Humane Slaughter Methods PDF

HUMANE SLAUGHTER STUNNING DR.SHIMI SHARAF SLAUGHTERING METHODS 1.HUMANE SLAUGHTER-STUNNING 2.RITUAL SLAUGHTER- JEWISH/SHECHITA METHOD MUSLIM/HALAL METHOD SIKH/JHATKA METHOD 3.SCIENTIFIC SLAUGHTER STUNNING It is the act of making animal insensible or un...

HUMANE SLAUGHTER STUNNING DR.SHIMI SHARAF SLAUGHTERING METHODS 1.HUMANE SLAUGHTER-STUNNING 2.RITUAL SLAUGHTER- JEWISH/SHECHITA METHOD MUSLIM/HALAL METHOD SIKH/JHATKA METHOD 3.SCIENTIFIC SLAUGHTER STUNNING It is the act of making animal insensible or unconscious to pain while slaughtering Humane method of slaughter Need for stunning 1.making the animal insensible to pain 2.making the animal immobile 3.to prevent injuries to staff engaged in slaughtering 4.promote animal welfare 5.maintain meat quality The choice of particular method of stunning depends on many factors 1.species 2.breed 3.age of animal 4.intended line speed 5.humane aspects,safety of personnel 6.capital and maintenance costs 7.efficiency of equipment 8.ease of operation 9.effect on carcass and brain 10.religious and legal requirements METHODS OF STUNNING Mechanical method-percussive stunning- Penetrative and non penetrative Chemical/Gaseous method Electrical method Physical method PHYSICAL METHOD A blow on forehead using pole axe or hammer fractures the frontal bone resulting in cerebral concussion The point of blow is the intersection of lines drawn from the base of each horn to the inner corner of eye of the opposite side;brain is under the thinnest portion of skull in this point CHEMICAL METHOD Gas used-carbon dioxide  Exposure time-45 sec Exsanguination=20-30 sec after stunning For the stunning of pigs,following gaseous mixtures are used *30% CO2 and 60% argon or nitrogen *90% argon or nitrogen In both cases,maximum residual concentration of oxygen should be 2%by volume APPARATUS USED FOR GAS ADMINISTRATION 1.OVAL TUNNEL METHOD 600 PIGS/HOUR ; UPTO 113 KG 2.DIP LIFT METHOD FOR PIGS,CALVES,SHEEP 3.COMPACT CO2 STUNNER 4.COMBI COMPACT STUNNER PRINCIPLE-inhalation of CO2 induces respiratory and metabolic acidosis,reduce ph of CSF,inhibits neuronal effects,anaesthetic effects ADVANTAGES 1.carcass is more relaxed ,so dehairing and dressing will be easy 2.less noise and reduced labour equipment 3.pork obtained is free from harmful residues 4.less haemorrhage in muscles 5.more loss of blood from body while bleeding and lowers ph DISADVANTAGES  It does not make the animal unconscious immediately Unconsciousness occurs progressively Birds stunned using gas cannot recover unconsciousness and are killed by suffocation ELECTRICAL METHOD In this method,low voltage alternating current is passed through brain of animals especially pigs,cattle,goats,poultry Applied by 2 electrodes fastened to jaws Minimum time=70-90 V [2-10 SEC] 125 V ,10sec[pigs] PRINCIPLE The current causes massive depolarisation of neurons in brain,resulting in EEG patterns similar to that recorded in humans with generalised epileptic seizure and associated tonic-clonic muscle contractions The position of electrodes should be correctly positioned so that current will pass through the thalamus and cortex,chief sensory centres in brain. ADVANTAGES 1.deep level of unconsciousness 2.loss of sensory awareness DISADVANTAGES method is not always humane haemorrhage in muscles and broken bones if high voltage is used If too low voltage is used,animal may be paralysed, But still conscious of tha pain MECHANICAL METHOD In this method,a device hits an animal's head with or without penetration. PERCUSSIVE STUNNING- Penetrative Non penetrative PENETRATIVE : a hole is formed,brain is not edible as its damaged TYPES-1.CAPTIVE BOLT PISTOL 2.FREE BULLET PISTOL 3.WATER JET STUNNING 4.PNEUMATIC STUNNER CAPTIVE BOLT PISTOL It is operated by means of blank cartridge The goal is to inflict a forceful strike on forehead with a bolt to induce unconsciousness Usual method of stunning cattle In the skull region,gun is placed right angle to forehead leading to rise in intracranial pressure Effective in cattle,sheep,goat  Less effective in pigs FREE BULLET PISTOL A free bullet firearm,used from a long range,should be aimed to penetrate the skull on a frontal position and proceed through the brain into the upper neck,following the line of vertebrae It will cause catastrophic injury to midbrain and brainstem leading to immediate death It should only be used by properly trained personnel PNEUMATIC STUNNER The stunner uses a pointed bolt which is propelled by pressurized air,spring mechanism or a blank cartridge Bolt under pressure 80-100 psi WATER JET STUNNER 0.5 mm water jet pressure 3500-4000 bars Water bath stunner is common in poultry Q. The usual method of stunning cattle is by using [29/2020] A.electrical stunning B. captive bolt pistol C. CO2 anaesthesia D. none of the above Q. The stunning method recommended for the slaughter of adult cattle [214/2015] A.electrical stunning B. penetrative captive bolt pistol C. CO2 gas stunning D. all of the above THANK YOU