A three year old, male, Dachshund dog, weighing 10 Kg was presented to Veterinary College Hospital, Hassan with the history of snake bite (Russell’s viper). On physical examination, animal was dull and depressed, face was swollen and fang marks were observed on the right side of the face and blood tinged fluid was oozing from the bitten area. Animal was evincing pain on palpation of swollen area. Haemato-biochemical findings were within the normal range except for thrombocytopenia. The case was diagnosed as snake envenomation and treated with polyvalent anti snake venom intravenously, along with 100 ml of 0.9 per cent normal saline, dexamethasone and antibiotics for 5 days. Animal made uneventful recovery after 5 days of treatment. 

The  breeding  values  of  51  Sahiwal  sires  were estimated from the actual and predicted FL305DMY by applying four sire evaluation methods viz., least squares, simple regressed least squares, best linear unbiased prediction and derivative free restricted maximum likelihood. The derivative free restricted maximum likelihood method had lowest error variance for both actual and predicted first lactation 305-days milk yields and it was considered to be the most efficient method. The BLUP method was second efficient  followed by LSM and SRLS method.

Helminth parasites cause a wide variety of debilitating and frequently fatal diseases in animals. Paramphistomosis caused by the paramphistome Cotylophoron cotylophorum constitutes a major group of disease in domestic ruminants. The anthelmintic activity of Syzygium aromaticum on the motility and acetylcholinesterase (AChE) activity of the digentic trematode Cotylophoron cotylophorum was studied in vitro. The flukes were exposed to various concentrations of hexane, choloroform, ethyl acetate and ethanol extract of Syzygium aromaticum and the motility and mortality of the parasite were observed. As ethanol extract was very effective, further studies were carried out with five different sub lethal concentrations (0.005, 0.01, 0.5, 0.1 and 0.5 mg/ml) of ethanol extract of Syzygium aromaticum (SaEE). The electronic measurement of the motility of the treated parasites clearly indicate the direct impact of the drugs on the motility of the parasite. Maximum inhibition in the motility (86.27%) and AChE activity (86.86%) was observed in 0.5 mg/ml after 8h of exposure. Acetylcholinesterase (AChE) is an enzyme which is involved in neurotransmission. It is present in the cholinergic synapses in the central nervous system as well as in neuromuscular synapses where it rapidly hydrolyzes acetylcholine. Inhibition of AChE in the parasite results in muscular paralysis and the parasite lose its biochemical hold fast and get expelled from the host.

This study was conducted to assess the effect of dietary supplementation of vitamin E and selenium on Japanese quail broilers. This trial was conducted in 525 Japanese quail birds from day- old to five weeks of age. Experimental birds were randomly divided into seven groups viz.T1Control:  Basal diet (standard Japanese quail ration), T2 Basal diet with vitamin E 150mg/kg, T3 Basal diet with vitamin E 300 mg/kg, T4 Basal diet with selenium 0.3mg/kg, T5 Basal diet with selenium 0.6mg/kg,T6 Basal diet with combination of vitamin E 150mg/kg and selenium 0.3mg/kg, T7 Basal diet with combination of vitamin E 300mg/kg and selenium 0.6mg/kg. Dietary supplementation with the combination of vitamin E 300mg/kg and selenium 0.6mg/kg resulted in significantly higher body weight, better feed efficiency, livability percentage and also enrichment of alpha-tocopherol and selenium level of liver, thigh and breast muscles in the Japanese quail broilers.

Diet of mud crab S.tranquebarica consists of crustaceans, mollusks, fish remains, detritus, debris and undigested flesh. Quantitative analysis of the gut contents contributed 53.18% crustaceans, 24.69% molluscan remains, 16.91% fish remains and 3.02% & 1.23% of detritus and debris respectively. The study indicated that this species is primarily predators of sessile and slow moving benthic macro invertebrates. The presence of detritus, debris and undigested flesh items in the stomachs suggested that the crabs are detritivorous consuming fresh and decaying flesh of all kinds. The sex wise and size wise of diet in these crabs may be largely due to relative abundance of prey species in the habitat or related to change in cheliped strength and foraging behaviour.

This study on the employment and income of fishermen in the nonmechanized fishing craft categories of Pudukkottai District, Tamil Nadu was carried out with the specific objectives of estimation of costs per fishing trip, seasonal employment and identification of the factors determining quantity of fish catch. The sample size was 90 fishermen respondents equally distributed among canoe, vallam and FRP boat operating villages. Descriptive analyses were used to estimate the items of costs and returns, pattern of employment and levels of net income per fishing trip for different fishing seasons. The average annual fishing days of employment was 243, 138 and 136 for canoe, vallam and FRP boat categories, respectively. The overall mean gross income per fishing trip was r. 1843.42, r.2444.77 and r. 2116.97 for canoe, vallam and FRP boat categories, respectively.

The present investigation was carried out on 25,499 weekly test day milk yield records of first lactation pertaining to 593 Sahiwal cows spread over 49 years located at National Dairy Research Institute, Karnal, India. The comparison of three lactation curve models viz, quadratic model, gamma type function and mixed log function was made in the present investigation. Mixed log function described the best fit with highest coefficient of determination (97.9%) with lowest value of root mean square error (0.025 kg) value. The peak yield of 8.08 kg in 8thweek of lactation was observed by mixed log function. The closeness of the curves of mixed log function and gamma type function with the observed lactation curve was of the same order of magnitude. The least coefficient of determination (77.8%) was observed in quadratic model with maximum root mean square error (0.081 kg). The gamma type function when compared to mixed log function, explained low peak yield and it is recommended that this function can give best fit for the low yielding cows.

An experiment was conducted on 18 un-castrated crossbred (Beetal x Assam local) kids of 3-4 months of age to study the effect of shed roof colour and bedding materials on growth performance during winter season. Three groups of six kids in each were housed in three sheds: T1 (shed roof painted with black colour on top and white colour inside and paddy straw bedding material mixed with hydrated lime, T2 (shed roof painted with black colour on top only and paddy straw without any treatment and T3 (shed roof without any colour and bedding material). The shed T1 and T2 were covered with hessian clothes except the ventilators. The roof shed painted with black colour on top and white colour inside along with hydrated lime mixed bedding material (T1) might have provided better and comfortable micro environment both in terms of optimum temperature and hygienic condition that resulted in significantly (P<0.010) higher body weight in kids (9.59 ± 0.20 kg) than T2 (9.15 ± 0.17 kg) and T3 (8.96 ± 0.0.33kg) respectively. 

Microbial quality of air in a dairy processing plant was evaluated to ascertain the contribution of air as a source of contamination and spoilage of milk and milk products. The mean total aerobic counts obtained in the air by sedimentation method were 32.66 ± 3.82, 25.32 ± 4.17 and 33.36 ± 3.53 cfu/m 2 in raw milk reception dock, pasteurization room and product preparation room respectively. The respective mean total coliform counts were 1.52 ± 0.14, 0.66 ± 0.08 and 0.99 ± 0.16 cfu/ m2. Total coliform count observed in the raw milk reception dock was significantly higher (P< 0.01) than the other areas.  The mean Staphylococcal counts were 2.52 ± 0.10, 3.84 ± 0.31and 5.82 ± 0.30 cfu/ m2. The product preparation room showed highest mean Staphylococcal counts followed by pasteurization room and raw milk reception dock.  The mean yeast and mould counts obtained were 5.42 ± 0.39, 3.84 ± 0.31and 5.82 ± 0.30 cfu/ m2  in raw milk reception dock, pasteurization room and product preparation room respectively. Effect of fumigation on the microbial quality of air in the dairy processing area was also studied by comparing the microbial load in the air before and after fumigation. Fumigation practice followed in the dairy processing area was highly effective against total aerobic organisms, coliforms, and Staphylococci but not very effective in the case of yeast and moulds.

Investigation was carried out in response to a report of mortality among Jersey crossbred dairy cattle at Therkumedu village, Tirunelveli district which were purchased from Chittoor district, Andhra Pradesh. Clinical examination was carried out in 38 animals. Most of the animals showed signs of general weakness, dullness, anaemia, icteric mucus membrane, lymphadenopathy, acariasis, bruxism, debility and passing semisolid faeces  coated with mucus. Blood smear examination revealed the presence of T. annulata piroplasm and A. marginale inclusions. All the affected animals were treated with Buparvaquone @ 2.5 mg/kg and Oxytetracycline @ 20 mg/kg for 7 days supported with parenteral haematinics (Tribivet) and liver extract. Control of ectoparasites was effected with cypermethrin @ 0.2 per cent as external application and 0.4 per cent spray in animal sheds. All the treated  animals recovered slowly and became normal.