02586nab a2200325 i 4500003000900000005001700009008004100026040001800067072001400085100002800099100002800127100002900155100003200184100002800216100004300244100003500287100004100322245012400363500007000487520135700557650001001914650003101924650001001955650002001965650001101985650001401996650001202010773016002022856007802182BR-BrBNA20250422214603.0250422b2020    bl.ar|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aL51b5240  aNobre, Priscila Torres   aCosta, Roberto Germano   aGuerra, Ricardo Romão   aOliveira, Juliana Silva de   aRibeiro, Neila Lidiany   aCarvalho, Francisco Fernando Ramos de   aMedeiros, Ariosvaldo Nunes de   aSaliba, Eloisa de Oliveira Simões   aRuminal and morphometric parameters of rumen and intestine in lambs fed guava (Psidium guajava L.) agroindustrial waste  aPublicação on-line; 38 ref.; 2 illus; 3 tables; Sumaries (En)  a

ABSTRACT - The objective of this study was to evaluate the effect of guava agroindustrial waste (GAW) on ruminal parameters (pH, N-NH3 , and microbial protein), volatile fatty acid (VFA), and morphometry of the rumen and intestine of sheep. A total of forty Santa Inês sheep (120 days old and 21.3±2.62 kg) were used. The animals were fed diets with 0, 7.5, 15, 22.5, and 30% inclusion of GAW. The pH, ammonia nitrogen, microbial protein, and VFA were evaluated in the ruminal fluid, alongside the morphometric characteristics of the rumen and intestine. The inclusion of GAW linearly increased fasting and postprandial pH, N-NH3  only showed a quadratic effect for fasting animal, whereas MP presented a quadratic effect for pre- and post-prandial animals. There was a quadratic effect for papilla width, with a maximum value of 393.33 μm at the level of 34.43% GAW in the diet. The papilla absorption area showed a linear effect, in which increasing levels of GAW in the diet had a smaller area of papillae absorption. The inclusion of GAW in the diet of Santa Inês sheep favored pH neutrality, reduced N-NH3 and ruminal MP concentrations, decreased the thickness of the rumen muscular layer, and increased the intestinal mucosa, favoring greater absorption of nutrients.

Keywords: microbial protein, pH, ruminal ammonia, volatile fatty acid  aOVINO  aABSORÇÃO DE NUTRIENTES  aDIETA  aDIGESTIBILIDADE  aGOIABA  aRESÍDUO  aRÚMEN0 03545dViçosa-MG Sociedade Brasileira de Zootecnia  1997o2024-4310tRevista Brasileira de Zootecnia (Brazil)x1516-3598gv. 49 p. 1-9; (2020)w2025000625  uhttps://www.scielo.br/j/rbz/a/Lhr7JHtjK83CCyFSVKxZ5BS/?format=pdf&lang=en