ArticleTropical animal health and production2026
Effect of adding sorbitol and/or L-carnitine to dairy goat' diets on some metabolic parameters and productivity performance.
Article in Tropical animal health and production, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study evaluated the effects of dietary sorbitol and/or L-carnitine as feed additives on rumen fermentation, blood metabolites, and productivity of lactating Zaraibi goats. Twenty goats (average body weight 40.86 ± 0.99 kg), similar in age, parity, and kidding rate, were randomly assigned to four experimental groups. The experimental period extended from 21 days pre-partum to 90 days of the suckling period. All groups received the basal diet; G1 served as the control, G2 received sorbitol (5 g/head/day), G3 received L-carnitine (30 mg/head/day), and G4 received a combination of both additives. The results indicated that G4 exhibited the highest dry matter intake. Rumen ammonia-N significantly (P ≤ 0.05) decreased in the treated groups. A slight non-significant decrease in TVFAs was observed in the treated groups, except G2 which showed a slight non-significant increase in TVFAs and acetic acid, while such increase was significant (P ≤ 0.05) in propionic acid. Total milk yield was the highest in G4 with improved feed conversion efficiency. Blood analysis of G4 showed significant (P ≤ 0.05) increased glucose with decreased non-esterified fatty acids (NEFA) and β-hydroxybutyrate (BHB). Blood urea-N, total cholesterol, triglycerides and liver enzymes (AST/ALT) were decreased, while total protein and thyroid hormones (T3/T4) were increased. The combination of sorbitol and L-carnitine synergistically improved energy metabolism, milk production, offspring growth and economic efficiency. Therefore, the study recommends the use of sorbitol with L-carnitine as an effective nutritional strategy for improving dairy goat productivity and profitability.
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