{"id":6463,"date":"2022-03-24T12:03:16","date_gmt":"2022-03-24T11:03:16","guid":{"rendered":"https:\/\/www.globalvetslab.com\/?p=6463"},"modified":"2022-03-24T12:03:17","modified_gmt":"2022-03-24T11:03:17","slug":"monthly-pathology-february-2022","status":"publish","type":"post","link":"https:\/\/www.deltalabs.online\/en\/monthly-pathology-february-2022\/","title":{"rendered":"MONTHLY PATHOLOGY: FEBRUARY 2022"},"content":{"rendered":"\n
\"Haemorrhagic
Haemorrhagic typhlitis in broilers by Eimeria tenella<\/em><\/figcaption><\/figure>\n\n\n\n

General analysis<\/strong><\/h2>\n\n\n\n

Problems related to the importation of raw materials<\/strong> continue to affect countries globally, causing feed to be more expensive. Many producers choose to use poor quality materials<\/strong>, either to lower the cost<\/strong> of feed or due to lack of other options.<\/p>\n\n\n\n

This practice leads to an increase in mycotoxin-related problems <\/strong>and microbial contamination of feed <\/strong>by fungi and bacteria. It also leads to a decrease in productive performance since diets made with poor quality ingredients do not adequately meet the requirements of the animals.<\/p>\n\n\n\n

In the Northern hemisphere<\/strong>, low temperatures have led to an increase in viral diseases<\/strong> outbreaks such as infectious bronchitis and influenza.  In the Southern hemisphere<\/strong>, laying hens have egg quality problems<\/strong> related either to high temperatures, dietary deficiencies, or digestive problems.<\/p>\n\n\n\n

In the pig sector<\/strong>, there is interest in the control of problems caused by Actinobacillus lignieresii<\/em><\/strong>,<\/em> the prevention of digestive and foot problems due to biotin<\/strong> deficiency and the diagnosis of respiratory diseases by examining the lung lesion score<\/strong> in the slaughter plant.<\/p>\n\n\n\n

Analysis by geographic areas<\/strong><\/h2>\n\n\n\n

In the month of February 2022, the following problems were reported according to the geographical region:<\/p>\n\n\n\n

\u00b7\u00a0Asia<\/strong><\/h3>\n\n\n\n

Influenza <\/strong>and adenovirus <\/strong>outbreaks have been reported in broiler farms in Southeast Asia. Coccidiosis<\/strong> is also one of the most prevalent diseases in the continent.<\/p>\n\n\n\n

In pig farms, the advance of African swine fever<\/strong> is particularly concerning, as it is gaining ground and still present in the countries that were affected during the previous months.<\/p>\n\n\n\n

\u00b7 Europe<\/strong><\/h3>\n\n\n\n

In Eastern Europe, adenovirus and avian infectious bronchitis <\/strong>outbreaks, two viral diseases that take advantage of low temperatures to cause infections in birds, have been observed. Cases of haemorrhagic typhlitis<\/strong> due to Eimeria tenella<\/em>, which causes inflammation of the ceca with haemorrhagic-necrotic content and haemorrhagic diarrhea, have also been reported. Another bacterium that causes problems in European broiler farms is Enterococcus gallinarum<\/em><\/strong>.<\/p>\n\n\n\n

Rapid transit<\/strong> is another issue that worries poultry producers and Histomonas meleagridis <\/em><\/strong>is a main concern for turkey farmers.<\/p>\n\n\n\n

Feed and cereals\u2019 mycotoxin contamination is a common problem, especially high levels of deoxynivalenol<\/strong>, ochratoxins<\/strong>, T2 toxin<\/strong> and aflatoxins<\/strong>. In addition, most of the analysed samples have mixed contaminations<\/strong>, which poses an additional risk to animals due to the synergistic effect of mycotoxins.<\/p>\n\n\n\n

\u00b7 Latin America<\/strong><\/h3>\n\n\n\n

In South America, broiler and laying farms affected by infectious toxic hepatoenteritis<\/strong> continue to be reported, where day-old chicks show omphalitis, green and large vitellus and ceca, and a greenish content in the gizzard.<\/p>\n\n\n\n

Vaccine failures <\/strong>in layers are a common problem, which may be related to the high prevalence of avian infectious bronchitis<\/strong>. Some strains produce kidney lesions in layers.<\/p>\n\n\n\n

The mycotoxins with the highest levels are deoxynivalenol and fumonisin<\/strong>, which have been detected in samples of corn, bran and feed.<\/p>\n\n\n\n

\u00b7 Africa<\/strong><\/h3>\n\n\n\n

The problems observed in poultry farms in West Africa are related to the high temperatures and poor feed quality, two factors that lead to internal<\/strong> and external egg<\/strong> quality problems.<\/p>\n\n\n\n

The mycotoxins that have higher levels in raw materials and feed are aflatoxins<\/strong>, which cause the affected animals to bleed.<\/p>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

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