A detailed study was undertaken to assess the length - weight relationship of Lethrinus lentjan and Lethrinus nebulosus in Thoothukudi coast. The ‘b’ value of L.lentjan (3.027) and L.nebulosus(2.964) were analysed against ‘3’ with 248 degrees of freedom and the ‘b’ values of both the species of L.lentjan and  L.nebulosus were not significant at 5% and 1% level.

A study was undertaken to assess the economic impact of Rashtriya Krishi Vikas Yojana (RKVY) project run by AICRP on pigs at Tirupati on the livelihoods of beneficiaries of piggery units. The study was carried out in Chittoor, Nellore, Kadapa and Kurnool districts of Andhra Pradesh state. Data were collected from 30 beneficiaries, who were supplied germplasm under RKVY project. These beneficiaries were purposively selected for impact studies since they have completed 3 years of pig rearing and were personally interviewed for collection of data. The constraints that impede the successful management of swine farms were identified and ranked. The most pressing problem of swine farms was the non-availability of Swill feed which is most important ingredient round the year in required quantities. The other equal important constraint was the accessability to institutional credit agencies. Cost of vaccines was another factor in terms of severity as expressed by the farmers. In addition lack of demand for dreessed pork in rural areas, limited availability of breeding stock were identified. Apart from these major problems there were other constraints too affecting the efficient management of swine farms.  

A study was conducted  at Institute of Poultry Production and Management (IPPM), Madhavaram Milk colony, Chennai-51.Three hundred and sixty (360) day-old straight run Nandanam broiler - 2 chicks were individually weighed, wing banded and randomly assigned to three different dietary treatments with two replicates  and reared on deep litter system for a period of 8 weeks. The results showed that supplementation of muti-enzyme at the rate of 500g per ton of feed (T2) in Nandanam broiler-2 ration were significantly higher (P<0.01) than control in weight gain of 2nd, 8th  and 0-8 week of age. The feed consumption and feed conversion efficiency was significantly higher (P<0.01) in control compared to treatment. The livability was highly significant (P<0.01) in T3 than control. The carcass characteristics of live weight, heart, eviscerated, giblet and ready-to-cook weight did not show any significant difference in treatment group than control. The cut-up parts of breast yield were highly significant (P<0.01) in T2 than control. The drumstick yield was significantly higher (P<0.01) in control than treatments. The cut-up-parts of back, thigh, neck and wing did not show any significant difference in treatment than the control, but the value was better in enzyme treated group. It was concluded that the production performance was better in supplementation of multi – enzyme at the rate of 500g/ ton of feed and carcass traits was not significantly different between the treatments.

The brown paper nautilus, Argonauta hians Lightfoot, 1786 was recorded for the first time from Indian waters while investigating the biodiversity of the molluscs of Gulf of Mannar during June, 2011. One specimen of the said species was collected as an incidental by-catch in the trawl catch off Thoothukudi coast of Gulf of Mannar, from India, between 08º 35’ 22.5" N 78º 27’ 40.9" E and 08º 31’ 91.2"N 78º 25’ 32.7"E at a depth of 305-310 m.  

High mortality in a period of one month due to hepatic coccidiosis was reported in a rabbit farm. Typical nodular lesions in liver and unsporulated oocysts of E. stiedai could be detected. Animals were treated with sulphaquinoxyline and diaveridine for five days followed by repetition of treatment after five days. Strict sanitary measures and disinfection of cages by spraying with 10 per cent ammonia solution was adopted. All animals with poor body conditions were removed from the flock and the disease was controlled.

The prevalence of Babesia infection was studied in newly purchased Tellicherry goats from Thalasserry, Kerala State to a private goat farm at Chennai. A total number of 168 goats were examined for the presence of Babesia. The study revealed that 58 (34.5%) goats were infected with Babesia ovis. The prevalence of Babesia infection between males and females and different age groups of goats was non-significant. Infected goats showed varying clinical signs of inappetence, depression, increased respiratory rate, weakness, coughing, nasal discharge, ocular discharge, diarrhea,   body temperature ranging 39.5- 41.2oC and abortion. Blood parameters revealed decrease in total red blood cells (RBC) count, haemoglobin concentration (Hb), Volume of packed red cells (VPRC), platelets counts and increase in lymphocyte and neutrophil count.

The present study was conducted to study the effect of dietary supplementation of vitamin C and nano vitamin C on the serum biochemical profile of Japanese quail during the summer season. The experiment was carried out on 96 day-old Japanese quail chicks which were divided randomly into three treatment groups. Each treatment contained two replicates with sixteen birds per replicate. The experiment was carried out for a period of six weeks during the summer season in May and June. Feed and water were provided ad libitum to study the effect of the inclusion of vitamin C (200 mg/kg) and nano vitamin C (20 mg/kg) on serum biochemical profile of Japanese quail during the summer season. The study revealed that the mean serum levels of total protein, albumin, globulin, HDL cholesterol and SGPT/ALT increased significantly (P<0.01); whereas, serum levels of total cholesterol, LDL cholesterol and triglycerides decreased significantly (P<0.01) in treatment groups supplemented with nano vitamin C. No significant differences (P>0.05) were observed in serum SGOT/AST among treatment groups.

The present study was conducted to assess the efficacy of two oestrus induction protocols on 30 postpartum anoestrus crossbred cows reared by rural farmers of Puducherry region. The cows were randomly divided into Treatment I (CIDR+PGF2α+GnRH; n=15) and Treatment group II (Ovsynch+ CIDR; n=15) with double fixed timed inseminations at 12 and 24 hours post-administration of last GnRH. Oestrus induction response was 100% in both the treatment groups with majority of the cows (80%) in both the treatment groups showed intermediate intensity of oestrus. The mean time to onset of oestrus from the time of removal of CIDR in Treatment I and Treatment II was 43.45 ± 9.21 and 45.81 ± 6.34 h respectively. There is no significant difference in the serum progesterone concentration at the time of AI between Treatment I (0.92±0.26 ng/mL) and Treatment II (0.92±0.18 ng/mL). Though the conception rate was higher in treatment II (40 %) compared to Treatment I (20 %), the difference is not statistically significant. From the present study, it was concluded that Ovsynch in combination with CIDR found to be effective in oestrus induction and conception following fixed timed AI in anoestrus cows under field conditions. 

A two year-old queen cat with unknown mating history revealed absence of clear indication of positive pregnancy but single fluid filled anechoic structure noticed on ultrasonography. Spaying was performed and clear watery sterile fluid in the uterus confirmed it as a case of hydrometra.

We estimated the incidence of clinical mastitis (CM) and antimicrobial agent (AMA) usage for its treatment in an organized dairy farm over a period of six months. The incidence of mastitis at different stages of lactation was also quantified. The incidence of mastitis was higher in Sahiwal cows (9.52%) compared to crossbred cows (3.61%). Among different AMA usage, enrofloxacin (22%), ampicilin with cloxacillin (18.57%), gentamicin (18.29) and ceftriaxone (12.57%) drugs were most commonly used against CM cases. Penicillin group and their combinations (29.43%) was found to be the most commonly used AMA for CM followed by fluoroquinolone (22%), aminoglycosides groups (21.43%) and cephalosporins group (16.86%) of drugs. Tetracyclines (9.14%) and chloramphenicol (1.14%) were least choice as evidenced by less frequent usage. From the findings of the study it may be concluded that the incidence of mastitis was high in Sahiwal cows milked with machine milking system and mastitis animals needed an average of five days treatment for clinical cure. Further, â-lactam group of antimicrobial drugs were predominantly used in mastitis treatment, despite entry of new AMA in the market.