Poultry B25 Flashcards
cause of early mortality of day old chick
poor environment - temp, humidity, stock density
infection - e. coli , salmonella
non infectious - poor microelements/ vits/ supply in yolk
when does acute death syndrome occur
week 3-4
clinical sign of acute death syndrome
sudden
found on backs after wing beating convulsion
at risk for acute death syndrome
broilers
turkey hybrids
60-80% males
pathophys of acute death syndrome
decreased heart function
circulatory collapse
ventricullar fibrillation
predisposition of acute death syndrome
genetics
intensive fattening (allometric growth)
prevention of acute death syndrome
day long feed restriction on day 20
another name for malabsorption syndrome
runting- stunting/helicopter
malabsorption syndrome occurs on day
4-7
symptoms of malabsorption syndrome
growth depression
lack of pigmentation
leg weakness
early mortality
diarrhoea
helicopter feather appearance (incomplete, twisted)
risk groups of malabsorption syndrome
broiler and turkey hybrids
cause of malabsorption syndrome
mycotoxins
conseqence of malabsorption syndrome
insufficient enzyme activity
treatment of malabsorption syndrome
vitamins in water supply
another name for ascites
water belly
oedema disease
pulmonary hypertension
symptoms of ascites
liquid in abdomen
blue-grey skin
die on backs
risk groups of ascites
broiler chicks due to intense fattening
genes
mycotoxins
pathophys of ascites
increased vascular pressure
right sided heart pressure
consequence of ascites
cardiac overload
enlarged right ventricle
stagnation of blood
high venous pressure
prevention of ascites
no treatment
only less intense feeding
fatty liver haemorrhagic syndrome predisposition
high producing layers
increased carb and increased egg production leading to increased oestrogen in blood
symptoms of fatty liver haemorrhagic syndrome
low egg production
circ collapse
subscapular haemorrhage
fat accumulation in hepatocytes
treatment of fatty liver haemorrhagic syndrome
replace starch with oils
cause of fatty liver haemorrhagic syndrome
increased de novo lipid synthesis
cage layer fatigue
osteoparalysis caused by Ca metabolism disorders
death in cage layer fatigue
starvation
dehydration
breeds in cage layer fatigue
high producing layers
treatment of cage layer fatigue
ca
vit d
vit c
predisposition of skeletal disorders
genotype
intense fattening
decreased minerals
antinutritives
rickets
rubbery bones
decreased vit d, ca, k
inadequate Ca:P ratio
malabsorption
failure of minerisation
perosis
long bone
poor growth
widening of joint ortwisting of distal en of tibia
perosis is due to
decreased choline, biotin, pydiroxine, folic acid, manganese
torsion of tibia occurs in
fast growing broilers
torsion of tibia due to
growth rate
weight
genetics
exercise
balance btw growth and malnutrition
dyschondroplasia
abnormal cartilage development in prox end of tibia
dyschondroplasia due to
growth rate
genes
Ca:P
metabolic acidosis
Cu deficiency
fusarium in feed
