(a) Discuss in detail the slaughter techniques, meat inspection and preservation of poultry meat. (20 marks) (b) Define…

(a) Slaughter, Inspection, and Preservation of Poultry Meat Pre-slaughter handling is paramount to meat quality; birds must be rested, kept off feed for about 8–12 hours (water allowed) to empty the gut, and transported with minimal stress to prevent bruising and poor bleeding. Stunning is the first step in slaughter, primarily achieved through electrical stunning (single or double phase) or controlled atmosphere stunning using CO2 mixtures. In electrical water-bath stunning, current passed through the shackled bird induces immediate unconsciousness, ensuring the bird is insensible before bleeding. Following stunning, birds are hung by their legs and bled via neck incision to remove blood efficiently, which is vital for shelf-life. Bleeding (about 2–3 minutes) is followed by scalding (soft scald about 50–53°C or hard scald about 60°C), mechanical plucking, removal of head, shanks and oil gland, evisceration, washing and chilling.

Meat inspection is bifurcated into ante-mortem and post-mortem stages. Ante-mortem inspection involves checking live birds for signs of disease, such as respiratory distress or lethargy, to identify potential outbreaks of notifiable diseases like Newcastle Disease or Avian Influenza. Post-mortem inspection is conducted on the carcass, focusing on the viscera (heart, liver, lungs, and intestines) for pathological lesions, abscesses, or foreign bodies. Carcasses are also inspected for bruises, broken bones, or contamination.

Preservation relies on temperature control and packaging. Chilling to 0–4°C slows microbial growth, while freezing at -18°C or lower halts enzymatic activity for long-term storage. Modified Atmosphere Packaging (MAP) extends shelf life by replacing air with nitrogen or carbon dioxide, inhibiting aerobic spoilage organisms. Curing, smoking and canning are used for value-added products, and processing must follow FSSAI hygiene and licensing requirements.

(b) Homogenisation of Milk Homogenisation is a mechanical process that reduces the size of milk fat globules to ensure a uniform dispersion, preventing cream separation. It is achieved using a high-pressure homogeniser, typically a piston-plunger type. Milk is preheated to approximately 60–65°C to reduce viscosity, then forced through a narrow valve under high pressure, usually in two stages (about 2000–2500 psi in the first and about 500 psi in the second to break up clusters). The sudden pressure drop causes cavitation and shear forces that break down fat globules to a diameter of less than 2 microns.

The merits of homogenisation include improved physical stability, preventing creaming and ensuring a consistent product texture. It also gives a softer curd and enhances digestibility by increasing the surface area of fat globules, allowing lipase enzymes to act more effectively. Furthermore, it improves the palatability and mouthfeel of milk. However, demerits include increased susceptibility to oxidative rancidity due to the exposed fat surface, which can lead to off-flavors if not properly packaged. Additionally, the process requires significant energy input, increasing production costs, and homogenised milk is more sensitive to light-induced oxidation, cannot be cream-separated efficiently, and loses the visible cream line by which consumers judged richness.

(c) Legislations for Protecting Animal Rights in India The Constitution directs the State to organise animal husbandry and preserve cattle breeds (Article 48) and makes compassion for living creatures a fundamental duty (Article 51A(g)). The statutory framework is anchored by the Prevention of Cruelty to Animals (PCA) Act, 1960, whose Section 11 lists acts of cruelty and which set up the Animal Welfare Board of India. This Act prohibits the infliction of unnecessary pain or suffering and regulates the use of animals for entertainment, transport, and slaughter. The Wild Life (Protection) Act, 1972, protects wild animals and their habitats, prohibiting their hunting and trade. The Bharatiya Nyaya Sanhita, 2023 (Section 325, earlier IPC Sections 428–429) punishes killing or maiming animals, and states have their own cattle-preservation laws.

Specific rules under the PCA Act include the Transport of Animals Rules, 1978 (amended in 2001), which mandate adequate space, ventilation, and rest stops for livestock during transit. The Slaughter House Rules, 2001, prescribe humane slaughter practices, including proper stunning and bleeding, to minimize distress. The Animal Birth Control Rules, 2023 govern sterilisation and vaccination of stray dogs. Courts have shaped the field: Animal Welfare Board of India v. A. Nagaraja (2014) banned jallikattu and bullock-cart races and read the 'five freedoms' into the PCA Act, but in 2023 a Constitution Bench upheld the Tamil Nadu, Maharashtra and Karnataka amendments that permit these events under regulation.