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The effect of coffee husks used as pellet bedding material on the intestinal barrier, immune-related gene expression and microbiota composition in the broiler chicken caecum
2024
Biesek Jakub | Dunisławska Aleksandra | Kozdruń Wojciech
Using coffee husks as waste material for bedding contributes to sustainable development. A sustainable choice of bedding has also, however, to be a safe choice for poultry. The study analysed immune-related gene expression in the intestinal mucosa and indicator bacteria in caecal content collected from broiler chickens bedded on material with coffee husk addition.
Mostrar más [+] Menos [-]Caecal microflora composition in broilers fed sorghum based diets containing feed enzymes
2016
Asad, S. | Bryden, W. L. | Maguire, A. | Faizah H. M. S. | Klive, A. V. | Li, X.
This study was conducted to investigate whether dietary enzymes alter the caecal microbial profile of broilers fed sorghum-based diets. Four sorghum-based diets (918 g sorghum/kg diet) were prepared. One was the control diet and three had enzymes (xylanase, phytase andprotease) added. Broilers, 35-day-old, were reared (8 birds/cage) in an environmentally controlled shed and randomly allocated to replicated (n=4) assay diets and free access to feed and water all time. On day-42, birds were euthanized and caecal contents collected, pooled on a per/pen basis and frozen (-20 °C). The DNA was extracted from caecal samples using a bead-beating protocol and the V2V3 regionof the bacterial 16S rRNA gene amplified by PCR. Amplicons were separated on sequence difference using Denaturing Gradient Gel Electrophoresis (DGGE) and microbial profiles generated and compared.The DGGE profiles, when analysed, indicated that there was approximately 80% similarity between caecal microflora in all types of the diet treatments. This suggests that there was no overalldifference between any of the profiles and therefore the addition of different types of feed enzymes in a sorghum-based diet had no impact on the overall composition of the broiler caecal microflora.
Mostrar más [+] Menos [-]Post mortem findings in a stranded Bryde’s whale on the East Coast of Peninsular Malaysia
2013
Azman S. | Fatiah M. A. | Inirah C. I. | Ishak S. | Azizul M. O. | Wan S. | Zainal A. | Noorulhayatunofuz Y. | Kamaliah G. | Gunalan S. | Chandrawathani P. | Minah O.
A detailed post mortem was carried out on a male Bryde’s whale
Balaenoptera brydei, a cetacean of suborder Mysticetes, with a wide geographical distribution. The stranded whale, weighing approximately 3.5 metric tons was found beached along the Pekan Nenasi River, Pahang in East Coast of Malaysia facing South China Sea. Gross pathology showed severe hemorrhagic gastritis, probably
due to foreign material found compacted in the multichamber stomach, severe congestion in the various vital organs due to toxemia, and severe endoparasite burden in the intestine. Thousands of Digeneans
were found in both the caecum and colon. Morphological identification was carried out on these parasites which were identified as Ogmogaster species. As co parasites, the acathocephalan worms Falsifilicollis species was also detected in the large intestine. Histological examination indicated severe bronchointerstitial embolic pneumonia, chronic interstitial
hemorrhages, intra alveolar septa thickening in lung tissue; chronic hepatic interstitial hemorrhage, hepatocellular and centrilobular degeneration on the liver tissue; renal tubular and glomerular
necrosis in kidney tissue; splenic necrosis and hemorrhages; intestinal mucosal layer necrosis and severe intestinal villi necrosis. The continuing survival of Bryde’s species whale is precarious, because of disregard for appropriate measures for their
conservation and to conduct appropriate study for the cause of death.
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