Asha Rajini | Tamilnadu veterinary and animal sciences university (original) (raw)
Papers by Asha Rajini
Not Available, Aug 1, 2014
Two hundred and eighty eight Guinea fowls were reared in three types of rearing systems. Ninety s... more Two hundred and eighty eight Guinea fowls were reared in three types of rearing systems. Ninety six Guinea fowls each were housed in well ventilated cage, wire and deep litter respectively, with a sex ratio of 1:3. Both males and females belonged to the same hatch. Each treatment was divided into four replicates of 24 birds in each replicate; they were provided feed and water ad libitum. Hatching eggs from three different rearing systems (cage, wire floor and deep litter) were collected twice a day in separate filler flats identified by varying colours for each treatment and kept apart after initial fumigation. The eggs were later incubated in a forced draft automatic chicken incubator. After 24 days of incubation, the eggs were transferred from setter to hatcher and eggs were placed in pedigree boxes in replicate and treatment wise, to record the respective fertility and hatchability. Birds reared on deep litter system of management recorded significantly (P<0.01) maximum fertil...
Indian journal of poultry science, 2015
Early access to feed acts as a stimulant for functional development of chicken gut. The present s... more Early access to feed acts as a stimulant for functional development of chicken gut. The present study evaluates the in ovo supplementation of amino acids at 18 day (d) of incubation onthe morphological development of the intestinal mucosa in Cobb 400 broiler. A total of 700 fertile eggs with uniform egg weight (68±0.1 g) were sorted out and divided into five treatment groups (control, sham control, arginine, tryptophan, and combination of arginine and tryptophan). At hatch, 540 chicks were randomly selected(108 birds in each treatment)with six replicates of 18 birds each. There was no variation in per cent hatchability among treatment and control groups. Arginine injected group had higher chick weight. In ovo fed combination group showed highest intestinal length followed by tryptophan and arginine on 4th day. With regards to duodenal and ileal length, the combination group showed the longest followed by arginine and tryptophan groups. There was significant difference induodenal (P&...
A feeding trial was conducted to study the beneficial effect of organic and inorganic chromium at... more A feeding trial was conducted to study the beneficial effect of organic and inorganic chromium at different levels. A total of 700, day old Japanese quail chicks were randomly divided into seven treatment groups with four replicates consisting of 25 quail chicks in each replicate. They were provided with feed supplemented with inorganic chromium, organic chromium in the form of chromium with azolla and chromium with yeast at 500 and 1000 ppb levels and a control diet without chromium supplement from day old to fourteen weeks of age. Significantly (p˂0.05) increased number of eggs were obtained in 1000 ppb of chromium with azolla and chromium with yeast supplemented group as 22.19±2.85 and 22.34±2.61 respectively. Hen day egg production was significantly (p˂0.05) higher in 1000 ppb of organic chromium supplemented groups.
Indian journal of poultry science, 2015
A survey was undertaken to study the management practices adopted by the farmers rearing native b... more A survey was undertaken to study the management practices adopted by the farmers rearing native breeder chicken under intensive management system in three district of Tamil Nadu. A total of 45 farms, 15 farms from each district were selected by simple random sampling and the data were collected through a semi-structured interview schedule. The selected farms were classified as small (15 farms), medium (15 farms) and large (15 farms) with the capacity ranged from up to 1500, 1501 to 3000 and above 3000 birds. Multiple batch system was mostly followed and farmers reared their birds under deep litter system with coir pith as a litter material. Asbestos roof with cement flooring was mostly followed and the water used mostly drawn from bore well sanitized with hydrogen peroxide. Brooding of native chicks was mostly done with charcoal up to 14 days. Native breeder chicken was debeaked twice before spiking the flock and the first and second debeaking was at the age of 13 and 95 days respec...
International Journal of Livestock Research, 2017
A study was carried out to assess the effect of semen collection interval and semen characteristi... more A study was carried out to assess the effect of semen collection interval and semen characteristics of ostriches aged four to nine years for a period of 12 months in tropical climate of India. The birds were grouped into two categories viz., four to six and seven to nine years-old. The artificial cloaca was used for semen collection. The ostriches were allowed to mate naturally by following the teaser technique. The overall mean values for semen collection interval,
Calcium and phosphorus are the two major minerals that play an important role in the production o... more Calcium and phosphorus are the two major minerals that play an important role in the production of good quality hatching eggs with high fertility and hatchability. Considering the scarce availability of literature on requirement of calcium and phosphorus for breeder quail, a study was designed to optimize the calcium and phosphorous requirement and to maximize the reproductive performance in terms of fertility and hatchability.
Indian Journal of Animal Sciences, 1998
Japanese quail chicks were fed with 9 each of starter and grower diets containing 240, 260 and 28... more Japanese quail chicks were fed with 9 each of starter and grower diets containing 240, 260 and 280 g of crude protein/kg from 0-3 weeks of age followed, respectively, by 180, 200 and 220 g of crude protein/kg from 4-6 weeks of age; with constant 10.04, 10.88 and 11.72 MJ of ME/kg diet during 0-6 weeks of age, in a 3 x 3 factorial experiment. Dietary crude protein levels of 280 and 200 g/kg were sufficient for optimal growth rate and feed efficiency during 0-3 and 4-6 weeks of age, respectively. While the lowest energy level of 10.04 MJ/kg gave a slightly higher body weight. The mortality rate appeared to be independent of the dietary ME levels. The dietary energy level had little effect all the ready-to-cook yield; while high protein levels (280-220 g/kg) had resulted in higher ready-to-cook yield. Dietary energy and protein levels, their interaction and sex of the quail had significant influence on carcass composition. Serum protein and total cholesterol levels were independent of ...
Indian journal of poultry science, 2012
A study was designed to evaluate the influence of age, sex and rearing system on haematological p... more A study was designed to evaluate the influence of age, sex and rearing system on haematological profile in pearl guinea fowl. Birds were managed in cages and on floor from four to 16 weeks of age. Haemoglobin (Hb) concentration, Packed cell volume (PCV), Total erythrocytes count (TEC) and Total leucocytes count (TLC) were estimated and Mean corpuscular volume (MCV), Mean corpuscular haemoglobin (MCH) and Mean corpuscular haemoglobin concentration (MCHC) were calculated. It was recorded that male guinea fowls, cage system of rearing had significantly higher TEC, Hb, PCV and TLC when compared to counter parts. As age advances, these haematological parameters were not significantly influenced irrespective of sex and rearing system. Hence, it was concluded that sex and rearing system had greater influence on many of the haematological parameters of four to sixteen week old pearl guinea fowl.
Indian journal of poultry science, 2011
An experiment was carried out to assess and arrive at the optimum dietary calcium and phosphorous... more An experiment was carried out to assess and arrive at the optimum dietary calcium and phosphorous levels for Japanese quail breeder diet. Nandanam Quail -3 strain breeder quail were reared from 0-day to 30 weeks of age and in this experiment 22, 18 and 21 per cent dietary protein with 2750, 2650 and 2700 kcal metabolizable energy per kg diet during brooding, growing and breeding were employed. Two levels of 3.0 and 3.3 per cent dietary calcium and three levels of 0.35, 0.40 and 0.45 per cent available phosphorous in the breeder diet were studied in a 2 x 3 factorial design. Even though, hen day egg production was not found to be affected by the different dietary calcium and phosphorous levels in the breeder diet, feed efficiency and per cent hatchability parameters were found to be in favour of 3.0/0.45 and 3.0/0.40 per cent dietary calcium/available phosphorous levels. Considering the economic parameters, feed cost to produce 100 hatching eggs and 100 chicks was found to favour 3.0...
Indian journal of poultry science, 2012
Twenty four Pearl Guinea fowls each were placed in cages and on floor and were maintained under s... more Twenty four Pearl Guinea fowls each were placed in cages and on floor and were maintained under standard managemental conditions. Once every four weeks from the fourth week onwards, blood was collected from these birds up to 16 weeks of age and differential counts were estimated. The results revealed that age had a highly significant (P<0.01) effect on lymphocyte count in Pearl guinea fowl with the younger guinea fowl of 4 and 8 weeks having higher value. Between sexes the female guinea fowl had significantly higher (40.25 ± 1.80) per cent lymphocyte when compared to male (38.49±1.54) per cent. Age had a highly significant effect (P<0.01) on heterophil count in guinea fowl with older birds age groups of 12 and 16 weeks had higher heterophil per cent of 51.71±3.17 and 50.73±3.91, respectively when compared to younger birds. Cage reared birds had significantly (P<0.01) higher heterophil per cent of 52.64±1.88 as compared to floor reared guinea fowls. Males had significantly (...
Indian Journal of Animal Sciences, 2012
Multi-phasic growth theory is that pullet growth is a discontinuous process where 3 distinguishab... more Multi-phasic growth theory is that pullet growth is a discontinuous process where 3 distinguishable growth waves or spurts existed. The third phase, the pronounced ‘pubertal growth spurt’ between 14 weeks and 20 weeks in layer pullets predicts point of lay (Kwakkal et al. 1997). During this transition time the pre-layers nutrient requirement which has plateaued as she approaches a mature pullet weight will now begin to increase and change as well. Hence, traditional method of feeding layer pullets (Bureau of Indian Standards) by offering starter diet up to 8 weeks and grower diet up to 18/20 weeks needs to be reviewed for better productivity and good health. In this regard, a concept of pre-lay feed was introduced in the existing traditional feeding system of Bureau of Indian Standard for layers and a biological experiment was designed and conducted to study the effect of pre-lay feeding strategy during transition period (15 weeks to sexual maturity) on pullet growth and laying perf...
Commercial Japanese quail farming has created a reasonable impact in recent years and many farms ... more Commercial Japanese quail farming has created a reasonable impact in recent years and many farms have been established throughout the country for egg and meat production. At present, Tamil Nadu is one of the leading states in commercial Japanese quail farming in India. One of the critical inputs for commercial Japanese quail farming is cost effective quality day old quail chick. Feed is the major cost factor in production, of which protein is a crucial factor that influences the cost of feed and reproductive performance especially through embryonic mortality during incubation. In this context effect of dietary protein on embryonic mortality is to be explored with respect to reproductive performance of breeder Japanese quail.
Not Available, Aug 1, 2014
Two hundred and eighty eight Guinea fowls were reared in three types of rearing systems. Ninety s... more Two hundred and eighty eight Guinea fowls were reared in three types of rearing systems. Ninety six Guinea fowls each were housed in well ventilated cage, wire and deep litter respectively, with a sex ratio of 1:3. Both males and females belonged to the same hatch. Each treatment was divided into four replicates of 24 birds in each replicate; they were provided feed and water ad libitum. Hatching eggs from three different rearing systems (cage, wire floor and deep litter) were collected twice a day in separate filler flats identified by varying colours for each treatment and kept apart after initial fumigation. The eggs were later incubated in a forced draft automatic chicken incubator. After 24 days of incubation, the eggs were transferred from setter to hatcher and eggs were placed in pedigree boxes in replicate and treatment wise, to record the respective fertility and hatchability. Birds reared on deep litter system of management recorded significantly (P<0.01) maximum fertil...
Indian journal of poultry science, 2015
Early access to feed acts as a stimulant for functional development of chicken gut. The present s... more Early access to feed acts as a stimulant for functional development of chicken gut. The present study evaluates the in ovo supplementation of amino acids at 18 day (d) of incubation onthe morphological development of the intestinal mucosa in Cobb 400 broiler. A total of 700 fertile eggs with uniform egg weight (68±0.1 g) were sorted out and divided into five treatment groups (control, sham control, arginine, tryptophan, and combination of arginine and tryptophan). At hatch, 540 chicks were randomly selected(108 birds in each treatment)with six replicates of 18 birds each. There was no variation in per cent hatchability among treatment and control groups. Arginine injected group had higher chick weight. In ovo fed combination group showed highest intestinal length followed by tryptophan and arginine on 4th day. With regards to duodenal and ileal length, the combination group showed the longest followed by arginine and tryptophan groups. There was significant difference induodenal (P&...
A feeding trial was conducted to study the beneficial effect of organic and inorganic chromium at... more A feeding trial was conducted to study the beneficial effect of organic and inorganic chromium at different levels. A total of 700, day old Japanese quail chicks were randomly divided into seven treatment groups with four replicates consisting of 25 quail chicks in each replicate. They were provided with feed supplemented with inorganic chromium, organic chromium in the form of chromium with azolla and chromium with yeast at 500 and 1000 ppb levels and a control diet without chromium supplement from day old to fourteen weeks of age. Significantly (p˂0.05) increased number of eggs were obtained in 1000 ppb of chromium with azolla and chromium with yeast supplemented group as 22.19±2.85 and 22.34±2.61 respectively. Hen day egg production was significantly (p˂0.05) higher in 1000 ppb of organic chromium supplemented groups.
Indian journal of poultry science, 2015
A survey was undertaken to study the management practices adopted by the farmers rearing native b... more A survey was undertaken to study the management practices adopted by the farmers rearing native breeder chicken under intensive management system in three district of Tamil Nadu. A total of 45 farms, 15 farms from each district were selected by simple random sampling and the data were collected through a semi-structured interview schedule. The selected farms were classified as small (15 farms), medium (15 farms) and large (15 farms) with the capacity ranged from up to 1500, 1501 to 3000 and above 3000 birds. Multiple batch system was mostly followed and farmers reared their birds under deep litter system with coir pith as a litter material. Asbestos roof with cement flooring was mostly followed and the water used mostly drawn from bore well sanitized with hydrogen peroxide. Brooding of native chicks was mostly done with charcoal up to 14 days. Native breeder chicken was debeaked twice before spiking the flock and the first and second debeaking was at the age of 13 and 95 days respec...
International Journal of Livestock Research, 2017
A study was carried out to assess the effect of semen collection interval and semen characteristi... more A study was carried out to assess the effect of semen collection interval and semen characteristics of ostriches aged four to nine years for a period of 12 months in tropical climate of India. The birds were grouped into two categories viz., four to six and seven to nine years-old. The artificial cloaca was used for semen collection. The ostriches were allowed to mate naturally by following the teaser technique. The overall mean values for semen collection interval,
Calcium and phosphorus are the two major minerals that play an important role in the production o... more Calcium and phosphorus are the two major minerals that play an important role in the production of good quality hatching eggs with high fertility and hatchability. Considering the scarce availability of literature on requirement of calcium and phosphorus for breeder quail, a study was designed to optimize the calcium and phosphorous requirement and to maximize the reproductive performance in terms of fertility and hatchability.
Indian Journal of Animal Sciences, 1998
Japanese quail chicks were fed with 9 each of starter and grower diets containing 240, 260 and 28... more Japanese quail chicks were fed with 9 each of starter and grower diets containing 240, 260 and 280 g of crude protein/kg from 0-3 weeks of age followed, respectively, by 180, 200 and 220 g of crude protein/kg from 4-6 weeks of age; with constant 10.04, 10.88 and 11.72 MJ of ME/kg diet during 0-6 weeks of age, in a 3 x 3 factorial experiment. Dietary crude protein levels of 280 and 200 g/kg were sufficient for optimal growth rate and feed efficiency during 0-3 and 4-6 weeks of age, respectively. While the lowest energy level of 10.04 MJ/kg gave a slightly higher body weight. The mortality rate appeared to be independent of the dietary ME levels. The dietary energy level had little effect all the ready-to-cook yield; while high protein levels (280-220 g/kg) had resulted in higher ready-to-cook yield. Dietary energy and protein levels, their interaction and sex of the quail had significant influence on carcass composition. Serum protein and total cholesterol levels were independent of ...
Indian journal of poultry science, 2012
A study was designed to evaluate the influence of age, sex and rearing system on haematological p... more A study was designed to evaluate the influence of age, sex and rearing system on haematological profile in pearl guinea fowl. Birds were managed in cages and on floor from four to 16 weeks of age. Haemoglobin (Hb) concentration, Packed cell volume (PCV), Total erythrocytes count (TEC) and Total leucocytes count (TLC) were estimated and Mean corpuscular volume (MCV), Mean corpuscular haemoglobin (MCH) and Mean corpuscular haemoglobin concentration (MCHC) were calculated. It was recorded that male guinea fowls, cage system of rearing had significantly higher TEC, Hb, PCV and TLC when compared to counter parts. As age advances, these haematological parameters were not significantly influenced irrespective of sex and rearing system. Hence, it was concluded that sex and rearing system had greater influence on many of the haematological parameters of four to sixteen week old pearl guinea fowl.
Indian journal of poultry science, 2011
An experiment was carried out to assess and arrive at the optimum dietary calcium and phosphorous... more An experiment was carried out to assess and arrive at the optimum dietary calcium and phosphorous levels for Japanese quail breeder diet. Nandanam Quail -3 strain breeder quail were reared from 0-day to 30 weeks of age and in this experiment 22, 18 and 21 per cent dietary protein with 2750, 2650 and 2700 kcal metabolizable energy per kg diet during brooding, growing and breeding were employed. Two levels of 3.0 and 3.3 per cent dietary calcium and three levels of 0.35, 0.40 and 0.45 per cent available phosphorous in the breeder diet were studied in a 2 x 3 factorial design. Even though, hen day egg production was not found to be affected by the different dietary calcium and phosphorous levels in the breeder diet, feed efficiency and per cent hatchability parameters were found to be in favour of 3.0/0.45 and 3.0/0.40 per cent dietary calcium/available phosphorous levels. Considering the economic parameters, feed cost to produce 100 hatching eggs and 100 chicks was found to favour 3.0...
Indian journal of poultry science, 2012
Twenty four Pearl Guinea fowls each were placed in cages and on floor and were maintained under s... more Twenty four Pearl Guinea fowls each were placed in cages and on floor and were maintained under standard managemental conditions. Once every four weeks from the fourth week onwards, blood was collected from these birds up to 16 weeks of age and differential counts were estimated. The results revealed that age had a highly significant (P<0.01) effect on lymphocyte count in Pearl guinea fowl with the younger guinea fowl of 4 and 8 weeks having higher value. Between sexes the female guinea fowl had significantly higher (40.25 ± 1.80) per cent lymphocyte when compared to male (38.49±1.54) per cent. Age had a highly significant effect (P<0.01) on heterophil count in guinea fowl with older birds age groups of 12 and 16 weeks had higher heterophil per cent of 51.71±3.17 and 50.73±3.91, respectively when compared to younger birds. Cage reared birds had significantly (P<0.01) higher heterophil per cent of 52.64±1.88 as compared to floor reared guinea fowls. Males had significantly (...
Indian Journal of Animal Sciences, 2012
Multi-phasic growth theory is that pullet growth is a discontinuous process where 3 distinguishab... more Multi-phasic growth theory is that pullet growth is a discontinuous process where 3 distinguishable growth waves or spurts existed. The third phase, the pronounced ‘pubertal growth spurt’ between 14 weeks and 20 weeks in layer pullets predicts point of lay (Kwakkal et al. 1997). During this transition time the pre-layers nutrient requirement which has plateaued as she approaches a mature pullet weight will now begin to increase and change as well. Hence, traditional method of feeding layer pullets (Bureau of Indian Standards) by offering starter diet up to 8 weeks and grower diet up to 18/20 weeks needs to be reviewed for better productivity and good health. In this regard, a concept of pre-lay feed was introduced in the existing traditional feeding system of Bureau of Indian Standard for layers and a biological experiment was designed and conducted to study the effect of pre-lay feeding strategy during transition period (15 weeks to sexual maturity) on pullet growth and laying perf...
Commercial Japanese quail farming has created a reasonable impact in recent years and many farms ... more Commercial Japanese quail farming has created a reasonable impact in recent years and many farms have been established throughout the country for egg and meat production. At present, Tamil Nadu is one of the leading states in commercial Japanese quail farming in India. One of the critical inputs for commercial Japanese quail farming is cost effective quality day old quail chick. Feed is the major cost factor in production, of which protein is a crucial factor that influences the cost of feed and reproductive performance especially through embryonic mortality during incubation. In this context effect of dietary protein on embryonic mortality is to be explored with respect to reproductive performance of breeder Japanese quail.