Browsing by Author "Thirumalaisamy, G"
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ArticleItem Open Access ANALYSIS OF FEED PARTICLE FINENESS(2015) Senthilkumar, S; Vasanthakumar, P; Thirumalaisamy, G; Sasikumar, P; et al.; TANUVASSavings for grinding of feed ingredients can mean a significant difference in the profitability of a feed manufacturing operation. Quantitative value of particle size analysis for ground feed material is “Modulus of Uniformity and Modulus of Fineness”. Modulus of fineness system is somewhat intricate and involves the use of expensive equipments and considerable time. Modulus of uniformity indicates the proportionate amounts of coarse, medium and fine particles in ground feed. The modulus of uniformity is expressed the coarse, medium and fine particles.ArticleItem Open Access CHEMICAL COMPOSITION AND IN VITRO DRY MATTER DIGESTIBILITY OF FODDERS(2015) Thirumalaisamy, G; Senthilkumar, S; Siva, M; TANUVASThe in vitro gas production technique has been frequently used to assess biological values of feeds based on their pattern of accumulated gas when incubated with rumen fluid under anaerobic conditions. The objective of this paper was to describe the procedures of an in vitro gas production technique using a fermentation chamber as previously describe by Tedeschi et al. (2008) and to compare the parameter estimates of in vitro gas production of fodder samples that have been commonly used to describe gas production profile of fodders for ruminants.ArticleItem Open Access COST-EFFECTIVE FEEDING OF POULTRY(2016) Thirumalaisamy, G; Muralidharan, J; Senthilkumar, S, et al.,; TANUVASThe present situation in feeding of poultry is more economical than feeding to other livestock. Using unconventional (low cost) feed ingredients available locally, to formulate the least-cost feed formulation were found to be reduction in the cost of poultry feeds. Using these feed ingredients in feed formulation requires more supplementation of nutrients viz, amino acids, toxin binders, micro nutrients, etc. A significant share of broiler and layer firms were found using amino acids in quantities above the recommended levels with negligible production and negative profitability effects, demonstrating a clear dearth of managerial skill to obtain and utilize information on poultry nutrition. Although several experiments found to be reduces the feed cost and increasing the production performance in the field condition. However the usage of unconventional feed ingredients level is minimum it may be due to presence of anti nutritional factors and digestibility of feed ingredients lower than the conventional one. The shortage of high cost /conventional feed ingredients especially energy and protein feeding stuffs, so utilization of agricultural by products may make a substantial contribution towards better and more economic feeding poultry. This paper deals with reducing the feed cost by using low cost feed ingredients ultimately improve the feed quality and increasing the production performance.ArticleItem Open Access DIRECT FED MICROBIAL AND FUNGAL ADDITIVES IN RUMINANTS(2015) Senthilkumar, S; Thirumalaisamy, G; Siva, M; Sasikumar, P; TANUVASBefore birth, developing animals are sterile in the womb of their mothers. Upon birth, the digestive tracts of all animals are naturally colonized by a variety of microorganisms. Under healthy and non-stressful conditions, “beneficial” microflora colonizes the rumen and lower gut in a symbiotic relationship with the host. Beneficial rumen and gut microorganisms supply nutrients to the host, aid in digestion of dietary nutrients, and compete with potential pathogens. There is good evidence that the bacterial and fungal probiotics are effective in the manipulation of rumen development and function. More recently, growing concern over the use of antibiotics and other growth stimulants in animal feeds, the potential risk of antibiotic residues appearing in meat and milk, and the need for a food supply that is perceived as safe by consumers, has prompted many livestock producers to explore alternative strategies to enhance the overall health and performance of their herd or flock. Direct-fed microbials (DFM), or probiotics as they traditionally have been called, is one such naturally occurring product that has been incorporated into livestock diets in an attempt to accomplish this objective. DFM, particularly yeast cultures, stimulate growth of rumen bacteria in contrast to ionophores and antibiotics, which are toxic to selective bacteria.ArticleItem Open Access Efficacy study of nano meter particle size (NMPS) colloidal minerals and PUFA in Aseel birds under field condition(2021) Vinothraj, S; Thirumalaisamy, G; Alagesan, P; TANUVASThe present study was carried out to study the efficacy of Nano Particle Size Colloidal minerals and PUFA in Aseel bird’s production performance. A total number of 200 chicks were taken and two groups were formed by covering 100 birds each. The selected Poultry farmers were trained on the importance of Mineral Mixture practices in poultry before the experiment. Production parameters (livability, weight gain, and feed consumption) and carcass traits were recorded at the end of 4, 8, 12, 16, and 20 weeks in both groups. The present study demonstrated that feeding of NMPS included feed has improved all the production and carcass characters. Birds getting sufficient minerals such as calcium, phosphorus, trace minerals and polyunsaturated fatty acids at regular time intervals to get maximum productivity.ArticleItem Open Access Exploration of Immunomodulatory Effect of Nilavembu Kudineer Chooranam against Newcastle Disease Virus in Backyard Chicken(2017) Kavinilavan, R; Mekala, P; Raja, MJ; Arthanari Eswaran, M; Thirumalaisamy, G; TANUVASNilavembu Kudineer Chooranam (NKC) was subjected to preliminary phytochemical screening and its immunomodulatory activity was assessed in sixty day-old unsexed backyard chicken divided into six treatment groups of ten each. T1 served as control, T2 was vaccine control, T3 was positive control treated with levamisole, T4 - T6 were administered Nilavembu Kudineer Chooranam (NKC) @ 0.5, 1.0 and 2.0mL/kg body weight respectively for five days before vaccination. The birds (T2 - T6) were vaccinated with oral pellet vaccine (D58 strain) against Newcastle disease virus at the end of 1st, 4th and 8th week and HI titre was evaluated at the end of 4th, 8th, 12th and 16th week in all the groups. Throughout the experiment, the group pretreated with NKC @ 1.0mL/kg (T5) had shown significantly higher titre when compared to vaccine control (T2). The positive control (T3) was numerically better than vaccine control (T2) throughout the study. At the end of 12th and 16th week, the titre of positive control was significantly less than T5. The results revealed that NKC when used @ 1.0mL/kg for 5 days in drinking water before immunization resulted in improvement in immune response in backyard chicken.ArticleItem Open Access Nutritive and Feeding Value of Cottonseed Meal in Broilers – A Review(2016-08) Thirumalaisamy, G; Purushothaman, MR; Kumar, PV; Selvaraj, P; Natarajan, A; Senthilkumar, S; Visha, P; Kumar, DR; Thulasiraman, P; TANUVASCottonseed meal (CSM) is a by-product from cotton oil extraction industry. The protein content of CSM varies depending on the extent of hulling and the oil extraction process. Modern cottonseed processing industries are equipped to decorticate cottonseed and hence the meals obtained are higher in protein and lesser in fibre than the undecorticated cottonseed meal. CSM had low calcium (0.15 - 0.25%) and high total phosphorus (0.95 - 1.71%), essential amino acids like lysine (1.76 - 2.13%), threonine (1.24 - 1.58%) was lower and comparable methionine (0.48 - 0.78%) when compared to conventional protein source viz., soybean meal (SBM). Similarly the mean digestibility coefficient of essential amino acids, dry matter digestibility and nitrogen retention was found to be lower. Gossypol is an anti-nutritional factor that decreases the utilization CSM. The total and free gossypol content of CSM as reported by various authors varied from 1.16 – 1.52 and 0.024 – 0.82 percent respectively. Various studies showed that CSM inclusion in broilers has improved feed intake, body growth and carcass characters. Gossypol binds with epsilon group of lysine, it unavailable to the bird’s utilization and also bind with free iron in the plasma, it causes anaemia, while supplementation of synthetic lysine, iron supplementation has improved blood biochemical profile and their performance. CSM inclusion reduces the cost of feed when compared to other conventional protein sources. Comparatively few researches on the utilization of CSM in poultry nutrition have been undertaken. In this review, the chemical composition, nutrient and feeding value of CSM in poultry are discussed.