The campaign against ‘Frankenchickens’ is gathering pace. The name refers to types of chicken selectively bred for the cheap meat industry. If a human baby grew at the same rate as one of these chickens, they’d be as heavy as two gorillas by eight weeks old. That’s one of the questions in a new comedy sketch featuring high-profile UK comedians. Project Slingshot released the sketch as part of its £3m ‘Don’t Buy It’ campaign, highlighting the horrors of factory farming. The latest instalment in Project Slingshot’s campaign turns its attention to ‘Frankenchickens’, the fast-growing chicken breeds supplied to major UK retailers…