Navegando por Autor "Silva, Pedro Henrique da"

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    Moringa oleifera como alternativa forrageira: cultivo sob diferentes adubações e inclusão em silagens
    (Universidade Estadual do Norte do Paraná, 2025) Silva, Pedro Henrique da; Porto, Petrônio Pinheiro; https://orcid.org/0000-0002-2999-7612; https://lattes.cnpq.br/1751366795715746; Silva, Marcos Augusto Alves da; https://orcid.org/0000-0002-5570-8677; https://lattes.cnpq.br/4973981237909142; Maeda, Emilyn Midori; https://orcid.org/0000-0001-8953-3935; https://lattes.cnpq.br/2323201152349999; Mexia, Alexandre Agostinho; https://lattes.cnpq.br/7582022951027835; Silva, Marcelo Alves da; https://orcid.org/0000-0002-4299-1530; https://lattes.cnpq.br/3283906522734749; https://lattes.cnpq.br/4973981237909142; https://lattes.cnpq.br/2323201152349999; https://lattes.cnpq.br/7582022951027835; https://lattes.cnpq.br/3283906522734749; https://orcid.org/0000-0002-5570-8677; https://orcid.org/0000-0001-8953-3935; https://orcid.org/0000-0002-4299-1530
    This study evaluated the potential of Moringa oleifera as a forage and nutritional alternative in two complementary experiments conducted at UENP/CLM (Bandeirantes–PR, Brazil). In Chapter I, the effect of two types of nitrogen fertilization (bovine horn and hoof powder, and urea) and three cutting heights (1.96 m, 3.00 m, and 3.40 m) on the productivity and bromatological composition of M. oleifera was investigated. A randomized block design with three replicates was used. Dry matter (DM) yield per hectare increased with cutting height, ranging from 7.2 t DM/ha (1.96 m) to 15.8 t DM/ha (3.40 m), with no significant differences between fertilizer types. The percentage of DM rose from 15.5–17.5% at 1.96 m to 22.2–24.4% at 3.40 m, with urea yielding the highest absolute values for DM (up to 20.3%) and crude protein (CP) (up to 17.9%). Lower cuts (1.96 m) resulted in higher leaf proportion, crude protein, and digestibility (TDN), while taller cuts led to greater stem proportion and fiber content (NDF), reducing nutritional quality. In Chapter II, the progressive inclusion of M. oleifera (0%, 25%, 50%, 75%, and 100%) in silages of three forages—elephant grass (BRS Capiaçu), maize, and sugarcane—was evaluated. After 30–40 days of ensiling in PVC silos, pH, compaction, effluent losses, and bromatological composition (DM, CP, Ash, NDF, TDN) were analyzed. It is concluded that Moringa oleifera, managed with optimized cutting (around 3.0 m) and partially included (25–75%) in silages, represents a viable and sustainable strategy to enhance protein content, reduce fiber fractions, and improve the digestibility of forages, contributing to nutritional security and productivity in animal production systems.