EFFECT OF FEEDING RICE IMPURITIES WITH OR WITHOUT ACETIC ACID ON PRODUCTIVE PERFORMANCE OF AWASSI LAMBS
DOI:
https://doi.org/10.36103/8bjt7p44Keywords:
Organic acids, rice impurities, ruminants, daily gain, digestibility, feed efficiency.Abstract
The aim of this experiment was to study the effect of replacing treated and untreated rice impurities with urea, with or without acetic acid on the digestibility and performance of Awassi lambs. Twenty-four Awassi male lambs, aged 3-4 months with an initial weight 25.08 ± 0.64kg were divided into six treatments in a 2×3 factorial experiment/ Completely Randomized Design. Experiment period was 56 days, 14/3/2022 to 9/5/2022, preceded by 10 days as an adaptation period. Individual feeding was conducted. All animals fed on three levels of rice impurities treated with urea (0, 50,100%) without acetic acid (T1, T2, T3) and with 1% acetic acid (T4, T5, T6) respectively. The results showed a highly increase (P<0.01) of dry matter and organic matter intake for treatment T6. High increase (P<0.01) of dry matter digestibility (DMD), organic matter digestibility (OMD), digestibility of nutrients and total digestible nutrients (TDN) for treatments T5 and T6. Daily gain and total weight gain increased (P<0.05) for T6, 169.64 g/day and 9.5 kg respectively. In conclusion: Using of 100% rice impurities treated with urea and 1% acetic acid had a positive effect on lambs' performance with best digestibility.
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