02698naa a2200325 a 450000100080000000500110000800800410001910000180006024501360007826000090021452017510022365000130197465000150198765000180200265000160202065000270203665000160206365000230207965000180210265300240212065300180214470000260216270000170218870000200220570000190222570000200224470000230226470000160228777300690230321757142025-05-19       2025    bl uuuu     u00u1 u    #d1 aLANDIM, A. V.  aBy‐product from biscuit manufacture as corn replacements in sheep dietsbnutritional and metabolic traits.h[electronic resource]  c2025  aAbstract: The objective was to evaluate the efect of by-product from biscuit manufacture (BBM) as an alternative to corn with diferent replacement levels on the nutritional and metabolic parameters of sheep. The diets were formulated to meet the requirements of fnishing lambs aiming at a weight gain of 200 g/day, based on Tifton 85 grass hay, soybean meal, and BBM replacing corn at 0, 15, 30, and 45%. A digestion system (TE-150, TECNAL®) was used for the in vitro digestibility analysis. The experiment was conducted in two parts: incubation of the feed and incubation of the diets. For the in vivo studies, twenty 4-month-old non-castrated male Morada Nova lambs, weighing on average 17.1 kg were used. A trial of nutrient intake and apparent digestibility was conducted over a period of 21 days, with a 15-day adaptation period a 7-day sample collection period. For the assessment of ingestive behavior, the time spent on diferent activities was recorded through visual observation of the animals every fve minutes, for three full 24-h periods. Data were subjected to regression analysis. For the metabolic parameter trial, rumen fuid and blood were collected at pre-established times: 0 h (pre-prandial) and 2, 5, 8 h post-prandial, and the data recorded were subjected to split-plot analysis. The diferent substitution levels showed similarities in nutrient intake and apparent digestibility (P&lt0.05). There was a positive linear efect of diets containing BBM on the efciency of dry matter intake and neutral detergent fber rumination. Substituting corn with BBM up to 45% in sheep diets maintained similar nutritional and metabolic parameters as well as ingestive behavior compared to a diet containing only corn as the energy source.  aBiscuits  aByproducts  aDigestibility  aFeed intake  aIn vitro digestibility  aMetabolites  aRuminant nutrition  aSheep feeding  aAlternative feeding  aFeed efciency1 aSILVA, L. de N. C. da1 aPRIMO, A. A.1 aCOSTA, H. H. A.1 aLIMA, L. D. de1 aSOUSA, L. C. O.1 aSILVEIRA, R. M. F.1 aMCMANUS, C.  tTropical Animal Health and Productiongv. 57, article 222, 2025.