Banca de DEFESA: RONAN DE SOUZA NEGREIROS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RONAN DE SOUZA NEGREIROS
DATE: 19/02/2025
TIME: 15:00
LOCAL: Defesa remota
TITLE:

Supplemental sodium chloride in cactus forage-based diets for growing sheep

KEY WORDS:

Nutrient consumption; Lambs; Performance; Food strategy; Mineral; Opuntia stricta.

PAGES: 54
BIG AREA: Ciências Agrárias
AREA: Zootecnia
SUBÁREA: Nutrição e Alimentação Animal
SPECIALTY: Avaliação de Alimentos para Animais
SUMMARY:

The objective was to evaluate the effect of supplemental sodium on the performance and carcass evaluation of beef sheep fed diets based on forage cactus. The experiment was carried out with 40 Santa Inês lambs, uncastrated males, four months old and an average weight of 21.12 ± 2.04 kg, arranged in a completely randomized design for 75 days, with 15 days for adaptation and 60 days for data collection. The diets were formulated with Mexican Elefante Orelha cactus, tifton hay, ground corn, soybean meal, mineral salt and urea. The treatments consisted of increasing inclusions of sodium chloride in the diets (0.00; 3.51; 7.00; 10.45g/kg DM). Samples of the food offered, leftovers, feces and blood were collected, in addition to quantifying water consumption. Increasing sodium levels influenced the consumption of water from food, drinks and total consumption (P <0.05) as a function of experimental time, in addition to the effects on the consumption of DM, OM, CP and NDFcp (P <0.05) with an increasing linear effect. Digestibility NDFcp, PJ and ICP showed increasing linear effects, while neck yield showed a decreasing linear effect. Sodium supplementation in cactus-based diets with metabolic excess of potassium does not optimize water use, does not improve the performance of growing sheep, does not modify ingestive behavior and does not alter blood parameters. Therefore, its inclusion in the diet is not recommended, as it does not bring productive or physiological benefits.

COMMITTEE MEMBERS:
Presidente - FRANCISCO FERNANDO RAMOS DE CARVALHO
Externa ao Programa - 3430593 - KELLY CRISTINA DOS SANTOS - UFRPEExterno à Instituição - MICHEL DO VALE MACIEL - UFAM