Utilization of Date Palm Leaves Treated With Enzymes in Small Ruminants Feeding

Abstract

im of the current study was to investigate the effects of feeding small ruminants on diets contained date palm tree leaves (DPL) incubated or not with enzymes. Biological treatments were used in laboratory experiment to determine the effect of using different enzymes (Cellulase, Taninnase, Fibrolytic and combinations of each with other) on chemical composition of date palm leaves. In vitro trail was conducted using diets contained 40% DPL incubated with enzymes to study in vitro nutrients disappearance. A digestibility trails were carried out to study digestibility coefficients, nutritive values, nitrogen balance, rumen fermentations and microbes and some blood components as follow: D (1): 50 % concentrate feed mixture (CFM) + 50% berseem hay (BH) (control diet). D (2): 50 % CFM + 40% DPL +10% BH.D (3): 50 % CFM +40% DPL incubated with Cellulase enzyme +10% BH. D (4): 50 % CFM +40% DPL incubated with Fibrolytic enzyme +10% BH. D (5): 50 % CFM +40% DPL incubated with Cellulase and fibrolytic enzymes. Results showed that enzymes improved chemical composition of DPL, CP content was increased while CF and its fractions were decreased (P≤0.01). The incubation of DPL in diets with enzymes improved nutrients disappearance. Digestibility coefficients, nutritive values and nitrogen balance showed significant increase (P≤0.01) with diets contained enzymatic DPL. The highest improvement of rumen fermentations and microbes were reported with DPL contained enzymes compared to control and non-enzymatic DPL. Serum total proteins and albumin concentrations were increased significantly (P≤0.01), while urea concentration was decreased with diets contained enzymatic DPL.

Nutrient Digestibility and Growth Performance of Small Ruminants Fed on Date Palm Leaves Treated with Mono and Combined Enzymes الهضم الغذائى واداء النمو للمجترات الصغیرة المغذاه على سعف النخیل المعامل بالانزیمات الفردیة والمتحدة.

“…Kholif and Aziz (2014) found that addition of cellulytic enzymes to goat diets significantly (P<0.01) increased ruminal ciliate protozoa counts. Aziz (2020) found that feeding sheep on diets contained DPL treated with cellulase or fibrolytic enzymes or a combination of them increased number of ruminal protozoa compared with that fed untreated.…”

“…Also, Khorshed (2000) Bassuny et al (2003) and 2009indicated that creatinine concentration in serum of sheep fed biologically treated roughage was higher (P<0.01) than values of those fed controls, and the values ranged from 1.06 to 1.25 (mg/dl) for creatinine. Moreover, Aziz (2020) stated an improvement in blood serum total protein, Albumin, Globulin, urea, AST and ALT for sheep fed DPL treated with cellulase or fibrolytic enzymes or a combination of them compared with that fed untreated. Digestibility trail: Feed intake:…”

Nutritional and Productive Performance of Sheep Fed on Date Palm Leaves Silage with or Without Addition of Bacteria الأداء الغذائى والإنتاجى للأغنام المغذاه على سیلاج أوراق نخیل البلح مع أو بدون اضافة البکتریا

“…The present results are in agreement with Aziz (2009) who showed that olive tree leaves ensiled with biological treatments increased DM, OM, EE and CP and decreased CF, NDF, ADF and ADL. Also, Aziz (2019 and2020) reported that ensiling DPL with urea or with fibrolytic enzymes enhanced chemical composition especially OM and CP, while CF, NDF, ADF and ADL were decreased.…”

“…Abd El Tawab et l. (2018) reported that ammonia concentration recorded higher value for olive cake silage treated with fibrolytic enzymes compared with control. Aziz (2019 and2020) found an improvement in concentrations of ruminal pH, TVFA's, NPN, NH3-N, TN, TP and MP for sheep fed DPL ensiled with urea or with enzymes.…”

“…and total protozoa count. Also, Aziz (2019 and2020) showed that sheep fed ensiled DPL with urea or fibrolytic enzymes recorded higher counts of ruminal protozoa compared with that fed untreated.…”