topic 1-3 summer manok

Which bone is most commonly affected in Dyschondroplasia?

Tibiotarsus

Valgus and Varus deformities in broilers typically manifest at what age?

6–8 weeks

Which of the following is NOT a corrective measure for poor feed conversion in broilers?

Routine antibiotic administration without diagnosis

Bacillary white diarrhea is the hallmark clinical sign of which disease?

Pullorum Disease

The 'hock-sitting posture' is a characteristic clinical sign of which condition?

 Runting-Stunting Syndrome

Which Reovirus serotype is specifically associated with arthritis and tenosynovitis in poultry?

Both S1133 and WVU 2937

Which pathogen is described as the most common, most widely prevalent, and economically

most important bacterial pathogen in poultry?

Escherichia coli

In Fowl Cholera, the chronic form is characterized by which of the following signs?

 Sudden death with no prior signs

Salmonella gallinarum causes which specific poultry disease?

Fowl Typhoid

Runting-Stunting Syndrome (RSS) is also known as:

Helicopter disease / Malabsorptive Syndrome

For Bacterial Arthritis caused by Mycoplasma synoviae, which antibiotic class is most

appropriate?

Macrolides/Pleuromutilins (tylosin, tiamulin)

Which of the following is the MOST important route of Pullorum Disease transmission?

Vertical transmission (in ovo)

Antibiotic sensitivity testing is especially important in Staphylococcosis treatment because:

Antibiotic resistance is common in S. aureus

What is the hallmark necropsy finding in Pullorum Disease in adult birds?

Pedunculated ova (oviduct)

Which of the following poultry diseases involves reservoirs in rodents and beetles?

Paratyphoid Salmonellosis

In Colibacillosis, which is NOT a recognized clinical syndrome caused by E. coli?

Caseous rhinitis

Reoviral vaccination in poultry is recommended at:

4–5 days old with booster at 30–40 days

 The gastrocnemius tendon rupture is a severe complication of which disease?

Reoviral Arthritis

Which factor is the primary cause of poor production in layers and breeders according to the

stress-related disorders framework?

All four factors (Age, Nutrition, BCS, Management, Health) contribute equally and interactively

Which diagnostic test is used to confirm Fowl Typhoid in live birds?

Plate agglutination test (positive at 2 weeks post-infection)

Flock mortality in Streptococcosis can reach approximately:

±50%

Spirochetosis in poultry is caused by which organism?

Borrelia anserina

Which Fowl Adenovirus serotype is associated with Hydropericardium-Hepatitis Syndrome

(Angara disease)?

Serotype 4

 Infectious Bronchitis Virus (IBV) belongs to which coronavirus group?

Group 1 Coronavirus

The 'watery whites' characteristic of IBV infection refers to:

Thin and watery egg albumen due to reproductive form

 Infectious Coryza is caused by which organism?

Avibacterium paragallinarum

 Intranuclear inclusion bodies in the tracheal epithelium are pathognomonic for which disease?

Infectious Laryngotracheitis

Which Newcastle Disease strain causes Complicated CRD (CCRD) in association with E. coli?

Mycoplasma gallisepticum combined with E. coli causes CCRD

Aspergillosis in poultry chicks is also known as:

Brooder Pneumonia

Which media is the gold standard for diagnosis of Mycoplasma gallisepticum infection?

 Sabouraud Dextrose Agar (SDA)

 Newcastle Disease can affect humans, causing:

Transient conjunctivitis

 Spirochetosis diagnosis can be confirmed by:

Giemsa-stained blood smears and SPF egg inoculation with spleen homogenate

 What is the primary route of spread for Infectious Coryza?

 Contaminated drinking water and direct contact

What is the approximate virus shedding period following Newcastle Disease infection?

1–3 days

 Fowl Adenovirus infection shows pathological synergism with all of the following EXCEPT:

 Pasteurella multocida

Pump-handle respiration is a clinical sign associated with which disease?

Infectious Laryngotracheitis

Which of the following is NOT a treatment option for Mycoplasmosis (CRD)?

 Ampicillin

The kidney form of IBV is characterized by:

Urate deposits with marked depression

Aspergillus fumigatus infection in poultry results in characteristic lung nodules that appear:

Pale and soft

 Infectious Laryngotracheitis (ILT) is caused by:

Gallid herpesvirus 1

 Egg Drop Syndrome-76 (EDS-76) is caused by

Duck Atadenovirus-1

Egg production decline in EDS-76 can reach approximately:

±40%

Which is the primary lesion site in EDS-76?

 Shell gland and oviduct epithelium

 The 'Classic EDS-76' form involves what type of transmission?

 Feco-oral horizontal spread in flocks

 In brown or tinted egg breeds, EDS-76 infection results in:

 Loss of shell pigmentation giving a 'chalky' appearance

 Prolapse of the oviduct in poultry is best controlled by:

Proper lighting programs during the rearing phase

All of the following are predisposing factors for oviduct prolapse EXCEPT

 Mycoplasma infection

 IBV has approximately how many genotypes, with how many lineages?

 9 genotypes, ~35 lineages

The most important factor in infertility/poor production attributed to 'most problems' in flock performance is

Management

Water chlorination is recommended as a control measure for which poultry disease?

 EDS-76

Regressed ovary on necropsy is a finding associated with:

C. EDS-76

 EDS-76 virus originated from which species?

Turkeys

 The 'watery whites' in IBV reproductive form results from:

 Epithelial damage to the oviduct affecting albumen-secreting glands

 Cross-protection between different IBV serotypes is:

 Little to none — vaccines may not protect against variants

 Which diagnostic serological test is NOT used for Infectious Bronchitis diagnosis?

 Plate Agglutination Test

Endemic EDS-76 results from:

Horizontal infection during the laying period

Which statement about the treatment of oviduct prolapse is correct?

There is no specific treatment; separate and cull when necessary

Infectious Bronchitis diagnosis uses all of the following EXCEPT:

Complement Fixation Test (CFT)

 All of the following can control EDS-76 EXCEPT:

Amprolium administration

A layer flock shows sudden production of soft-shelled and shell-less eggs, with a ±40%

production drop, but birds appear clinically healthy. The MOST likely diagnosis is:

Egg Drop Syndrome-76