Banca de DEFESA: VANDERSON ELIEL MEIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : VANDERSON ELIEL MEIRA
DATA : 11/03/2024
HORA: 08:30
LOCAL: Alta Floresta
TÍTULO:

Fruits of the "bordão de velho" (Samanea tubulosa) can improve cattle feed in pasture production systems in the Amazon region

PALAVRAS-CHAVES:

Livestock, Sustainability, Animal Nutrition.

PÁGINAS: 101
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
RESUMO:

Livestock farming plays a fundamental role in the Brazilian economy, with the country being the global leader in commercial cattle farming and maintaining a vast herd of around 209 million head. However, the productivity of pasture-based systems still faces challenges related to the inadequate management of animals, plants and soils, leading to the degradation of pastures and the replacement of these areas with crops, with detrimental consequences such as loss of biodiversity, deforestation and decreased soil fertility. Grazing systems offer advantages in terms of reduced costs, but face limitations due to the quality of tropical forage, are affected by seasonal cycles in tropical regions with a reduction in the availability food during the dry season, as well as challenges associated with animal welfare. To face these challenges, it is important to adopt management practices that benefit animal health, reduce external inputs, use local inputs, optimize the efficiency of production systems and combine animal and forage species. An interesting approach is the use of tree species whose leaves and fruit can be used in animal feed, because as well as improving the nutritional value of the diet, they provide shade and thermal comfort for the animals and can also have a positive impact on the soil. The aim of this research is to assess the potential for using the fruit of Samanea tubulosa, known as bordão de velho, in the northern region of Mato Grosso, in cattle feed on pasture. The research work is divided into three chapters: the first investigates the morphological characteristics of Samanea tubulosa trees present in pastures and their relationship with visual aspects of forage quality and availability; the second evaluates the nutritional quality of the fruits of this species through bromatological analysis and in vitro digestibility and fermentation; finally, the third chapter examines the differences in behavior and weight gain of animals supplemented with the fruits of the tree compared to animals on traditional pastures. The results point to the great potential of Samanea tubulosa as a key species for pasture systems in the Amazon region, given its favorable conformation for intercropping with forage plants, not interfering negatively with pasture availability, its nutritional potential, given the crude protein and non-fibrous carbohydrate contents, and the greater weight gain of the pasture animals supplemented with its fruit.

MEMBROS DA BANCA:
Presidente - 255123001 - ALEXANDRE DE AZEVEDO OLIVAL
Interno - 117000004 - MARCO ANTONIO CAMILLO DE CARVALHO
Externo à Instituição - ANA KARINA SALMAN - EMBRAPA