The objective of this research was to determine the ingestive behavior, volatile fatty acids, and blood biochemical and hormonal variables of goats consuming a diet with 15% glycerin. Feed efficiency ...(FE) and rumination (ER) of dry matter intake (DMI) and neutral detergent fiber (NDFI) of dairy goats supplemented with glycerin (0 and 15%) were not influenced by treatments (p > 0.05). The specific activities of defecation, urination and drinking had a significant effect (p < 0.05) in relation to the treatments with glycerin in the diet of dairy goats. The occasional activities (defecation, urinating and drinking water) decreased with the addition of 15% of glycerin in the goats’ diet. Lactic acid had a significant effect (p < 0.001) with the addition of 15% glycerin. Diets for dairy goats with 15% glycerin did not change the consumption of dry material, neutral detergent fiber, nor did they change the ingestive behavior of these animals. The levels of globulin, protein, albumin/globulin, glucose, cholesterol, urea, triglycerides, cortisol, and T4 variables were significantly influenced (p < 0.05) by the addition of glycerin in the diet.
Abstract The objective of this study was to evaluate the productive performance, egg quality and the morphometry of the organs of Japanese quails (Cotournix cotournix japônica) when kept in comfort ...and under thermal stress. 192 nine-week-old quail were used, distributed in a completely randomized design at two temperatures (T1 = 24 °C and T2 = 32 °C), with 12 replicates of eight birds each, with an experimental period of 63 days, divided into three 21-day periods. Feed intake (g fowl-1 day-1), water consumption (mL fowl-1 day-1), egg production (%), egg weight (g), egg mass (g fowl- 1 day-1) and feed conversion (kg kg-1 and kg dozen-1). Laying quails after their production cycle are marketed as beef animals. It is observed that the average final live weight was reduced (P = 0.0362) by 27.58 g in birds kept at a temperature of 32 oC, which can compromise its commercial value. The feed intake of the birds was reduced (P = 0.0051) by 14.75% with an increase in ambient temperature. Birds kept at a temperature of 32 oC for 12 h daily showed a reduction in feed intake, final weight, yolk, and gizzard weight, but without affecting egg production, weight and mass.
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