Banca de DEFESA: ISABELLA COMBAT VITAL

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ISABELLA COMBAT VITAL
DATE: 12/07/2024
TIME: 13:00
LOCAL: UFRRJ, Seropédica - RJ
TITLE:

Evaluation of Sorghum BRS Ponta Negra, Tithonia diversifolia and Gliricidia sepium silages submitted to different intercropping arrangements for organic dairy farming systems.

KEY WORDS:

Legume, supplementary forage, nutritional value, agroecological milk production.

PAGES: 30
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Pastagem e Forragicultura
SPECIALTY: Avaliação, Produção e Conservação de Forragens
SUMMARY:

In organic dairy farming, feeding the herd is a challenge, especially in the dry period of the year due to the reduced forage supply in the pastures when bulky supplementation in the trough is necessary. Forages traditionally used to supplement herds during the dry season (chopped sugarcane and corn, sorghum and elephant grass silages) have a low crude protein (CP) content and non-GMO protein supplements are scarce and expensive. , which makes the search for alternative forages with a higher concentration of CP relevant. An alternative to increase the CP of the forage is the intercropping with legumes or forages with high CP content. In this context, Gliricidia sepium and Tithonia diversifolia stand out for being cultivated in different regions of the world with high forage yield and high levels of CP. Therefore, the objective of the project is to evaluate the productivity, conservation and nutritional quality of sorghum silage (Sorghum bicolor (L.) Moench) cv. BRS Ponta Negra in monoculture and intercropped with Gliricidia sepium and Tithonia diversifolia. Therefore, an experiment will be conducted at Fazendinha Agroecológica, in 200 m² of experimental area. For the evaluation of the production of green and dry matter, a complete randomized block design will be adopted, with six field replications. To evaluate the fermentation profile and chemical composition of the silages, forage samples, harvested and chopped, will be placed in PVC silos with a capacity of 2.6 liters, which will be opened after 56 days of fermentation and evaluated for losses, acid analysis acetic and lactic acid and chemical composition.

COMMITTEE MEMBERS:
Interno - 3058101 - ANDRE MORAIS MOURA
Externo à Instituição - FLÁVIO MORENO SALVADOR
Externa à Instituição - LUIZA CARNEIRO MARETI VALENTE