期刊
TROPICAL ANIMAL HEALTH AND PRODUCTION
卷 53, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/s11250-021-02907-9
关键词
Additive; Digestibility; Intake; Ruminal parameters; Serum biochemistry
资金
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - CAPES
- Fundacao de Amparo a Pesquisa do Estado de Alagoas (FAPEAL)
The addition of 15 mL of red propolis extract did not have a significant impact on the intake, digestibility, ruminal parameters, and serum biochemistry of sheep in different roughage: concentrate ratios.
The aim of the present study was to evaluate whether the addition of red propolis extract (RPE), in different roughage: concentrate (R:C) ratios, influences the intake, digestibility, ruminal parameters, and serum biochemistry of sheep. We used eight Santa Ines sheep with an average body weight of 29.45 +/- 1.58 kg, housed in metabolism cages for 60 days, and distributed in two simultaneous Latin square designs in a 2 x 2 factorial scheme. The factors consisted of two R:C ratios (70:30 and 30:70) with or without the addition of 15 mL/day of RPE. No interactions were found (P > 0.05) between R:C ratios and with or without RPE. Sheep fed 30:70 ratio showed higher (P < 0.05) intake and dry matter (DM) digestibility and non-fibrous carbohydrates and lower (P < 0.05) intake and neutral detergent fiber (NDF) digestibility. The addition of RPE did not influence (P > 0.05) the intake or nutrients digestibility, but the sheep that received RPE had a higher (P < 0.05) ruminal pH and longer (P < 0.05) time of rumination (min/kg DM) compared to the group without propolis. The ruminal ammonia concentration was higher for sheep fed 70:30 ratio, but the concentrations of total protein and albumin did not differ between R:C ratios. The addition of 15 mL of RPE does not influence the intake, digestibility, ingestive behavior, and rumen ammonical nitrogen of sheep. There is no association between the R:C ratio and the addition of 15 mL/day of RPE for sheep.
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