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Shinde, Kuladip Prakash
- Effect of Level of Jersey Inheritance in Crossbred Cattle on Subsequent Milk Yield
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Authors
Affiliations
1 Department of Animal Genetics and Breeding, Sam Higginbottom Institute of Agriculture, Technology and Sciences ALLAHABAD (U.P.), IN
2 Division of Livestock Production and Management, ICAR-NDRI, KARNAL (HARYANA), IN
3 Division of Livestock Production and Management, ICAR-NDRI, KARNAL (HARYANA), IN
1 Department of Animal Genetics and Breeding, Sam Higginbottom Institute of Agriculture, Technology and Sciences ALLAHABAD (U.P.), IN
2 Division of Livestock Production and Management, ICAR-NDRI, KARNAL (HARYANA), IN
3 Division of Livestock Production and Management, ICAR-NDRI, KARNAL (HARYANA), IN
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The Asian Journal of Animal Science, Vol 11, No 1 (2016), Pagination: 13-18Abstract
This study was conducted to see the effect of level of Jersey inheritance in cross bred cattle on subsequent milk production. The data subsequent milk production of Jersey (J) and Red Sindhi (RS) cows maintained at dairy farm, Sundersan School of Animal Husbandry and Dairying, Sam Higginbottom Institute of Agriculture, Technology and Sciences Allahabad were recorded form the history sheets of the animals maintained during this period (1930-1962) for the basis of this study. Jersey Sindhi crosses were divided into 4 geneticgroups consisting of 17, 11, 51 and 24 animals in G1 (1/2J × 1/2RS), G2 (3/8 J X 5/8 RS), G3 (1/4 J × 3/4RS), G4 (1/8J × 7/8 RS). The effects of Jersey inheritance on subsequent milk production were recorded. Dry period has a non-significant effect on subsequent milk yield in all crosses except in 3/8J × 5/8 RS crosses a significant effect was observed on milk yield only. Therefore, due emphasis should be given to the crosses having exotic inheritance 62.5 per cent for selection and cross breeding.Keywords
Cross Bred, Jersey, Red Sindhi, Lactation.References
- Ahmed, M. K. A., Teirab, A. B., Musa, L. M. A. and Peters, K. J. (2007). Milk production and reproduction traits of different grades of zebu x Friesian crossbreds under semi-arid conditions. Arch. Tierz., Dummerstorf , 50 (3): 240-249.
- Andersen, J.B., Madsen, T.G., Larsen, T., Ingvartsen, K.L. and Nielsen, M.O. (2005).The effects of dry period versus continuous lactation on metabolic status and performance in periparturient cows. J. Dairy Sci., 88 : 3530-3541.
- Basu, S.B. and Ghai, A.S. (1981). Genetic and non-genetics sources of variation in dry period of Murrah buffaloes. Indian J. Anim. Sci., 51 (2) : 151-152.
- Birhanu, T., Mohammed, T., Kebede K. and Tadesse, M. (2015). Estimation of crossbreeding parameters for milk production and reproduction traits in holstein friesian and ethiopian boran crosses. J. Reprod. & Infert., 6 (3): 63-69.
- Chopra, R.C. and Bhatnagar, U.S. (1973). Influence of service period on lactation period and lactation yield in Sahiwal, Red Sindhi and Jersey × Sindhi crossbred. Indian J. Dairy Sci., 43 (8): 384.
- Das, D., Goswamim, R. N., Deka, D. and Mili, D.C. (2002). Genetic and non-genetic factors affecting the lactation milk yield and lactation length of Jersey and Red Dane cattle. Indian J. Anim. Health, 41 (2): 137-140.
- Dhumal, M.V., Sakhare, P.G. and Deshpande, K.S. (1989). Factors affectaing lactation milk yield and lactation length in Red Kandhari and cross breed cows. Indian J. Dairy Sci., 42 (1): 102-104.
- Hassan, F. and Khan, M.S. (2013). Performance of crossbred dairy cattle at military dairy farms in Pakistan. J. Anim. Plant Sci., 23(3): 705-714.
- Funk, D.A., Freeman, A.E. and Berger P.J. (1987). Effects of pervious days open, previous days dry and present days open on lactation yield. J. Dairy Sci., 70 : 2366-2373.
- Kuhn M.T., Hutchison, J.L. and Norman, H.D.( 2000). Minimum days dry to maximize milk yield in subsequent lactation. Anim. Res., 54 : 351-367.
- Kuhn, M.T., Hutchison, J.L. and Norman, H.D. (2007). Dry period length in US Jerseys: characterization and effects on performance. J. Dairy Sci., 90: 2069-2081.
- Madsen, O. (1976). Red Danish cattle in the tropics.Wld. Anim. Rev., 19 : 8-13.
- Mulugeta, A. and Belayeneh, A. (2013). Reproductive and lactation performances of dairy cows in Chacha Town and nearby selected kebeles, North Shoa Zone, Amhara Region, Ethiopia. World J. Agric. Sci., 1(1) : 8-17.
- Nehra, S.C., Ram, S. and Chaudhary, A.C. (1978). Effecting calving interval and lactation length in Holstein Friesian x Sahiwalcrosses.Internat. J. Tropi. Agric., 5 (3-4): 240-246.
- Pramanik, A. K., Samanta, A. K. Pyne, A. K. and Samnanta, M. K. (2000).Effect of breeds lactation order and season of calving 330 days lactation and peak yield in crossesbreds cows in W.B. Indian Vet. J., 77 : 1091-1092.
- Rege, J. E.O., Lomole, M.A. and Wakhungu, J.W. (1992).An evaluation of a long-term breeding programme in a closed Sahiwal herd in Kenya. I. Effect of non-genetic factors on performance and genetic parameter estimates. J. Anim. Breed. Genet., 109 : 364-373.
- Remond, B., Rouel, J., Pinson ,N. and Jabet, S. (1997). An attempt to omit the dry period over three consecutive lactations in dairy cows. Ann. Zootech., 46 : 399-408.
- Shelter, V. B. and Govindaiah, M. G. (1999). Effect of genetic and n on genetic factors on production performance of cross breed cattle. Indian Vet. J., 76 : 515-517.
- Snedecor, G.W. and Conhran, W.G. (1967). Statistical methods, The IOWA State University Press, USA, pp.593.
- Snedecor, G.W. and Conhran, W.G. (1994).Statistical method. 8th Ed., The lowa State University press, AMES, LOWA.
- Taneja, V.K., Bhat, P.N. and Garg, R.C. (1979). Genetic divergence in various Sahiwal x Holsteincrossbred grades. Theor. & Appl. Genet., 54 (2): 69-74.
- Tomar, S.S. and Balani, D.S. (1973). Effect of length of service period and proceeding dry period on the milk yield in Harayana Cattle. Indian J. Dairy Sci., 26 (1): 20-24.
- Verma, N. and Thakur, Y.P. (2013). Effect of genetic and non-genetic factors on production efficiency traits of Red Sindhi x Jersey crossbred cows maintained under sub-temperate Indian conditions. Livestock Res. Internat., 1 (2) : 58-60.
- Wondifraw, Z., Thombre, B. M. and Bainwad, D. V. (2013). Effect of non-genetic factors on milk production of Holstein Friesian × Deoni crossbred cows. Afr. J. Dairy Farm. Milk Prod., 1 (4) : 79-84.
- Effect of Different Colours of Light on Performance of Caged Broilers
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Authors
Affiliations
1 Department of Livestock Production And Management, Sundaresan School Of Animal Husbandry and Dairying, Sam Higginbottom Institute of Agriculture, Technology and Sciences, ALLAHABAD (U.P.), IN
2 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
3 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
1 Department of Livestock Production And Management, Sundaresan School Of Animal Husbandry and Dairying, Sam Higginbottom Institute of Agriculture, Technology and Sciences, ALLAHABAD (U.P.), IN
2 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
3 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
Source
The Asian Journal of Animal Science, Vol 11, No 1 (2016), Pagination: 24-29Abstract
The objective of this study was to evaluate the performance of the broiler chicken (body weight, feed intake and feed conversion ratio) at the fifth week of age. The broiler chicks were weighed, leg banded and distributed randomly into four groups as treatments, battery type iron cages, feeders, waters and other equipments were thoroughly cleaned disinfected, dried, sterilized by blow torch and finally fumigated by use of mixture of KMnO4 (potassium permanganates) and formaldehyde before use. The chicks were fed ad libitum with standard starter ration containing CP: 22 per cent and ME:2900 k.cal./kg feed upto 3 weeks age and then after broiler finisher ration with CP: 19 per cent and ME: 3000 k.cal./kg feed upto 5 weeks age. The broiler chicks of all groups were kept under similar management practices except lighting regimes as per treatment upto five (5) weeks age in battery type iron cages in laboratory. It is concluded colours of light did not show any significant effect on feed intake and feed conversion ratio (FCR) in broilers. The colour of light has a significant effect on the weight gain at the fifth week of age. The milky white and yellow colours of light are effective to obtain higher weekly body weight at five weeks age of caged broilers.Keywords
Broiler, Growth Rate, Body Weight, Colour, Light.References
- Aige, G.V. and Murillo-Ferrol, N. (1992). Effect of white light on the pineal gland of the chick embryo. Histopathol., 7 : 1-6.
- BIS, J. (1997). National requirement for poultry. Bureau of Indian standards. I.S. 13574.
- Blair, R., Newberry, R.C. and Gardiner, E.E. (1993.) Effect of lighting pattern broiler house lighting source and photoperiod. Poult. Sci., 69:1471-1479.
- Blatchford, R.A.,Klasing, K.C., Shivaprasad, H.L., Wakenell, P.S., Archer, G.S. and Mench, J.A. (2009). The effect of light intensity on the behaviour, eye and leg health and immune function of broiler chickens. Poul. Sci., 88:20-28.
- Buckland, R.B., Gasperdon, H.C. and Bragg, D.B. (1971). Interaction of strain density and ration with 2 light systems on broiler performance.Can. J. Anim. Sci., 51 : 613–619.
- Buckland, R.B., Hill, A.T. and Bernon, D. E. (1975). Effect of four lighting regimes on the performance of broilers and rosters.Can. J .Anim. Sci., 53: 21.
- Campo, J. L. and Davila, S. G. (2002). Effect of photoperiod on heterophil to lymphocyte ratio and tonic immobility duration of chickens. Poult. Sci., 81: 1637-1639.
- Campo, J.L.,Gil, M.G., Davila, S.G. and Munoz (2007). Effect of lighting stress on fluctuating asymmetry, hetrophil-to- lymphocyte ratio and tonic immobility duration in eleven breeds of chickens. J. Poult. Sci., 43: 355-363.
- Cherry P. and Barwick, M.W. (1962).The effect of light on broiler growth. I. light intensity and colour. British poult. Sci., 3 : 3139.
- Deaton, J. L. and Reece, J.L.M. Naughton (1978). Effect of intermittent light on broilers reared under moderate temperature conditions. Poult. Sci., 57:785-788.
- Dharmaretnam, M. and Rogers, L.J. (2005). Hemispheric specialization and dual processing in strongly versus weekly lateralized chicks. Behav. Brain Res., 162:62-70.
- Downs, K.M., Lien, R.J., Hess, J.B., Bilgili, S.F. and Dozier, W.A. (2006). The effect of photoperiod length, light intensity, and feed energy on growth responses and meat yield of broilers. J. Appl. Poult. Res., 15: 406-416.
- Ghuffar, A., Rahman, K., Siddque, M., Ahmad, F. and Khan, M.A. (2009). Impact of various lighting source incandescent, metal halide and high pressure sodium on the production performance of chicken broilers. Pakistan. J. Agric. Sci., 46 :1.
- Heshmatollah, K. (2007). Preference of broiler chicks for colour of lighting and feed. J. Poult. Sci., 44 : 213-219.
- Hoopaw, P.D. and Goodman, B. L. (1972).The influence of intermittent light on growth, feed efficiency and other traits in broilers..Poult. Sci., 51 : 1820-1821.
- Kliger, C. A., Gehad, A. E., Hulet, R.M., Roush, W.B., Lillehoj, H. S. and Mashaly, M. M. (2000). Effect of photoperiod and melatonin on lymphocyte activities in male broiler chickens. Poult. Sci., 79:18-25.
- Kondra, P.A. (1961). The effect of coloured light on growth and feed efficiency of chicks and poults. J. Poultry Sci.,40 : 268.
- Lien, R.J., Hess, J.B., McKee, S.R., Bilgili, S.F. and Townsend, J.C. (2007). Impact of light intensity and photoperiod on live performance, heterophil to lymphocyte ratio and processing yields of broilers. Poult. Sci., 86 : 1287-1293.
- Malone, G. W., Chaloupka, G. W., Merkley, J.W. and Littlefield, L.H. (1980).The effect of feeder space and light treatment on broiler performance. Poult. Sci., 59 : 2697-2702.
- Nelson, R. J. and Demas, G. E. (1997). Role of melatonin in mediating seasonal energetic and immunologic adaptations. Brain Res. Bull., 44 : 423-430.
- Prayitno, D.S., Phillips, C.J.C. and Omed, H. (1997). The effect of colour of lighting on the behaviour and production of meat chickens. J. Poult. Sci., 76 : 452-457.
- Prescott, N.B. and Wattes, C.M. (2013). Spectral sensitivity of the domestic fowl (Gallus g. domesticus). J. British Poult. Sci., 40 : 332-339.
- Quarles, S. and Kling, H. F. (1974). The effect of three lighting regimes on broiler performance schedule on broiler performance. Poult. Sci., 53 : 1435-1438.
- Rahimi, G.,Rezaei, M., Hafezian, H. and Saiyahzadeh, H. (2005). The effect of intermittent lighting schedule on broiler performance. Internat. J. Poult. Sci., 4 (6): 396-398.
- Ratsaka, M., Ngambi, J. W. and Ndlovu, L.R. (2012) . Effect of Potable Cage Rearing System and Stocking Density on Growth, Feed Intake and Carcass Characteristics of Ross 308 Broiler Chickens J. Anim. Sci. Adv., 2: 312-320.
- Reiter, K. and Kutritz, B. (2003). Behaviour and leg weakness in different broiler breeds.Archiv. Fur. Geflugelkunde, 63 : 137-141.
- Rierson, R.D. (2011). Broiler preference for light colour and feed form, and the effect of light on growth and performance of broiler chicks. Master of Science Thesis, Kansas State University.
- Rozenboim, I., Biran, I., Chaiseha, Y., Yadav, S., Rosenstrauch, A., Sklan, D. and Halvy, O. (2004). The effect of green and blue monochromatic light combination on broiler growth and development. Poult. Sci., 83: 842 – 845.
- Rozenboim, I., Robinzon, B. and Rosenstrauch, A. (1999). Effect of light source and regimen on gr owing broilers. British Poult. Sci., 40 : 452-457.
- Schumaier, G., Harrison, P.C. and McGinnis, J. (1968). The effects of coloured fluorescent light on growth, Cannibalism and subsequent egg production of single comb White Leghorn pullets. J. Poult. Sci., 47: 1599-1602.
- Snedecor, G.W. and Conhran, W.G. (1994).Statistical method. 8thEd., The lowa State University press, AMES, LOWA.
- Taylor, A., Sluckin, W. and Hewitt, R. (1969).Changing coiour preferences of chicks.Anim. Behaviou.,17 : 3-8.
- BAHS (Basic Animal Husbandry Statistics) (2012).Department of Animal Husbandry, Dairying and Fisheries, Ministry of Agriculture, Government of India.April, 2012.http://www.dahd.nic.in.
- The Effects of Different Treatments of Pre-Milking Manual Tactile Teat Stimulation on Day-to-Day Variation in Milk Yield, Milk Components, Main Milking Phase, Total Milking Time and Average Milk Flow Rate in Crossbred Cattle
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Authors
Affiliations
1 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
2 Department of Livestock Production and Management, Sam Higginbottom Institute of Agriculture Technology and Sciences, ALLAHABAD (U.P.), IN
3 Division of Animal Reproduction, Gynecology and Obstetrics, National Dairy Research Institute, KARNAL (HARYANA), IN
4 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
1 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
2 Department of Livestock Production and Management, Sam Higginbottom Institute of Agriculture Technology and Sciences, ALLAHABAD (U.P.), IN
3 Division of Animal Reproduction, Gynecology and Obstetrics, National Dairy Research Institute, KARNAL (HARYANA), IN
4 Division of Livestock Production and Management, ICAR-National Dairy Research Institute, KARNAL (HARYANA), IN
Source
The Asian Journal of Animal Science, Vol 11, No 1 (2016), Pagination: 43-48Abstract
The present study was carried out to investigate the effect of different treatments of udder stimulation on day to day variations in milk parameters in cross bred cows. In group T1, milk yield was positively (P<0.01) correlated with main milking phase, total milking time and average milk flow rate. Milking duration was significantly (P<0.01) correlated with total milking time and average milk flow rate. Total milking time was showed positive (P<0.01) correlation with average milk flow rate. Fat percentage had positive (P<0.05) correlation with SNF (r=0.46). Significantly (P<0.05) positive correlation was observed between total solids with lactose and ash content. SNF was significantly (P<0.05) correlated with acidity. Specific gravity was positively (r=0.59) correlated with total solids. In T2, milk yield was significantly (P<0.01) correlated with main milking phase, total milking time, average milk flow rate (r = 0.99) and negatively (P<0.05) correlated with fat percentage. Main milking phase had positive correlation with total milking time and average milk flow rate and negative correlation with fat percentage. Total milking time was significantly correlated with average milk flow rate. Average milk flow rate had negative correlation with fat percentage (r=-0.71). In T3, milk yield was significantly correlated with main milking phase, total milking time and average milk flow rate and negatively with fat percentage (r=-0.55). Total milking time and average milk flow rate were positively correlated with main milking phase and milking duration was negatively correlated with fat percentage (r=-0.54). Total milking time was positively correlated with average milk flow rate and negatively correlated with fat. Fat percentage was negatively correlated with average milk flow rate was with. Ash content and acidity were positively correlated with total solids.Keywords
Teat, Tactile, Manual, Stimulation, Variation, Milk, Crossbred, Cattle.References
- Antalik, P. and Strapak, P. (2011). Effect of parity and lactation stage on milk flow characteristics of slovak simmental dairy cows, Veterinarija ir Zootechnika (vet med zoot), 54 (76): 8-13.
- AOAC (2005) Official methods of analysis. Association of Official Analytical chemists. (17th Ed). EUA.
- Barnett, A. J. C. and Nawab, G. A. (1957). A rapid method for the determination of lactose in milk and cheese. J. Sci. Food & Agric., 8 : 437-441.
- Bonfoh, B., Zinsstag, J., Farah, Z., Simbe, C.F., Alfaroukh, I.O., Aebi, R., Badertscher, R., Collomb, M., Meyer, J. and Rehberger, B. (2005). Raw milk composition of malian zebu cows (Bos indicus) raised under traditional system. J. Food Comp.& An., 18 (1): 29-38.
- B.I.S. (1976): IS 7874. Handbook of food analysis, Dairy products (part-I), Bureau of Indian standards, Manek Bhavan, NEW DELHI, INDIA.
- Coulibaly, M. and Nialibouli, O. (1998). Effect of suckling regime on calf growth, milk production and offtake of zebu cattle in mali. Trop. Anim. Health. Prod., 30: 179-189.
- IS 1224-1 (1977). Determination of fat by the Gerber method, Part I: Milk [FAD 19: Dairy Products and Equipment].
- IS 1479-2 (1961).Method of test for for dairy industry, Part 2: Chemical analysis of milk [FAD 19: Dairy Products and Equipment].
- Johansson, I., Korkman, N. and Nelson, N.J. (1952). Studies on udder evacuation in dairy cows. I: the rise in fat percentage during milking. Acta Agr. Scand., 2 : 43-81.
- Korpich, M. (1946). Rapid estimation of protein content of cow’s milk by means of the formal titration. Suddtsch Molkereiztg, 67: 162-163.
- Krogmeier, D., Luntz, B. and Goetz, K. (2006). Investigations on the economical value of type traits on the basis of auction sales of first lactation brown swiss and simmental cows. Zuchtungskunde, 78 : 464 - 478.
- Marier, J. R. and Boulet, M. (1959). Direct analysis of lactose in milk and serum. J. Dairy Sci., 42:1390-1391.
- Millogo, V., Ouedraogo, G. A., Agenas, S. and Svennersten-Sjaunja, K. (2009). Day-to-day variation in yield, composition and somatic cell count of saleable milk in hand-milked zebu dairy cattle. African J. Agric. Res., 4 (3): 151-155.
- Murphy and Boor (2000) Specific gravity of milk and its uses in Dairy Industry. Indian Dairyman.,6:241-246.
- Sidibe-Anago, A.G., Ouedraogo, G.A. and Ledin, I. (2006). Effect of partly replacing cottonseed cake with Mucuna spp. (Var Ghana) hay on feed intake and digestibility, milk yield and milk composition of zebu cows. Trop. Anim. Health. Prod., 38: 563-570.
- Singh, S.B. and Prasad, J. (1987). A study on population density and physiological quality of bacterial flora in aseptically drawn milk. Livestock Advisor., 12 (6) : 16-18.
- Sjaunja, L.O. (1986). Day-to-day variation in milk yield, milk composition and somatic cell count. International Committee for Recording the Productivity of Milk Animals (ICRPMA), 25th Session.
- Svennersten-Sjaunja, K., Sjaunja, LO., Bertilsson, J. and Wiktorsson, H. (1997).Use of regular milking records versus daily records for nutrition and other kinds of management. Livest. Prod. Sci., 48 : 167-174.
- Syrstad, O. (1977). Day-to-day variation in milk yield, fat content and protein content. Livest. Prod. Sci., 4 : 141-151.
- Scientific Artificial Insemination in Swine
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Authors
Affiliations
1 Division of Livestock Production and Management, National Dairy Research Institute, KARNAL (HARYANA), IN
1 Division of Livestock Production and Management, National Dairy Research Institute, KARNAL (HARYANA), IN
Source
The Asian Journal of Animal Science, Vol 11, No 1 (2016), Pagination: 60-64Abstract
No Abstract.Keywords
Scientific Artificial, Insemination, Swine.References
- Aitken, R.J., Clarkson, J.S. and Fishel, S. (1989). Generation of reactive oxygen species, lipid peroxidation and human sperm function. Biol. Reprod., 41 : 183–197.
- Almlid, T. and Hofmo, P.O. (1996). A brief review of frozen semen application under Norwegian AI service conditions. Reprod. Dom. Anim., 31: 169–173.
- Bailey, J.L., Bilodeau, J.F. and Cormier, N. (2000). Semen cryopreservation in domestic animals: a damaging and capacitating phenomenon. J Androl, 21:1–7.
- Banerjee, G.C. (2008). Artificial insemination. A textbook of animal husbandy VIII Ed., Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi, 294-338pp.
- Bathgate, R. (2008). Functional integrity of sex-sorted, frozen-thawed boar sperm and its potential for artificial insemination. Theriogenology, 70: 1234–1241.
- Bathgate, R., Eriksson, B.M., Thomson, P.C., Maxwell, W.M. and Evans, G. (2008). Field fertility of frozen–thawed boar sperm at low doses using non-surgical, deep uterine insemination. Anim. Reprod. Sci., 103 : 323–335.
- Crabo, B. and Einarsson, S. (1971). Fertility in deep frozen boar spermatozoa. Acta. Vet. Scand., 12:125–129.
- Devireddy, R.V., Fahrig, B., Godke, R.A. and Leibo, S.P. (2004). Subzero water transport characteristics of boar spermatozoa confirm observed optimal cooling rates. Mol. Reprod. Dev., 67 : 446–457.
- Garner, D.L., Thomas, C.A., Gravance, C.G., Marshall, C.E., De Jarnette J.M. and Allen, C.H. (2001).Seminal plasma addition attenuates the dilution effect in bovine sperm. Theriogenology, 56 : 31–40.
- Grobfeld, R., Sieg, B., Struckmann, C., Frenzel, A., Maxwell, W.M.C.and Rath, D. (2008). New aspects of boar semen freezing strategies. Theriogenology, 70: 1225–1233.
- Harayama, H., Nanjo, I.K. and Kato, S. (1991). Testicular development in chinese meishan boars. Theriogenology, 36 : 637–643.
- Ito, H., Kudo, A. and Niwa, T. (1944). Studies on the normal oestrus in swine. Res. Bull. Zootech. Exp. Stat., 49: 1–51.
- Janice, L., Bailey, Lessard C., Jacques, J., Christelle, B. Zeng, W. Hannah, L. and Homer, G. (2008). Cryopreservation of boar semen and its future importance to the industry. Theriogenology, 70: 1251–1259.
- Johnson, L.A. andWelch, G.R. (1999). Sex preselection: high-speed flow cytometric sorting of X and Y sperm for maximum efficiency. Theriogenology, 52:1323–1341.
- Kruger, C. (2000). Untersuchungen zur intrauterinen Besamung mit reduzierter Spermienzahl bei Jungsauen und Altsauen. Thesis, Hannover: Tiera¨rztl Hochsch.
- Kruger, C. and Rath, D. (2000). Intrauterine insemination in sows with reduced sperm number. Reprod Fertil. Dev., 12:113–117.
- Kumaresan, A., Bujarbaruah, K.M., Karunakaran, M., Das, Anubrata and Bardoloi, R.K. (2008). Assessment of early sexual maturity in nondescript local pigs of northeast India: Testicular development, spermiogram and in vivo pregnancy. Livestock Sci., 116: 342–347.
- Mann, T. (1964). The biochemistry of semen and of the male reproductive tract. Methuen and Co, LONDON, UNITED KINGDOM.
- Milovanov, V.K., Baranov, F.A., Zhiltsova, L.S. and Oivadis, R.N. (1974). Methods of freezing boar semen.Zhivotnovodstvo, 3: 66– 71.
- Park, H.K., Kim, S.H., Kim, K.J. and Choi, K.M. (1977). Studies on the frozen boar semen. 1. Studies on the development of duluents for freezing of boar semen. Kor. J. Anim. Sci., 19: 260–266.
- Perry, E. J. (1968). The artificial insemination of farm animals. 4th Ed. Rutgers University Press, NEW BRUNSWICK, NJ.
- Polge, C., Salamon, S. and Wilmut, I. (1970). Fertilizing capacity of frozen semen following surgical insemination. Vet. Rec., 87: 424–428.
- Salamon, S. and Visser, D. (1973). Fertility test of frozen boar spermatozoa. Aust. J. Biol. Sci., 26: 291–293.
- Spallanzani, L. (1979). Opuscoli di fisca animale e vegetabile. Obuscolo II. Observazioni e esperenze intorno ai vermicelli spermatici dell’ homo e degli animali. (Observations upon the spermatozoa of humans and animals). Modena Cited by Watson PF; 1979.
- Tada, N., Sato, M., Yamanoi, J., Mizorogi, T., Kasai, K. and Ogawa, S. (1990). Cryopreservation of mouse spermatozoa in the presence of raffinose and glycerol. J. Reprod. Fertil., 89 : 511–516.
- Watson, P.F. (1995). Recent developments and concepts in the cryopreservation of spermatozoa and the assessment of their postthawing function. Reprod. Fertil. Dev., 7: 871–891.
- Weitze, K.F. (2000). Update on the worldwide application of swine AI. In: Boar Semen Preservation IV. Beltsville, MD, USA. 141– 145 pp.
- Westendorf, P., Richter, L. and Treu, H. (1975). Zur T von Ebersperma Labor-und Besamung se rgebnisse mit dem H lsenberger Pailletten-Verfahren.Dstch. Tier¨artzl. Wschr., 82 : 261–267.
- Wolken, A., Rath, D, Bortolozzo, R., Wentz, I. and Marquetti, A. (2002). Sows can successfully be inseminated non-surgically into the distal uterine horn with highly reduced number of sperm cells. Theriogenology, 57 : 392.
- BAHS (Basic Animal Husbandry Statistics) (2012). Department of animal husbandry, dairying and fisheries, ministry of agriculture, Government of India. April, 2012. http://www.dahd.nic.in.