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首页> 外文期刊>Tropical Animal Health and Production >Processed false yam seed meals in broiler chicken diets: effects on feed preference and apparent nutrient digestibility
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Processed false yam seed meals in broiler chicken diets: effects on feed preference and apparent nutrient digestibility

机译：在肉鸡饮食中处理了假山药种子膳食：对饲料偏好的影响和表观营养消化率

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摘要

This study evaluated feed preference and apparent nutrient digestibility of a maize-based diet and modified diets containing treated false yam seed meals (TFYSM). False yam seeds were sun-dried (Un_T), or first soaked in water and treated with one of the following: urea (Urea_T), sodium chloride (NaCl_T), sodium hydroxide (NaOH_T), or potassium hydroxide (KOH_T) and blanched. The TFYSM replaced maize (wt/wt) in experimental diets at 5, 10, 15, 20, 25, 30, 35, 40, 45, and 50%, respectively in a feed preference test (experiment 1). In that study, feed preference test was conducted with 6 x 4 broiler chicks aged 21 days in a randomized complete design; each level of each TFYSM was fed for 24 h and feed intake recorded. In experiment 2 of the study, apparent nutrient digestibility of TFYSM-based diets was evaluated for 15 days with 4-week-old chicks allocated to 5 groups of 20 birds which were further subdivided into 5 treatment groups of 4 birds (replicates) using the inclusion levels of 10, 20, 30, 40, and 50% respectively. The preference test data indicated that feed intake was not compromised when maize was substituted by NaCl_T, NaOH_T, Urea_T, and KOH_T FYSM at all levels, and Un_T FYSM up to 5% inclusion. Dry matter digestibility was generally high (> 75%) in all diets except for Un_T. Control diet and NaOH_T diets had similar CP digestibility, but higher than KOH_T diets, while Un_T diets had reduced CP digestibility. Digestibility of NFE ranged from (77.4%) (Un_T) to (93.8%) (KOH_T). Improving apparent nutrient digestibility of FYSM by sequential use of water-based and chemical treatment methods especially NaOH_T or KOH_T offers the potential to use this alternative feedstuff in broiler diets.
机译：本研究评估了玉米饮食的饲料偏好和表观营养消化率，并含有处理的假山药种子粉（TFYSM）的改良饮食。假山药种子是阳光干燥的（UN_T），或者首先浸泡在水中并用以下方法之一处理：尿素（脲），氯化钠（NaCl_T），氢氧化钠（NaOH_T）或氢氧化钾（KOH_T）和烫伤。 TFYSM分别在5,10,15,20,25,30,35,40,45,35,40,45和50％的实验饮食中取代玉米（WT / WT）（实验1）。在该研究中，饲料偏好测试用6×4肉鸡雏鸡进行21天，在随机的完整设计中进行;每种TFYSM的每个水平都被喂入24小时并记录进料。在该研究的实验2中，用4周龄雏鸡评估了TFYSM饮食的表观营养消化率，分配到5组20只鸟类，进一步将其进一步分为4只鸟类（重复）的5组（重复）分别包含10,20,30,40和50％的含量水平。偏好测试数据表明，当玉米被所有级别的NACL_T，NaOH_T，UTEA_T和KOH_T FYSM代替时，饲料摄入量并未受到损害，并且UN_T FYSM高达5％的夹杂物。除了UN_T之外，所有饮食中的干物质消化率通常高（> 75％）。控制饮食和NaOH_T饮食具有相似的CP消化率，但高于KOH_T饮食，而UN_T饮食降低了CP消化率。 NFE的消化率范围从（77.4％）（UN_T）（93.8％）（koh_t）。通过顺序使用水基和化学处理方法提高高效的表观营养消化率，特别是NaOH_T或KOH_T提供了在肉鸡饮食中使用这种替代饲料的可能性。

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