Step 2. Make specific observations and measurements

25 Be aware that some sick cattle will be suffering concurrent diseases such as footrot and IBR and hence may present with a confusing clinical picture. Use timing of observations to advantage:  before feeding — detects uneaten feed  during feeding — detects animals that are low on the pecking order or inappetent or both  post feeding — detects stock not resting and ruminating healthy stock would normally rest and ruminate  post deck washing — detects lameness and limb injures for the short period 15min post deck washing, stock remain standing and legs are clean making it a good time to examine for lameness and injuries – use a torch

4.2 Step 2. Make specific observations and measurements

Make the following specific observations and measurements: Respiratory rate and depth  Note number of breaths per minute, level of respiratory exertion normal, panting, gasping and whether breathing is with mouth open or closed  Changes in respiratory rate and depth are potential indicators of early bloat, pneumonia, pleurisy, heat stress  Respiration rate and panting score as shown in Table 4.1 13 can be useful indicators of heat load in cattle Table 4.1: Breathing condition and panting score for heat stress in cattle Breathing condition Panting score PS Associated respiration rates breathsmin No panting – normal. Difficult to see chest movement 40 Slight panting, mouth closed, no drool or foam. Easy to see chest movement 1 40-70 Fast panting, drool or foam present. No open mouth panting 2 70-120 As for 2 but with occasional open mouth, tongue not extended 2.5 70-120 Open mouth + some drooling. Neck extended and head usually up 3 120-160 As for 3 but with tongue out slightly, occasionally fully extended for short periods + excessive drooling 3.5 120-160 Open mouth with tongue fully extended for prolonged periods + excessive drooling. Neck extended and head up 4 160 As for 4 but head held down. Cattle ‘breathe’ from flank. Drooling may cease 4.5 Variable - RR may decrease 13 Adapted from: Recognising excessive heat load in feedlot cattle. tips tools, Feedlots. Meat and Livestock Australia. Source: www.mla.com.auTipsToolsRecognisingexcessiveheatloadinfeedlotcattlereprintOct2006.pdf 26 Faeces  Note consistency i.e. firm, dry, soft, sloppy, watery, smell i.e. sweet, putrid, colour i.e. black, grey, green and contents i.e. grain, blood, mucus, fibrin.  Changes in consistency and contents are potential indicators of under-eating, overeating, indigestion, infection salmonella, coccidiosis Urine  Note colour of urine i.e. clear, yellow, orange, brown, port wine  Changes in colour are potential indicators of dehydration, fever, muscle damage, tick fever Feed consumption  Feed consumption can be assessed by examining amount of feed remaining in troughs. Routine observations can detect pens but not individual cattle that are not eating.  Average feed consumption for the whole ship is a general indicator of stock comfort but can be overestimated if feed troughs are emptied and cleaned before replenishment. Individual deck or group consumption rates may be able to be calculated.  Note cud chewing, ruminations and nose licking. Healthy, well-fed cattle chew their cud, lick their noses and have strong, regular rumen contractions detectable by observing their left flank. Sick or str essed cattle don’t chew their cud, have weak, infrequent rumen contractions or none at all and dirty noses. Water consumption  Water consumption is usually only able to be calculated from the ships gross water consumption divided by the number of head on board. The figure is a guide but can be an overestimate if water troughs are emptied and cleaned before replenishing. Individual deck or group consumption rates are usually not able to be calculated.  Changes in water consumption are potential indicators of heat or cold stress.

4.3 Step 3. Categorisation of sick cattle into syndrome, and suspected disease or condition