Use of palm bran ( Nopalea cochenillifera (L.) Salm-Dyck) in partial replacement of concentrate in maintenance equine diets – a pilot study

Rodrigues, Paula Gomes; Garcez, Diana Silva Maynard; Silva, Camilla Mendonça; Santana, Camilla Cristina Santos; Santana, Juliana Caroline Santos; Lopes, Claudia da Costa; Muniz, Evandro Neves; de Oliveira Júnior, Gregório Murilo; Silva de Moura, Raquel; de Souza, José Camisão

Forage palm is extremely suitable as animal fodder due to its high tolerance to the climatic rigors of the semiarid region and its ability to withstand the harsh physical–chemical limitations of poor soils. Thus, in this study, the effects of the partial replacement (0 %, 5 %, 10 % and 15 % replacement) of a molasses- or oat-based commercial concentrate with forage palm bran (FPB) on the acceptability, apparent digestibility and glycemic response of horses at maintenance were evaluated. The ratio of concentrate to roughage (Tifton 85 hay) was inline-formula30:70, and the dry matter (DM) intake was 2 % of body weight (BW). For the preference test, 10 barren Mangalarga Marchador mares were used. The experimental diets were offered simultaneously to determine the consumption preference and the intake ratio. For the digestibility test, four mixed-breed geldings were used and were distributed in a Latin square experimental design (inline-formula4×4). For the glycemic response, blood samples were collected 30 min before and 30, 60, 90, 120, 180 and 240 min after supplying the feed. The preference test indicated that feed containing 0 % and 5 % FPB was preferred by the animals. Nutrient digestibility coefficients did not differ among the experimental diets. Blood glucose was lower at 180 min in the 7.42 % FPB inclusion diet (inline-formulaR2=0.97); this was estimated using the following equation: inline-formula M4inlinescrollmathml Y = normal 115.05 - normal 2.75 x + normal 0.19 x normal 2 139pt14ptsvg-formulamathimg4bd28578bde4a166f0998e2b7340c3e4 aab-64-273-2021-ie00001.svg139pt14ptaab-64-273-2021-ie00001.png . It is concluded that the incorporation of up to 15 % of forage palm bran as a substitute for concentrate in the maintenance diet tested did not negatively influence feed intake, nutrient digestibility or glycemic index; however, inclusion values above 5 % reduced diet acceptability.



Rodrigues, Paula Gomes / Garcez, Diana Silva Maynard / Silva, Camilla Mendonça / et al: Use of palm bran (Nopalea cochenillifera (L.) Salm-Dyck) in partial replacement of concentrate in maintenance equine diets – a pilot study. 2021. Copernicus Publications.


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