PH12-13: Animal Welfare at Slaughter Flashcards

1
Q

What are the key aspects of animal welfare in Transport?

A
  • No person shall transport animals or cause animals to be transported in a way likely to cause injury or undue suffering to them
  • The means of transport, loading, and unloading facilities are designed, constructed, maintained, and operated so as to avoid injury and suffering and ensure the safety of the animals.
  • THE ANIMALS ARE FIT FOR THE JOURNEY
  • The personnel handling animals are trained or competent to carry out their tasks without using violence or any method likely to cause unnecessary fear, injury, or suffering.
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2
Q

What do you need to be a transporter?

A

No person shall act as a transporter unless he holds an authorisation issued by a competent authority

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3
Q

Define “Fitness for Transport”. What conditions make an animal not fit for transport?

A

No animal shall be transported unless it is fit for the intended journey, and all animals shall be transported in conditions guaranteed not to cause them injury or unnecessary suffering.

Animals that are injured or that present physiological weaknesses or pathological processes shall not be considered fit for transport and in particular if:

  • Are unable to move independently without pain or to walk unassisted
  • Present a severe open wound or prolapse
  • Are pregnant females for whom 90% or more of the expected gestation period has already passed, or females who have given birth in the previous week
  • Are new-born mammals in which the navel has not completely healed
  • Are pigs less than three weeks, lambs less than one week, and calves less than ten days of age, unless they are transported less than 100 km
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4
Q

What is the difference between killing and slaughtering?

A

Killing: any intentionally induced process which causes the death of an animal

Slaughtering: killing of animals intended for human consumption

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5
Q

Define stunning and simple stunning.

A

Stunning: intentionally induced process which causes loss of consciousness and sensibility without pain, including any process resulting in instantaneous death

Simple stunning: methods that do not cause instantaneous death

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6
Q

What is the responsibility of an animal welfare officer? What qualifications do they need?

A

Ensure compliance with the AW regulations

Must have a certificate of competence for ALL operations carried out at the abattoir and the authority to carry out any remedial actions necessary to ensure animal welfare

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7
Q

What is a Standard Operating Procedure?

A

Set of written instructions aimed at achieving uniformity of the performance of a specific function or standard and includes:

  • A schedule of the slaughtering
  • Manufactures recommendations for use and maintenance of stunning equipment
  • Key stunning parameters for each stunning method
  • Checks on the effect of stunning
  • Actions to be taken when an animal is not properly stunned
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8
Q

Who needs a certificate of competence?

A

Any person engaged in:

  • The handling and care of animals before they are restrained
  • The restraint of animals for the purpose of stunning or killing
  • The stunning of animals
  • The assessment of effective stunning
  • The shackling or hoisting of live animals
  • The bleeding of live animals
  • The slaughtering according to religious rites
  • The pithing of any stunned animal
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9
Q

Who will NOT need a certificate of competence?

A

An emergency reason relating to welfare where that person has to slaughter or kill the animal immediately.

For primate domestic consumption

Non-commercial purposes

Disease control

A veterinary surgeon acting in the exercise of his/her profession or a person acting under the supervision of a vet surgeon.

Non-human consumption

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10
Q

Who developed the guides to good practice?

A

British Meat Processors Association (BMPA) and British Poultry Council (BPC)

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11
Q

What records relating to stunning need to be kept and for how long?

A

Records:

  • Manufacturer’s instructions of use and maintenance of any stunning equipment
  • Maintenance records of the stunning and killing equipment
  • Actions taken by the Animal WElfare Officer
  • Records of electrical stunning
  • Records of gas stunning

RECORDS TO BE KEPT FOR ONE YEAR

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12
Q

What are the three different types of stunning methods? Give examples of each.

A

Mechanical

  • Penetrative captive bolt
  • Non-penetrative captive bolt
  • Firearm
  • Cervical dislocation

Electrical

  • Head only
  • Head and body
  • Water bath

Gas

  • CO2 at high concentration (minimum 80%)
  • CO2 in two phases
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13
Q

What form of slaughter is prohibited?

A

Decapatitation

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14
Q

What are the restrictions on cervical dislocation?

A

Only as a backup!

No other method available and same person must not kill more than 70 animals per day.

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15
Q

What is the primary objective to captive-bolt stunning?

A

Induce immediate insensibility by administering a severe blow to the skull of the animal

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16
Q

What is tonic activity?

A

The animal collapses, stops breathing and becomes rigid, with its head extended and its hind legs flexed towards the abdomen

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17
Q

What are the physical signs of an effective stun?

A
  • Animal collapses
  • No rhythmic breathing
  • Fixed, glazed expression in the eyes
  • No corneal reflex
  • Relaxed jaw
  • Tongue hanging out
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18
Q

Why is it essential that the correct cartridge is used for the type of stunner, and the size of the species of animal being stunned?

A

Firing them using smaller charges can lead to inadequate stunning and uneven wear on the equipment itself - leading to failed stuns.

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19
Q

What is a stunning box?

A

Restain cattle for stunning

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20
Q

What are the two basic types of head restraints in stunning boxes?

A

Passive: fitted at the front of the stunning ox and prevent the animal from lowering its head, but do not hold the head fast or involved any moving parts

Active:

  • Neck-yolk: one or two vertical bars which grip the animal’s neck within the stunning box
  • Head-yolk/chin-lift: holds the head rigid outside the stunning box
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21
Q

Where is the best place to stun any animal?

A

Where the brain is closest to the surface of the head and where the skull is at its thinnest

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22
Q

What do you do when you fail to stun? Why do you do this?

A

If an animal is not properly stunned it must be re-stunned immediately. When a captive-bolt enters the skill it causes massive damage and swelling around the wound; the swelling will absorb much of the impact of a second shot and this will mean the shock wave is not as effectively transmitted to the brain.

A repeated shot must always be placed so as to avoid the immediate area of the first shot. It should be placed as close to the correct stunning position as possible - above and to one side.

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23
Q

Where do you stun a cattle with a penetrative captive-bolt?

A

In the middle of the forehead - at the crossing point of two imaginary lines drawn between the eyes and the centre of the base of the opposite horns

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24
Q

Where do you stun a cattle with a non-penetrative captive-bolt?

A

Approx 20mm above the position used for a penetrative captive-bolt

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25
Q

Where to you stun a deer?

A

In the middle of the forehead at the crossing point of two imaginary lines drawn from the eyes to the tops of the opposite ears at a right angle to the skull.

26
Q

Where do you stun horses?

A

In the middle of the forehead about 10mm above where two imaginary lines drawn from the eyes to the opposite ears cross. Tilt the stunner so that the bolt is directed through the upper brain towards the brainstem

27
Q

Where do you stun a polled sheep? a horned sheep?

A

Polled: the muzzle of the stunner should be placed on the highest point of the head, and on the mid-line, aiming straight down

Horned: the muzzle of the stunner should be placed on the midline, behind the ridge between the horns, and aimed towards the base of the tongue.

28
Q

Where should you stun a goat?

A

Place stunner behind the bony mass on the midline and aim towards the base of the tongue.

29
Q

Where should you stun pigs?

A

20mm above eye level on the midline of the forehead aiming towards the tail.

30
Q

Why are pigs difficult to stun?

A

The brain lies deep in the head with a mass of sinuses lying between the frontal bone and the brain cavity. Additionally, older sows and boars may have a ridge of bone running down the centre of the forehead which may prevent the bolt penetrating the brain cavity.

Bleed or Pith IMMEDIATELY to ensure rapid death

31
Q

What blood vessels are you cutting when you bleed an animal?

A

You sever the carotid arteries and jugular veins.

It is important that ALL major blood vessels are severed. If only on carotid artery is cut the animal may take over a minute to die.

32
Q

Where do you stick cattle, dear, and horses?

A

Jugular furrow at the base of the neck. The knife is directed towards the entrance of the chest to sever all the major blood vessels arising from the heart.

33
Q

Where do you stick sheep and goats?

A

Like cattle or close to the head across the throat

34
Q

Where do you stick pigs?

A

Insert a knife in the midline of the neck at the depression in front of the breastbone

Raise the skin with the knifepoint using light pressure and a lifting movement.

When penetration has been made, the knife handle should be lowered so that the blade is in a near-vertical position and pushed upward.

35
Q

How do you stick in the field?

A

Make a deep transverse cut across the animal’s throat at the angle of the jaw. Cut deeply, severing the blood vessels, trachea, and oesophagus, until the blade of the knife touches the spine.

36
Q

What is the maximum stun-to-stick interval for all species in the field?

A

15 seconds.

37
Q

What is the maximum stun-to-stick interval for pigs, sheep, and goats in the abattoir?

A

15 seconds

38
Q

What is the maximum stun-to-stick interval for cattle in the abattoir?

A

60 seconds for penetrative captive-bolt

30 seconds for non-penetrative captive bolt

39
Q

What is pithing?

A

Physical destruction of the brain to ensure rapid death following captive bolt stunning. It involves inserting a flexible wire through the hole in the head made by the captive-bolt. The rod is then thrust towards the tail, through the brain, to the level of the brainstem and, if it is long enough, into the spinal cord.

NOT LEGAL FOR ANIMALS FOR HUMAN CONSUMPTION

40
Q

What is the difference between electronarcosis and electrocution

A

Electronarcosis: stunning with electricity by disrupting normal brain function for a short period. Reversible

Electrocution: killing with electricity by causing cardiac arrest

41
Q

What are the phases of the electronarcosis? How do they physically manifest.

A

Tonic

  • Animal collapses and becomes rigid
  • No rhythmic breathing
  • Head is raised
  • Forelegs extended and hind legs flexed into the body

Clonic

  • Gradual relaxation of muscles
  • Paddling or involuntary kicking
  • Downward movement of eyeballs
  • Urination and/or defecation

Recovery

  • Resumption of normal rhythmic breathing
  • Response to painful stimuli
  • Becomes visually aware
  • Attempts to stand
42
Q

What is the best indication of an effective electrical stun?

A

An exaggerated tonic phase

43
Q

What is the first sign of recovery from an effective stun?

A

A return to normal rhythmic breathing

44
Q

How does electrocution physically manifest?

A

It becomes rigid with slight body tremors then gradually relaxes. There should be no further movement.

45
Q

What is the purpose of stunning?

A

To make an animal insensible to pain until death is caused by bleeding or cardiac arrest.

46
Q

What about the electrical stunning method determines whether an animal is killed or stunned?

A

The current.

47
Q

What are the three categories of electrical stunning and killing equipment?

A

head-only (stun)

Head-to-back (stun-kill)

Head -to-bdoy (stun-kill)

48
Q

What are the two basic types of head-only stun tongs?

A

Scissor or Fork

49
Q

How should head-only stunning electrodes be placed?

A

They must span the brain as directly as possible. Positioning the electrodes anywhere else means that more of the current may flow through lower resistance pathways and not entirely through the brain, thus reducing the effectiveness of the stun.

50
Q

How does a head-to-back stun-kill work?

A

It is carried out by passing a current simultaneously thought the brain and through the heart of the animal.

51
Q

Where should the electrodes of a head-to-back stun-kill be placed?

A

The rear electrode should be placed firmly in the middle of the back above the heart. The front electrode should then be placed on the head level with, or forward of the eyes.

52
Q

How is electrical stunning of cattle achieved?

A

Through three cycles sequentially.

  1. A three-second head-only cycle to stun the animal
  2. 15-second cardiac cycle to induce ventricular fibrillation
  3. 4 second spinal discharge to reduce post-kill convulsions

A back-up captive-bolt stunner must always be available.

53
Q

How do you monitor electrical stunning equipment?

A

All electrical stunning equipment must feature meters, which display the current and voltage; and audible and visible signals to mark the end of the stunning cycle

54
Q

What are the two types of restrainers for electrical stunning?

A

Static: the animals walks into a box to be restrained

Conveyor: automatically presents a continuous line of restrained animals to the operator

55
Q

What is humane slaughter using electrical stunning equipment dependent on?

A
  • Fully trained, competent slaughtermen
  • Selection of equipment capable of delivering the correct current
  • correct setting of equipment
  • Appropriate restraint where necessary
  • Accurate positioning of electrodes
  • Good electrical contact
  • Electrical contact maintained throughout stun duration
  • Delivery of correct current
  • Correct duration of current flow
  • Recognition of an effective stun
  • Backup stunning equipment immediately to hand
  • Ability to stick the animals within 15 seconds
  • Regular daily maintenance fo equipment
56
Q

What is essential for carbon dioxide stunning to be humane?

A

Animals are exposed to the maximum concentration of carbon dioxide as soon as possible and that the dwell time is sufficiently to ensure that animals do not regain consciousness before death.

57
Q

How does carbon dioxide stunning work?

A

Carbon dioxide partly acts by displacing oxygen so the brain cannot function and brain death ensues. However, carbon dioxide also has a direct anaesthetic effect which results in loss of consciousness more quickly than with some other low oxygen gas mixtures.

58
Q

What are the benefits of gas v electrical stunning?

A

Reduced risk of human error

Animals remain in groups

High consistency and effectiveness

59
Q

How does carbon dioxide stunning machine work for pigs?

A

Once in the gondola, the animals are lowered into the chamber.

  • Since CO2 is heavier than air, the max concentration is at the bottom.
  • No more than 30 seconds must elapse after a pig has entered the chamber before it i in a gas concentration of 85% or more

With most systems, there will be at least one stop before the animals reach maximum concentration

  • Each part of the cycle should be no more than 25 seconds
60
Q

How long must pigs be in the CO2 stunning machine? How do you know they are properly stunned?

A

To ensure that animals cannot return to consciousness, a dwell time of two and a half minutes is required.

Pigs show no corneal reflex after exiting the system

61
Q

What visual and physical checks do you do on the pigs to make sure they are being properly stunned in a CO2 stunner?

A