
Animals, Journal Year: 2025, Volume and Issue: 15(4), P. 566 - 566
Published: Feb. 15, 2025
In the diet of calves, search for additives that aid in their development is essential due to impact these can generate throughout lives, resulting a relationship with longevity and maintenance herd. Yuca schidigera has been used ruminant diets, impacting health performance; however, there are few reports on its intake by dairy cattle rearing phase. Therefore, this study's objective was evaluate whether adding Yucca calves phase benefit health, productive performance, feed efficiency. The study conducted over 60 days, 24 divided into two groups: G1 had no added G2 188 mg per kg dry matter intake. Data samples were collected at 30-day intervals. No treatment effect observed body weight, weight gain, daily or (p > 0.05); showed 26.3% lower efficiency than those G1. Using concentrate consumption amount ingested calculated, i.e., 555 mg/calf/day. total leukocyte count significantly compared 60th day. from × day interaction hematologic variables: erythrocytes, hemoglobin, hematocrit, lymphocytes, granulocytes, monocytes, platelets. activities enzyme's gamma glutamyl transferase aspartate aminotransferase higher animals group G2. There albumin, globulin, protein, C-reactive glucose, cholesterol, urea, amylase. levels reactive oxygen species, lipid peroxidation, glutathione S-transferase, which blood control. activity myeloperoxidase, superoxide dismutase, catalase did not differ between groups. Tumor necrosis factor interleukins (IL-1 IL-6) serum consumed A concentration short-chain fatty acids ruminal fluid G1, primarily acetic acid. amounts propionate butyrate These results allow us conclude dose mg/animal/day interferes calves' metabolism negatively affects
Language: Английский