Lokman I H, Ibitoye E B, Hezmee M N M, Goh Y M, Zuki A B Z, Jimoh A A
Department of Veterinary Pre-Clinical Science Faculty of Veterinary Medicine, Universiti Putra Malaysia (UPM), 43400, Serdang, Selangor Darul Ehsan, Malaysia.
Department of Theriogenology and Animal Production, Faculty of Veterinary Medicine, Usmanu Danfodiyo University, Sokoto, Nigeria.
Trop Anim Health Prod. 2019 Nov;51(8):2219-2225. doi: 10.1007/s11250-019-01936-9. Epub 2019 May 27.
Majority of the studies on the effect of chitin and chitosan on growth and carcass characteristics of broiler chickens has concentrated more on shrimp chitin and shrimp chitosan, and often with contradictory results. Therefore, the objective of this present study is to evaluate and compare the effect of dietary chitin and chitosan from cricket and shrimp on growth performance, carcass, and organ characteristics of broiler chickens. One hundred fifty-day-old male Cobb500 broiler chicks of similar average weight were randomly allotted into one of the five dietary treatments with three replicates. Treatment 1 (T1) chicks were fed basal diet only (control), treatment 2 and 3 (T2 and T3) chicks were given basal diet with 0.5 g/kg diet of cricket chitin and cricket chitosan, respectively, while treatment 4 and 5 (T4 and T5) chicks were served basal diet with 0.5 g/kg diet of shrimp chitin and shrimp chitosan respectively. No significant variation occurred between cricket chitin and shrimp chitin, although data on growth performance were higher in cricket chitin, but growth performance varied significantly between cricket chitosan and shrimp chitosan. This study revealed that cricket chitin at 0.5 g/kg significantly improved growth performance, carcass quality, and organ characteristics of broilers more than chitosan. Birds fed basal diet alone, although gained more weight, also accumulated more fat having the poorest feed conversion ratio (FCR) and the highest mortality. However, carcass of birds fed cricket chitin was the leanest and thus economically beneficial as they consumed the least amount of feed with the best FCR.
大多数关于几丁质和壳聚糖对肉鸡生长及胴体特性影响的研究更多地集中在虾几丁质和虾壳聚糖上，且结果常常相互矛盾。因此，本研究的目的是评估和比较来自蟋蟀和虾的几丁质及壳聚糖对肉鸡生长性能、胴体和器官特性的影响。将150只平均体重相近的1日龄雄性科宝500肉鸡雏鸡随机分配到五种日粮处理组之一，每组三个重复。处理1（T1）组雏鸡仅饲喂基础日粮（对照），处理2和3（T2和T3）组雏鸡分别在基础日粮中添加0.5 g/kg日粮的蟋蟀几丁质和蟋蟀壳聚糖，而处理4和5（T4和T5）组雏鸡分别在基础日粮中添加0.5 g/kg日粮的虾几丁质和虾壳聚糖。蟋蟀几丁质和虾几丁质之间没有显著差异，尽管蟋蟀几丁质的生长性能数据更高，但蟋蟀壳聚糖和虾壳聚糖之间的生长性能差异显著。本研究表明，0.5 g/kg的蟋蟀几丁质比壳聚糖更能显著提高肉鸡的生长性能、胴体品质和器官特性。仅饲喂基础日粮的鸡，虽然体重增加更多，但也积累了更多脂肪，饲料转化率（FCR）最差，死亡率最高。然而，饲喂蟋蟀几丁质的鸡的胴体最瘦，因此经济效益最佳，因为它们消耗的饲料最少，FCR最佳。
