棉籽壳和壳聚糖对羔羊肾脏、肝脏和瘤胃血液代谢和组织病理学的影响

IF 0.6 4区 农林科学 Q3 VETERINARY SCIENCES Veterinarni Medicina Pub Date : 2021-10-10 DOI:10.17221/194/2020-vetmed
TS Magalhaes, G. Carvalho, E. Santos, Aes Lima, JE Freitas Junior, DS Pina, S. Santos, Lfb Pinto, GB Mourao, F. Soares, T. Pereira, LC Leite
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引用次数: 1

摘要

本研究通过测定血液代谢产物谱以及肾脏、肝脏和瘤胃的组织病理学,分析了棉籽壳和壳聚糖在羔羊日粮中的作用。80只未阉割的Santa Inês羔羊,约120天大,平均初始体重(b.w.)为22.6(标准差±2.2 kg),被分配到一个完全随机的设计中,采用2×2的析因安排。评估了两种壳聚糖水平和两种棉籽形式。试验日粮为:不添加壳聚糖的全棉籽壳日粮;添加136 mg/kg b.w.壳聚糖的含WC的日粮;含有磨碎的棉籽壳(GC)的日粮,不添加壳聚糖;添加136 mg/kg b.w.壳聚糖的GC饮食。治疗组的血液代谢产物和肝酶ALT、AST、GGT没有显著影响,但当壳聚糖与整个棉籽壳结合时,血清胆固醇浓度较低(P<0.05)。在喂食不含壳聚糖的棉籽的动物中,肝脏和肾脏组织发生了组织病理学变化(P<0.05),瘤胃样品发生了中度变化,但添加壳聚糖后,变化不那么明显。壳聚糖与棉籽壳(磨碎或整粒)的组合可以安全地提供给饲养场精加工的羔羊,而不会损害它们的健康。
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Health concerns of lambs fed cottonseed hulls combined with chitosan by examining the blood metabolic profile and histopathology of the kidney, liver, and rumen
This study analysed the effect of cottonseed hulls and chitosan in diets for lambs by determining the blood metabolite profile, and the histopathology of the kidney, liver, and rumen. Eighty non-castrated Santa Inês lambs, approximately 120 days of age and a mean initial body weight (b.w.) of 22.6 (standard deviation ± 2.2 kg) were assigned to a completely randomised design, with a 2 × 2 factorial arrangement. Two chitosan levels and two cottonseed forms were evaluated. The experimental diets were following: diet containing whole cottonseed hulls (WC) without the addition of chitosan; diet containing WC with 136 mg/kg b.w. chitosan added; diet containing ground cottonseed hulls (GC) without the addition of chitosan; diet containing GC with 136 mg/kg b.w. chitosan added. The blood metabolites and hepatic enzymes ALT, AST, GGT were not significantly influenced in the treatment groups, except for the serum cholesterol concentration which was lower (P < 0.05) when the chitosan was combined with the whole cottonseed hulls. There were histopathological alterations (P < 0.05) in the liver and kidney tissue and moderate changes in the rumen samples in the animals fed cottonseed without chitosan, however, when chitosan was added, the changes were less marked. The combination of chitosan with cottonseed hulls (ground or whole) can be supplied safely to feedlot finishing lambs without compromising their health.
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来源期刊
Veterinarni Medicina
Veterinarni Medicina Veterinary Sciences-兽医学
CiteScore
1.30
自引率
0.00%
发文量
62
审稿时长
18-36 weeks
期刊介绍: The journal Veterinarni Medicina publishes in English original papers, short communications, critical reviews and case reports from all fields of veterinary and biomedical sciences.
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