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首页> 外文期刊>Acta Horticulturae >The effect of feeding date palm by-products on ewes and lamb intake and performances.
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The effect of feeding date palm by-products on ewes and lamb intake and performances.

机译：喂养棕榈副产品对母羊和羊肉摄入和表演的影响。

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Two experiments were conducted on D'Man ewes. Date palm by-products (DPB) are whole dates rejected for human consumption. A total of 11 DB varieties were sampled and analyzed. In Exp. 1, suckling ewes (n=20) were used during 90 d to compare a control diet to a DPB diet. Whole or seedless DB nutritive composition, feed intake and lamb BW were measured. In Exp. 2, concentrate was progressively substituted by the DPB mixture during 21 d in 12 ewes. The initial daily offer of DPB was 0.4 kg and the final was 0.7 kg with an increase rate of 50 g every 3 d. The composition of DB changed according to the variety, the rangesbeing: CP (1.99 to 4.50%), NDF (10.52 to 26.05%) and ADF (7.15 to 21.96%). Whole DB have higher contents than seedless DB: CP (3.24 vs. 2.88%), NDF (18.11 vs. 13.93%), ADF (13.01 vs. 9.77%) and ADL (5.99 vs. 5.63%), with a 5% net energy difference (1.92 vs. 2.02 Mcal NEL/kg DM, P=0.071). In Exp. 1, lambs ADG between 10 and 45 d, did not vary according to feeding treatment (C, 113+22; DB, 128+13 g/d). In Exp. 2, ewes feed intake decreased as the rate of concentrate substitution by DB increased. Total daily intake decreased from 1.64 to 1.31 kg from the beginning to the end of the experiment, as a consequence of the decrease of hay intake (0.24 kg/d) and refusing of DB seeds (0.093 kg/d). In conclusion, DPB can substitute concentrate at a minimum rate of 25% in sheep diets, although fill value increases with DB incorporation.
机译：在D'Man Ewes上进行了两项实验。日期棕榈副产品（DPB）是整个日期，拒绝用于人类消费。共对11个DB品种进行取样和分析。在exp。如图1所示，在90 d期间使用哺乳母羊（n = 20），以将控制饮食与DPB饮食进行比较。测量全部或无籽DB营养组合物，进料摄入和羊肉BW。在exp。如图2所示，在12eDE中的21d中，浓缩物在21d中被DPB混合物逐渐取代。 DPB的初始每日报价为0.4千克，最终为0.7千克，增加率为50克。 DB的组成根据多样性，范围：Cp（1.99至4.50％），NDF（10.52至26.05％）和ADF（7.15至21.96％）。全DB的内容含量高于无籽DB：Cp（3.24与2.88％），NDF（18.11与13.93％），ADF（13.01与9.77％）和ADL（5.99与5.63％），净值为5％能量差（1.92 vs.2.02 MCAL NEL / kg DM， P = 0.071）。在exp。如图1所示，10至45d之间的羊羔ADG，不根据进料处理（C，113 + 22; dB，128 + 13g / d）而变化。在exp。如图2所示，eWES进料摄入量随DB的浓缩物替代速率增加而降低。由于枯草摄入量（0.24kg / d）的降低，总日摄入量从1.64开始从1.64到1.31千克下降（0.24kg / d）和拒绝DB种子（0.093kg / d）。总之，DPB可以以绵羊饮食中的最低速率替代浓缩物，尽管填充值随DB掺入而增加。

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