Diagnostic clues in avian pathology - Infectious and parasitic | Veterinaria Digital

Diagnostic clues in avian pathology - Infectious and parasitic

04/10/2016 Parasite poultry

Diagnostic clues in avian pathology - Infectious and parasitic

The purpose of this document is to provide the correct diagnosis of the most common diseases in poultry, using dichotomous keys based on the signs and lesions observed in animals.

This document is divided into three main sections: external symptoms very noticeable, external symptoms but with clear organic lesions with impaired reproduction and incubation. Within these three categories is a sub-classification that allows deepening the diagnosis according to the affected system.

It is necessary to note that in this work are presented a diagnostic practices clues and may not include all the symptoms that can present these diseases, but the most characteristic. In certain cases, additional diagnostic techniques use (such as microbiology, ELISA or PCR) or rely on the expertise of the pathologist to get at the final diagnosis.

While diagnosing, we must not forget that the same body can coexist different diseases, fact which complicates diagnosis. Moreover, most of infectious agents depend on other factors to cause disease, whether environmental, nutritional or genetic.

1. Very noticeableeExternal symptoms.

1.1 Respiratory

1.2 Digestives

1.3 Lameness - Arthritis

1.4 Nerviosos

1.5 Head

1.6 Skin

2. WITHOUT EXTERNAL SYMPTOMS BUT WITH CLEAR ORGANIC INJURY

2.1 Liver

2.2 Cardiac

2.3 Renales

2.4 Fabricio bag

2.5 Blood cups

3. WITH REPRODUCTION ALTERATIONS AND INCUBATION

3.1 Proper reproductive system

3.2 Related with shells

3.3 Related to the incubation

3.4 Low Fertility

4. WITHOUT VERY NOTABLE EXTERNALSIGNS 

BREATHING

Essentially respiratory.

1. Essentially with high respiratory injuries:

  - CORIZA

  - SINUSITIS

2. Lesions in the larynx, trachea or syrinx:

- LARYNGOTRACHEITIS

- POX

- NEWCASTLE

- BRONCHITIS

- ASPERGILLOSIS 

3. Lesions in the lungs and air sacs:

- MYCOPLASMOSIS

- ASPERGILLOSIS

- COLIBACILIOSIS

- CORIZA - PNEUMONIA

 With another notable signs as respiratory

1. Septicemia

 

a)

COLERA

b)

COLIBACILOSIS

2. Nervious

 

c) with hemorrhages

NEWCASTLE

3. Skin

 

a)

DERMATITIS

4. Bursa of Fabricius

CRYPTOSPORIDIOSIS

5. Kidney damage:

 

d) changes in the egg shell:

INFECTIOUS BRONCHITIS

6. in head

 

e) with middle respiratory tract lesions:

POX

f) with upper respiratory tract lesions:

CORYZA

7. Lameness

 

a) with infections in chickens:

MYCOPLASMOSIS

8. Hepatic

COLIBACILOSIS

9. Cardiac

COLIBACILLOSIS

 Digestives

Essentially digestive

 

1. With injuries mouth-buche

CANDIDASIS 

2. Proventriculus and gizzard lesions:

CANDIDASIS-MICOSIS

 

NECROTIC ENTERITIS

With gut injuries

 

1. with visible presence of parasites

INTESTINAL PARASITES

2. no visible parasites

 

  1. Generalized enteritis:

MYCOTOXIN

 

AMEBIASIS

 

UNSPECIFIC ENTERITIS

 

SALMONELLA

  1. Regionalized enteritis:

VIRAL ENTERITIS TURKEY

 

COCCIDIOSIS

 

CANDIDASIS

 

SALMONELLA

 

NECROTIC ENTERITIS

 

HEXAMITIASIS

With other signs such noticeable as digestive

 

1. Hepatic

 

a)

HISTOMONIASIS 

b)

NECROTIC ENTERITIS

c)

SALMONELLA

d)

MYCOTOXIN

2. Lameless

 

a)

SALMONELLA

3. Breeders

 

a)

SALMONELLA

b)

MYCOTOXIN 

4. Nervious

 

a) with ventricular injury

NEWCASTLE

b) with hepatorrea injury

MYCOTOXIN

5. Renal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Without external symptoms notables but with clear organ damage Part 2

Hepatic

1. Essentially hepatic

 

Specific lesions in the form of abscess or tumor:

MAREK

 

HISTOMONIASIS

 

ESTAFILOCOCIA

 

TUBERCULOSIS

 

LEUCOSIS

2. Diffuse lesions with hypertrophy

FATTY LIVER

 

MYCOTOXIN

 

ERYSIPELAS

 

CLAMDIOSIS

 

VIRAL HEPATITIS

 

HEPATITIS

3. Injury hepatic peri

COLIBACILOSIS

With other notable lesions as hepatic injury

 

  1. Digestives

 

a)

NECRITIC ENTERITIS

b)

MYCOTOXIN

c)

SALMONELLA

d)

HISTOMONIASIS

  1. Nervious

 

a)

MAREK

  1. Respiratory

 

a)

COLIBACILOSIS

In head

 

a)

ERYSIPELAS

Kidney

 

a)

FATTY LIVER

b)

LEUCOSIS

Haemorrhages

NECRITIC ENTERITIS

CARDIAC

  1. Essentially cardiac

 

Warty endocarditis in mitral valve:

STREPTOCOCCAL

Myocarditis:

LISTERIOSIS

With other lesions as notables as cardiac

 

Respiratory

 

a)

COLIBACILOSIS-CDR

Kidney

  1. Esencialmente kidney

 

With other lesions as notables as dilatation and renal pallor

 

Digestives:

 

a)

NECRITIC ENTERITIS

b)

AFLATOXINS

Hepatics

 

a)

FUTTY LIVER

Bursa of Fabricius

 

a) with bleeding

GUMBORO

b) with liver tumors:

LEUCOSIS

Respiratory

 

With reproduction problems:

INFECTIOUS BRONCHITIS

BURSA OF FABRICIO

  1. Essentially bursa

 

With other lesions such notables as busrsa

 

liver tumors

 

a)

MAREK 

b)

LEUCOSIS

Hemorrhage

 

a) with renal injury

GUMBORO

Resiratory

 

a)Essentially tracheitis

 

BLOOD VESSELS

  1. Essentially vascular lesions

 

With other notable lesions as vascular

 

Accompanying generalized bleeding.

 

a) deficient coagulation, arthritis, respiratory:

ANGER

b) deficient coagulation hepatorrea:

AFLATOXICOSIS

c) muscle bleeding, renal bursitis:

GUMBORO

Accompanying localized bleeding

 

a) In proventriculus and nervous:

NEWCASTLE

b) In proventriculus and enteritis

NECRITIC ENTERITIS

c) in gizzard

CANDIDIASIS MICOSIS

d) In intestine and hepatorrea

NECRITIC ENTERITIS

e) In various areas of intestine

COCCIDIOSIS

Accompanying petechiae

 

a) generalized and respiratory

SEPTICEMIA

b) in heart, fat and perihepatitis

COLIBACILOSIS

c) in heart, fat and nervous

NEWCASTLE

Anemic

 

a)

PARASITIC ANEMIA

3. WITH ALTERATIONS OF REPRODUCTION AND INCUBATION

     3.1 ESSENTIALLY RELATED TO REPRODUCTION

1. With ovarian lesions

A) with digestive process - SALMONELOSIS

B) tumor type - TUMORS - SARCOMA

2. With oviduct injuries:

A) coligranuloma type - COLIBACILOSIS

B) oviduct ligament tumors - LEIOMA TUMORS

C) with digestive process - SALMONELOSIS

3.2 ESSENTIALLY MANIFESTED BY EGG SHELL

          1. Deformed eggs - INFECTIOUS BRONCHITIS

          2. Deformed eggs and other shelled eggs - CAIDA PUESTA

 3.3 ESSENTIALLY RELATED TO INCUBATION

1. Endogenous Infections - EGG INFECTIONS

2. Exogenous infections - CONTROL INCUBATE ROOM

3. Chick Infections

A) - ONFALITIS

B) with arthritis and digestive - SALMONELOSIS

C) with arthritis and respiratory - MICOPLASMOSIS

 3.4 LOW FERTILITY

a. With digestive, nervous and hepato - renal - MICOTOXICOSIS

 

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