brasileira de Zootecnia 1997
_o2024-4310
_tRevista Brasileira de Zootecnia (Brazil)
_x1516-3598
_gv. 49 p. 1-14 ; (2020)
_wBR2024000522
856 _uhttps://www.scielo.br/j/rbz/a/FBJqGBmnDngGZkcXRSKLPjt/?format=pdf&lang=en
942 _cANA
999 _c330862
_d330862