Productive performance, lipid profile and caecum microbial counts of growing rabbits treated with humic acid

AbstractThe aim of the present study was to evaluate the effect of a humic acid (HA) ‐supplemented diet on productive performance and some physiological parameters of growing rabbits. A total of 80 weaned V‐line rabbits at an age of 4 weeks were randomly divided into four groups. Rabbits of groups 2, 3 and 4 were fed diet containing 35 (HA35), 70 (HA70) and 105 (HA105) mg Humic acid/kg diet while the first group served as control (HA0). Body weight gain was positively affected by HA treatment. HA105 rabbits had the improved feed conversion value. HA treatments had significantly reduced plasma cholesterol concentration and significant increased red blood cells, white blood cells count and plasma high‐density lipoprotein concentrations. However, serum aspartate amino transferase and alanine amino transferase activities, creatinine and the apparent nutrients digestibility values were not affected by HA treatments. Organic matter digestibility of all HA‐treated grou ps significantly increased compared with HA0. At 63 days of age (after 35 days of treatment), caecum microbial counts decreased (total bacteria andEscherichia coli) with HA treatments. Generally HA could be considered as a biological as growth promoter feed additive alternative to antibiotics.
Source: Journal of Animal Physiology and Animal Nutrition - Category: Zoology Authors: Tags: ORIGINAL ARTICLE Source Type: research

Related Links:

This study was carried out to explore the influence of black and red pepper oils (BRPO) as a natural antibacterial agent on growth, carcass, liver and kidney functions, lipid profile, immunity and antioxidant indices of growing quails. A total of 225 Japanese quails (1 ‐week‐old) were haphazardly divided into 5 groups, each group consists of 45 unsexed birds with 5 replications (9 birds each). The first group was fed basal diet (control), and the 2nd, 3rd, 4th and 5th groups fed rations containing BRPO (0.4, 0.8, 1.2 and 1.6 g/kg diet respectively). During 1– 3 weeks of age, body weight gain (BWG) and feed c...
Source: Journal of Animal Physiology and Animal Nutrition - Category: Zoology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Verotoxin, VT (aka Shiga toxin,Stx) is produced by enterohemorrhagic E. coli (EHEC) and is the key pathogenic factor in EHEC-induced hemolytic uremic syndrome (eHUS-hemolytic anemia/thrombocytopenia/glomerular infarct) which can follow gastrointestinal EHEC infection, particularly in children. This AB5 subunit toxin family bind target cell globotriaosyl ceramide (Gb3), a glycosphingolipid (GSL) (aka CD77, pk blood group antigen) of the globoseries of neutral GSLs, initiating lipid raft-dependent plasma membrane Gb3 clustering, membrane curvature, invagination, scission, endosomal trafficking, and retrograde traffic via the...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
AbstractThe study objective was to investigate the effect of three levels of dietary pomegranate by-product extract (PBE) (100, 150, and 200  mg) on growth performance, nutrient digestibility, carcass characteristics, and some blood parameters. Sixty weaned New Zealand White (NZW) rabbits at 5 weeks of age with an average body weight 561.67 ± 6.68 g were randomly allotted to four dietary groups; each group included three replicat es (five rabbits each). The control group was fed a basal diet without PBE; the other three experimental groups fed diets supplemented with PBE at 100-, 150-, a...
Source: Tropical Animal Health and Production - Category: Veterinary Research Source Type: research
AbstractThe enzyme β-glucanase was extracted fromTrichoderma reesei in bovine rumen fluid samples collected from a slaughterhouse and its effect was investigated in broilers. Data collected was broiler performance, carcass characteristics, duodenum microbial flora, hematological, and immunological parameters. β-glucanase activity was assayed through spectrometry and was approximately 0.434 IU per gram culture medium. In the current study, endoglucanase enzymes were extracted fromTrichoderma reesei. A total of 160 local broilers (Golpayegan-Ross hybrid) were allocated to 4 treatments with 4 replicates per tre...
Source: Tropical Animal Health and Production - Category: Veterinary Research Source Type: research
In conclusion, the MOL supplement can enhance growth performance and antioxidant status, alter ileal microbiota and protect against enteropathogens with no deleterious effects on the broiler chickens.
Source: Journal of Animal Physiology and Animal Nutrition - Category: Zoology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Dehydroepiandrosterone resisted E. Coli O157:H7-induced inflammation via blocking the activation of p38 MAPK and NF-κB pathways in mice. Cytokine. 2019 Dec 18;127:154955 Authors: Zhao J, Cao J, Yu L, Ma H Abstract Dehydroepiandrosterone (DHEA), a critical metabolite in cholesterol metabolism, can regulate the inflammatory responses in humans or animals. However, the precise mechanisms of these beneficial actions remains poorly understood. Present study aims to clarify the anti-inflammatory function of DHEA and its possible mechanisms in the E. coli O157:H7-stimulated mice. The results indicated ...
Source: Cytokine - Category: Molecular Biology Authors: Tags: Cytokine Source Type: research
The objective of this study was to determine whether curcumin and a commercial microencapsulated phytogenic supplement containing thymol, cinnamaldehyde and carvacrol in broiler chicken feed would improve health and meat quality (fatty acid profile), as well as to determine the coccidiostatic and bactericidal potential of the additives. The broiler chickens were divided into five groups: NC – negative control feed; PC – positive control; CU – with 50 mg/kg of curcumin, PHY – 100 mg/kg phytogenic; and PHY + CU, a combination of both additives at 50 mg/kg (curcumin) and 100&nb...
Source: Microbial Pathogenesis - Category: Infectious Diseases Source Type: research
The host-defense peptide (HDP) piscidin 1 (P1), isolated from the mast cells of striped bass, has potent activities against bacteria, viruses, fungi, and cancer cells and can also modulate the activity of membrane receptors. Given its broad pharmacological potential, here we used several approaches to better understand its interactions with multicomponent bilayers representing models of bacterial (phosphatidylethanolamine (PE)/phosphatidylglycerol) and mammalian (phosphatidylcholine/cholesterol (PC/Chol)) membranes. Using solid-state NMR, we solved the structure of P1 bound to PC/Chol and compared it with that of P3, a les...
Source: Journal of Biological Chemistry - Category: Chemistry Authors: Tags: Membrane Biology Source Type: research
Publication date: Available online 1 December 2019Source: Journal of Functional FoodsAuthor(s): Vivien Deloule, Claire Boisset, Dalil Hannani, Antonia Suau, Audrey Le Gouellec, Jadwiga Chroboczek, Cyrille Botté, Yoshiki Yamario-Botté, Christine Chirat, Bertrand ToussaintAbstractWe have analyzed the prebiotic effect of softwood hemicelluloses on specific bacterial species in vitro and on microbiota diversity and metabolism in healthy mice in vivo. The ethanol-precipitated glycans from the softwood hemicellulose autohydrolysate were able to stimulate in vitro the growth of Bifidobacterium adolescentis, but to a...
Source: Journal of Functional Foods - Category: Nutrition Source Type: research
Publication date: Available online 12 September 2019Source: SteroidsAuthor(s): Zhangliang Zhu, Chao Li, Xiaotao Cheng, Ying Chen, Menglu Zhu, Xin Liu, Shuhong Mao, Hui-Min Qin, Fuping LuAbstractThe C-7 cholesterol dehydrogenase (NVD), which converts cholesterol to 7-dehydrocholesterol (7-DHC) by 7,8-dehydrogenation, plays a pivotal role in the metabolism of cholesterol and steroid intermediates. The NVD protein was successfully expressed in insect Sf9 cells. To reduce the production cost for industrial application, the NVD gene was cloned into E. coli BL21(DE3). However, the His-tagged NVD protein showed poor binding to Ni...
Source: Steroids - Category: Drugs & Pharmacology Source Type: research
More News: Cholesterol | Diets | Gastroenteritis | Nutrition | Organic | Physiology | Study | Zoology