Effects of different sources and levels of tannins on live performance and antioxidant response of Ossimi lambs

Abstract

Pomegranate peels (PP) and mango leaves (ML) were analysed for nutrients and tannin contents. In an in vitro test, ten diets were prepared; six contained 2, 4 and 6% of PP or ML, three diets supplemented with mixed levels of PP and ML (1 + 1%, 2 + 2% and 3 + 3%) and control diet free of them. Gas was measured after 3, 6, 12, 24, 48 and 72 h of incubation. Methane and rumen parameters were estimated. In an in vivo experiment, 40 Ossimi lambs were divided into four groups; the first was control, other groups (T1, T2 and T3) fed diets containing 6% PP, 6% ML or mix levels (3% PP + 3%ML), respectively, for 2 months. Results showed that PP and ML were rich in tannins. In the in vitro test, a maximum reduction in gas, methane and NH3-N was in 6% PP, 6% ML and mixed levels (3% PP + 3% ML). In the in vivo experiment, there were no differences in growth and digestibility of DM and nutrients between treatment groups. Only a lowered DM intake and protein digestibility in lambs fed 6% PP. Gas and methane emission was decreased significantly in lambs fed 6% PP, compared to other groups. TVFAs and NH3-N were decreased for treatment groups. Also, all treatments did not show any pathological changes in liver function or on oxidative stress markers. In conclusion, PP and ML can be used in sheep diets at inclusion levels of 6% and mixture without detrimental effects on general health of Ossimi lambs.

Growth Performance, Meat Quality and Antioxidant Status of Sheep Supplemented with Tannins: A Meta-Analysis

“…The authors declare no conflict of interest. [20] Brazil CL CT E Dey et al [106] India Ficus infectoria (n = 3) B, B, B N, N, N Abdalla et al [107] Brazil OP, Clep B, B N, N Fernandes et al [14] Brazil Mimosa tenuiflora (n = 3) B, B, B N, N, N Francisco et al [108] Portugal CL (n = 2) CT, CT N, N Girard et al [109] Switzerland LC and OV B, B N, N Guerreiro et al [110] Portugal CL (n = 4) CT, CT, CT, CT, CT N, N, N, N, N Gruffat et al [111] France OV (n = 2) CT, CT N, N Hart et al [112] United Kingdom Pisum sativum (n = 4) CT, CT, CT, CT, CT N, N, N, N, N Hassan et al [113] Egypt Punica granatum, MI, B B, B, B N, N, N Hatami et al [114] Iran Punica granatum (n = 3) B, B N, N Jerónimo et al [115] Portugal VV (n = 2), CL (n = 2) CT, CT, CT, CT, CT E, N, E, N Jerónimo et al [116] Portugal VV (n = 2), CL (n = 2) CT, CT, CT, CT, CT E, N, E, N Kamel et al [117] Saudi Arabia QU (n = 2) CT, CT E, E Kazemi and Mokhtarpour [118] Iran Prunus amygdalus (n = 3) B, B, B N, N, N Leparmarai et al [119] Switzerland VV B E Lima et al [120] Brazil Macrotyloma axillare B N Liu et al [21] China CH (n = 2) HT, HT E, E López-Andrés et al [91] Italy QU CT E Majewska and Kowalik [121] Poland VAC, Quercus sp. B, B N, N Flores et al [122] Brazil VV (n = 3) B, B, B N, N, N Flores et al [123] Brazil VV (n = 3) B, B, B N, N, N Moghaddam et al [124] Iran Berberis vulgaris (n = 2) B, B N, N Natalello et al [18] Italy Punica granatum B N Nobre et al [125] Brazil Psidium guajava (n = 4) B, B, B, B, B N, N, N, N, N Norouzian and Ghiasi [126] Iran Pistacia vera (n = 3) B, B, B N, N, N Obeidat et al [127] Jordan Ceratonia siliqua (n = 2) CT, CT N, N Odhaib et al [128] Malaysia RO (n = 3), NS (n = 3), B (n = 3) B (n = 9) N (n = 9) Pathak et al [13] India B, B CT, CT N, N Peng et al [95] Canada Dalea purpurea CT N Po et al…”

Forage Preference, Voluntary Intake, and In Vivo Digestibility of Six Tropical Tree Leaves by Sheep in Semi-Arid Areas in Benin Republic (West Africa)

“…Introducing G. arborea leaves into small ruminant diets improved protein digestibility [64]. Moreover, M. indica leaves can be used in lambs' rations at a rate of 6% without any harmful effects [65], and B. sapida leaves are easily consumed by goats and have a high digestibility of DM and CP [66]. A study on browse leavf digestibility showed that nitrogen retention was positive for some browse species [67].…”

Screening of antioxidant activities and their bioavailability of tropical plants

“…Therefore the use of tannins is highly dependent on the level. The use of tannins as much as 4 g/kg of sheep diet can reduce gas production, increase productivity, and improve digestion and rumen function [29].…”