The welfare aspects of breeding cats Patrick Bateson University of Cambridge Why care about the welfare of cats? Rights Attachment Suffering Approaches to Welfare Physiological state - comparable to suffering human Preferences as guides to state Risk averse and inability to cope Poor condition and signs of pain Loss of playfulness Reduction of lymphocytes Telomere length 250 200 Cortisol nmol per litre 150 100 5 0 0 0 5 10 15 20 25 30 Distance hunted (kilometres) Rats’choices Normal Aspirin solution Sugar solution Arthritic joints Colpaert, F.C. et al. (1980) Life Sci. 27, 921-928 Lid-flipping task Card lid Petri dish Mealworm Bateson, M. & Matheson, S.M. (2007) Anim. Welfare, 16 (S), 33-36 Train Test Present intermediate shades: Flip lid Positive shade (0% grey) Palatable mealworm No response 20% grey Nothing 40% grey Flip lid Negative shade (80% grey) No response 60% grey Unpalatable mealworm Nothing Record whether bird flips lid. From Rice, D. (1997) The Complete Book of Cat Breeding. Barron’s Cavalier King Charles Spaniel with suspected syringomyelia Same spaniel after receiving an analgesic From: Bateson, P. (2010) Independent Inquiry into Dog Breeding Cat pain face Held, SDE & Spinka (2011) Animal Behaviour, 81, 891-899 Every technique yields results that can be interpreted in more than one way. A Universal Truth! However, the subset of interpretations for results obtained with one technique may differ from the subset obtained with another technique. Triangulation Physiology Psychology Suffering Ethology Breeding and socialising cats Of those kept as pets in the UK, 8 per cent are pedigree cats. (75 per cent of dogs are pedigree) Breeding optimally Breeding for temperament Socialising Consequences of inbreeding Inbred animals are: Less likely to survive than outbred animals Less likely to reproduce Less fertile and have lower birth rates More likely to have disrupted development More likely to express genetic disorders More likely to have reduced immune system function Coefficient of relatedness Sibling with sibling 0.5 Grandfather with granddaughter 0.25 Cousin with cousin 0.125 These calculations assume a population of infinite size and previous mating has been at random. Most cats are much more inbred than their pedigrees suggest Old Modern Sphynx Scottish Fold Breeding for temperament Turner, D.S. et al. (1986) Animal Behaviour, 34, 1890-1892 Analysis Recognition Execution Sensory Behavioural Aspects of Attachment Input Sensory Behavioural Aspects of Attachment Input Competitive Exclusion Epigenetics and behaviour Genotype Phenotypes Environments Bateson, P. & Gluckman, P (2011) Plasticity, Robustness Development & Evolution. Cambridge. Fetus is sensitive to maternal condition ENERGY INTAKE (MJ) Energy Intake (MJ) 40 Ad Libitum Rationed 30 20 MOTHER WEIGHT IN GRAMS 10 Mother Weight (Gm) 0 20 40 60 80 3400 Ad Libitum Rationed 3300 3200 3100 3000 0 20 40 60 AGE IN DAYS AFTER BIRTH 80 Bateson. Mendl & Feaver (1990) Animal Behaviour, 40, 514-525 OBJECT CONTACTS (% of Obs.) 8 6 Ad Libitum Rationed 4 2 0 21-28 31-42 49-63 AGE IN DAYS AFTER BIRTH 70-84 A unique feature of domestic cat behaviour “Cat in an affectionate frame of mind” From: Charles Darwin (1872) Expression of the Emotions The cat goddess Bastet The tomb fresco of the sun god Ra cutting off the head of a serpent (from about 1300 BC) The Ancient Egyptian priests bred cats in enormous numbers for worshippers at the temples. In the large cat farms o the day, rapid selection for signalling friendly intent with the tail up may have occurred. The Domestic Cat The biology of its behaviour Edited by Dennis C Turner & Patrick Bateson 1988 2000 Cambridge THIRD EDITION 2013