da Silva Yara America, de Almeida Vitor Visintin Silva, Oliveira Aline Cardoso, Fonseca Rodrigo Souza, Dos Santos Patrícia, do Sacramento Ribeiro Julimar, Dos Santos Silva Maria Josilaine Matos, de Lima Júnior Dorgival Morais
Universidade Federal Do Agreste de Pernambuco, Bom Pastor Street, Boa Vista, Garanhuns, Pernambuco, 55292-270, Brazil.
Campus Arapiraca, Universidade Federal de Alagoas, Manoel Severino Barbosa Street, Bom Sucesso, Arapiraca, Alagoas, 57309-005, Brazil.
Trop Anim Health Prod. 2021 Sep 22;53(5):472. doi: 10.1007/s11250-021-02907-9.
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 Inês 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 × 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.
精饲料（R:C）比例下添加红蜂胶提取物（RPE）是否会影响绵羊的采食量、消化率、瘤胃参数和血清生化指标。我们选用了8只平均体重为29.45±1.58千克的圣伊内斯绵羊，将其安置在代谢笼中60天，并按照2×2析因设计分为两个同步拉丁方设计。因素包括两个R:C比例（70:30和30:70），分别添加或不添加15毫升/天的RPE。未发现R:C比例与添加或不添加RPE之间存在交互作用（P>0.05）。饲喂30:70比例的绵羊采食量、干物质（DM）消化率、非纤维碳水化合物较高（P<0.05），采食量和中性洗涤纤维（NDF）消化率较低（P<0.05）。添加RPE对采食量或养分消化率没有影响（P>0.05），但与未添加蜂胶的组相比，接受RPE的绵羊瘤胃pH值较高（P<0.05），反刍时间较长（P<0.05）（分钟/千克DM）。饲喂70:30比例的绵羊瘤胃氨浓度较高，但R:C比例之间的总蛋白和白蛋白浓度没有差异。添加15毫升RPE对绵羊的采食量、消化率、采食行为和瘤胃氨氮没有影响。对于绵羊，R:C比例与每天添加15毫升RPE之间没有关联。
