Banca de DEFESA: YASMIN DOS SANTOS SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : YASMIN DOS SANTOS SILVA
DATE: 21/02/2025
TIME: 08:00
LOCAL: DZ
TITLE:

Physiological aspects and blood parameters of sheep fed with cactus and supplemented with vitamin C under water restriction.

KEY WORDS:

water intake, blood metabolites, sheep, forage cactus

PAGES: 47
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Nutrição e Alimentação Animal
SPECIALTY: Avaliação de Alimentos para Animais
SUMMARY:

The aim of this study was to evaluate the effect of vitamin C supplementation on reducing water stress in female sheep fed diets based on forage cactus. Twenty adult females (mean weight of 50 kg ± 3.3) were used in a 45-day experiment, with 15 days of adaptation and 30 days of data collection. The animals were kept in metabolic cages and received a diet composed of 46.3% Tifton hay, 51.5% forage cactus, 1.1% urea + ammonium sulfate and 1.1% mineral mixture. The treatments included: control with water ad libitum, free water restriction without supplementation, and free water restriction with supplementation of 3, 5 or 10 g/day of vitamin C. The analyses included intake and apparent digestibility, blood and urine biochemical parameters, and water balance. The data were statistically analyzed in a completely randomized design, with a significance level of P ≤ 0.05. No significant differences (P>0.05) were observed regarding the intake and digestibility of nutrients, as well as the water balance of the animals supplemented with different doses of vitamin C. The level of vitamin C supplementation influenced some metabolites related to the protein profile, such as urea and uric acid, as well as phosphorus, ALT, cholesterol, triglycerides, HDL, LDL and glucose (P<0.05). Further studies are recommended, since higher doses of vitamin C may be promising. However, the inclusion of 51% of forage cactus in the diet of sheep kept without access to a water trough appears to meet water requirements, being an excellent alternative for regions with little water supply.
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COMMITTEE MEMBERS:
Presidente - MARCELO DE ANDRADE FERREIRA
Interno - FRANCISCO FERNANDO RAMOS DE CARVALHO
Externa à Instituição - STELA ANTAS URBANO - UFRN