■为了对抗家禽业的肠道感染和抗生素耐药性,研究人员寻找益生菌等替代品,益生元,和合生元作为生长促进剂。合生元通过提供必需营养素来支持益生菌的生长。该研究的目标是评估合生元最有效的递送方法并评估其生长,组织形态计量学,以及对Cobb-500肉鸡的血液学影响。
■两项研究,独立进行,采用完全随机设计。第一个试验中的一百八十只活卵被分配到三组:对照组(T1),无菌水(T2),和在无菌水中的合生元(T3)。在孵化的第21天,孵化率,一天的体重,和回肠样本进行组织形态学分析。在第二次审判中,在500个可行的鸡蛋中,用合生元(PoultryStar®溶胶,Biomin新加坡私人有限公司,新加坡)在17.5天和300天被搁置,没有卵内注射。处理为对照(T1),在水合生元(T2)中,在卵共生(T3),卵内合生元和饲料中合生元的组合(T4),和合生元仅在饲料中(T5)。在21天和42天,血,回肠,收集内脏器官样本进行实验室分析。关于体重增加的数据,每日采食量,和用水量记录为42天。
■最初的实验结果表明孵化率下降,体重略有增加,和显著的肠道形态变化与使用卵内共生。在第二次试验中通过各种方法应用合生元产生了更好的生长结果,降低血液胆固醇,第21天绒毛明显更长(p<0.05)。
■使用卵内方法施用合生元降低了孵化率。任何方法或组合使用合生元可促进生长,回肠结构,敷料产量,饲料效率,和血液中的胆固醇水平。当通过多种方法使用时,合元增强肉仔鸡的肠道健康和整体性能。
UNASSIGNED: To combat enteric infections and antibiotic resistance in the poultry industry, researchers seek alternatives such as probiotics, prebiotics, and synbiotics as growth promoters. Synbiotics support probiotic growth through the supply of essential nutrients. The study\'s objectives were to assess the most effective delivery methods for synbiotics and evaluate their growth, histomorphometric, and hematological impacts on Cobb-500 broilers.
UNASSIGNED: Two studies, independently conducted, employed a completely randomized design. One hundred and eighty viable eggs in the first trial were assigned to three groups: Control (T1), sterile water (T2), and
synbiotic in sterile water (T3). On the 21st day of hatching, hatchability, day-old body weights, and ileum samples for histomorphometric analysis were recorded. In the second trial, out of 500 viable eggs, 200 eggs were fed in ovo with synbiotics (PoultryStar® sol, Biomin Singapore Pte Ltd, Singapore) on 17.5 days and 300 were set aside without in ovo injection. The treatments were control (T1), in water
synbiotic (T2), in ovo
synbiotic (T3), combination of in ovo
synbiotic and
synbiotic in feed (T4), and
synbiotic in feed only (T5). On 21 and 42 days, blood, ileum, and visceral organ samples were collected for laboratory analysis. Data on weight gain, daily feed intake, and water consumption were recorded for 42 days.
UNASSIGNED: The initial experiment\'s results revealed a decrease in hatchability, slight weight increase, and significant intestinal morphological changes with the use of an in ovo
synbiotic. Applying
synbiotic through various methods in the second trial yielded better growth results, lower blood cholesterol, and significantly longer (p < 0.05) villi on 21 days.
UNASSIGNED: Using the in ovo method to administer synbiotics lowered hatchability. Use of synbiotics with any method or in combination enhances growth, ileum structure, dressing yield, feed efficiency, and cholesterol levels in blood. Synbiotics enhance gut health and overall performance in broilers when used through diverse approaches.