| تعداد نشریات | 284 |
| تعداد نشریات سازمان | 82 |
| تعداد شماره‌ها | 3,081 |
| تعداد مقالات | 34,377 |
| تعداد مشاهده مقاله | 48,005,844 |
| تعداد دریافت فایل اصل مقاله | 78,922,827 |
اثر مصرف ملاتونین و بروموکریپتین بر تولید کرک و رشد طولی الیاف بزهای رائینی | ||
| علوم دامی | ||
| مقاله 6، دوره 30، شماره 116، آذر 1396، صفحه 69-78 اصل مقاله (932.84 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/asj.2017.113949 | ||
| نویسندگان | ||
| جواد رودباری1؛ مهناز صالحی2؛ اردشیر محیط3؛ هدی جواهری بارفروشی* 2 | ||
| 1دانش آموخته کارشناسی ارشد دانشگاه گیلان | ||
| 2عضو هیات علمی موسسه تحقیقات علوم دامی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج، ایران | ||
| 3عضو هیات علمی دانشکده کشاورزی، دانشگاه گیلان، رشت،ایران | ||
| چکیده | ||
| برای تعیین اثر ملاتونین و بروموکریپتین بر رشد طولی، قطر کرک و مو و تولید بیده، 24 راس بز ماده رائینی(دو و سه ساله با میانگین وزن بدن 4/1±0/35 کیلوگرم) انتخاب شدند. بزها در قالب یک طرح کاملا تصادفی تحت چهار گروه آزمایشی شامل: 1)شاهد، 2) کاشت ملاتونین، 3) تزریق بروموکریپتین و 4) مصرف هم‌زمان ملاتونین و بروموکریپتین قرار گرفتند. در بزهای گروه دوم، یک قرص 18 میلی‌گرمی ملاتونین در زیر پوست کاشته شد و 40 روز بعد این عمل تکرار شد. در گروه سوم، نیم میلی‌گرم بروموکریپتین برای هر کیلوگرم وزن زنده طی سه نوبت در هفته تزریق شد. در گروه چهارم، ملاتونین و بروموکریپتین با یکدیگر مصرف شد. بزها به‌مدت دو ماه در شرایط طبیعی محیط با طول دوره کوتاه روشنائی و تغذیه یکسان، از اواسط بهمن تا اوایل فروردین پرورش داده شدند. میانگین وزن بیده بزهای گروه‌های برموکریپتین، ملاتونین+بروموکریپتین، ملاتونین و شاهد به ترتیب 4/607، 3/600، 3/523 و 3/471 گرم بود و بزهای گروه بروموکریپتین و ملاتونین+ بروموکریپتین بیده بیشتری نسبت به دو گروه دیگر داشتند (05/0.(P< طول الیاف کرک گروه‌هایی که هورمون دریافت کرده بودند (2/1 سانتی‌متر) با گروه شاهد (9/0 سانتی‌متر) اختلاف داشت (01/0P<). قطر الیاف کرک بزهای شاهد (7/21 میکرون) در مقایسه با گروه‌های ملاتونین، بروموکریپتین و ملاتونین+بروموکریپتین، به‌ترتیب با مقادیر 4/18، 4/18 و 2/19 میکرون اختلاف داشت (05/0 .(P<نتایج نشان داد، که کاشت ملاتونین و بروموکریپتین باعث افزایش طول الیاف و نهایتاً تولید کرک بیش‌تر می‌شود. | ||
| کلیدواژه‌ها | ||
| طول کرک؛ قطر کرک؛ مو؛ وزن بیده؛ هورمون | ||
| عنوان مقاله [English] | ||
| Effect of melatonin and bromocryptine administration on cashmere production and fibre length growth of Raeini goats | ||
| نویسندگان [English] | ||
| M. Salehi2؛ A. Mohit3؛ Hoda Javaheri Barfourooshi2؛ | ||
| چکیده [English] | ||
| Twenty-four Raeini cashmere goat females (2 and 3 years of age and 35.0±1.4 kg BW) were used to determine effects of melatonin implants and bromocryptine on fiber growth rate (length), cashmere and hair diameter and fleece production. A completely random design was carried out. Four groups were formed: 1) control, 2) melatonin implant, 3) bromocryptine injection and 4) melatonin implant + bromocryptine injection. The experimental goats received melatonin implants subcutaneously 18 mg/kg BW at first and repeated after 40 days, group 2), bromocryptine ( 0.5 mg/kg BW per 3 days; group 3) and melatonin implant and with bromocryptine; group 4 ). All goats were fed a balanced diet under the same environmental and natural photoperiodic conditions in a 60-day, from February to March. Overall mean fleece weight were 607.4, 600.3, 523.3 and 471.3g, for bromocryptine, melatonin+bromocryptine, melatonin and control groups, respectively, being greater for bromocryptine and melatonin+bromocryptine than for the other groups (P<0.05). The cashmere fibre length of the treatment groups (1.2 cm) were significantly greater (P<0.01) than that of the control group (0.9 cm). There was a significant difference in cashmere fiber diameter for control group (21.7 micron) compared with treatment groups for melatonin, bromocryptine and melatonin+bromocryptine (18.4, 18.4 and 19.2 ± 0.9 micron, respectively). The results indicated that melatonin implantation and bromocryptine could increase fiber length and promote cashmere production continuously. | ||
| کلیدواژه‌ها [English] | ||
| Cashmere diameter, Cashmere length, Fleece weight, Hair, Hormone | ||
| مراجع | ||
|
سال‌نامه آماری کشور. 1387. سال‌نامه آماری استان کرمان. صفحه 66. Abecia, J.A., Valares, J.A. and Forcada, F. (2005) The Effect of melatonin treatment on wool growth and thyroxine secretion in sheep. Small Ruminant Research. 56(1):265-270. Ansari Renani, H.R., Mueller, J.P., Rischkowsky, B., Seyed Momen, S.M., Alipour, O., Ehsani, M. and Moradi, S. (2012) Cashmere quality of Raeini goats kept by nomads in Iran. Small Ruminant Research. 104(3):10–16. ASTM (1982) American Society for Testing Materials. Diameter of wool and other animal fibres by microprogection. D2130-78, 32:498–507. Betteridge, K., Welch, R.A.S., Pomroy, W.E., Lapwood, K.P. and Devantier, B.P. (1987) Out of season cashmere growth in feral goats. In: Proceedings of the Second International Cashmere Conference, Lincoln College.137–142. Choy, V.J., Nixon, A.J. and Pearson, A.J. (1997) Distribution of prolactin receptor immune reactivity in ovine skin and changes during the wool follicle cycle. Endocrinolgy. 155:265–275. Curlewis, J.D., Sibbald, A.M., Milne, J.A. and McNeilly, A.S. (1991) Chronic treatment with long-cting bromocriptine does not affect duration of the breeding season, voluntary food intake, body weight, or wool growth in the Scottish Blackface ewe. Reproduction, Fertility and Development. 3(1):25–33. De Villar, J.F., McMillen, S. R., Dicks, P. and Rhinda, S. M. (2000) The roles of thyroid hormones and prolactin in the control of fibre moult and associated changes in hair follicle activities in cashmere goats. Australian Agriculture Research. 51: 407–414. Dicks, P., Russel, A. J. and Lincoln, G. A. (1996) The localisation and characterisation of insulin-like growth factor-I receptors and the investigation of melatonin receptors on the hair follicles of seasonal and non-seasonal fibre-producing goats. Endocrinology. 151(1):55-63. Duan, C., Xu, J., Sun, C., Jia, Z. and Zhang, W. (2015)Effects of melatonin implantation on cashmere yield, fiber characteristics, duration of cashmere growth as well as growth and reproductive performance of inner Mongolian cashmere goats. J. Anim. Sci. Bioiech. 6: 22-27. Fu, S., Zhao, H., Zheng, Z., Li, J., and Zhang, W. (2014) Melatonin regulating the expression of miRNAs involved in hair follicle cycle of cashmere goats skin. Yi Chuan. 36(12):1235-42. Galbraith, H. (1994) Follicle culture- a new approach to explore seasonal control of fiber growth. In: Laker JP, Allain D (Eds.), European fine fiber network. Occas. Publ. No.2, Macaulay Land Use Research Institute, Craigiebucker, Aberdeen, UK, pp:129–145. Geng, R., Wang, L., Wang, X. and Chen, Y. (2014) Cyclic expression of Lhx2 is involved in secondary hair follicle development in cashmere goat. Gene Experimental Patterns. 16(1):31-5. Hales, J.R. and Fawcett, A.A. (1993) Wool production and blood supply to skin and other tissues in sheep. Animal Science. 71(2):492-498. Harris, P.M., Xu, Z.Z., Blair, H.T., Dellow, D.W., McCutcheon, S. N. and Cockrem, J. (1989) The effect of exogenous melatonin, administered in summer, on wool growth and testis diameter of Romneys. Journal Proceeding of New Zealand Society Animal Production. 49:35–38. Ibraheem, M., Galbraith, H., Scaife, J. and Ewen, S. (1994) Growth of secondary hair follicles of the cashmere goat in vitro and their response to prolactin and melatonin. Departments of Agriculture and Pathology, University of Aberdeen, UK. Anemology 185:135–142. Kloren, W.R.L. and Norton, B.W. (1995) Melatonin and fleece growth in Australian cashmere goats. Small Ruminant Research. 17(2):179-185. Lanszki, J. (2000) The role of photoperiod and melatonin in seasonal biorhythms of mammals (a review). Acta Agraria Kaposváriensis. 4(2):57-83. Litherland, A. J., Paterson, D. J., Parry, A. L., Dick, H. B. and Staples, L. D. (1990) Melatonin for cashmere production. Journal Proceeding of New Zealand Society Animal Production. 50: 339–343. Mc Cloghery, C.E., Flodes, A., Rintoul, A., Maxwell, C.A. and Hollis, D.E. (1992) Effects of pinealectomy on wool growth and wool follicle density in Merino sheep. Pineal Research. 13(3):139-144. Nixon, A.J., Choy, V.J., Parry, A.L. and Pearson, A.J. (1993) Fiber growth initiation in hair follicles of goats treated with melatonin. Experimental Zoology. 267:47–6. Rafat, S.A. and Shodja, D. (2004) The effects of feeding levels on characteristics of fibers of Raeini cashmere goats. Livestock Research Rural Devision. 16:1-3. Rhind, S.M. and McMillen, R. (1995) Seasonal patterns of secondary fiber growth, molting, and hair follicle activity in Siberian and Icelandic × Scottish feral goats offered high and low levels of dietary protein. Small Ruminant Research. 16:69–76. Salehi, M., Aasadi Fozi, M., Mir Hadi, A. and Afshar, M. (2010) Environmental factors affecting fleece traits in Raeini cashmere goat. Journal Agricultural and Marine Science. Sultan Qaboos University Research. 15:20-31. SAS (2002) Proprietary Software Version 9.00. SAS Institute: Cary, NC. Shamsaddini-Bafti, M., Salehi, M., Maghsoudi, A., Tehrani, A., Mirzaei, F. and Momen, S.M. (2012) Effect of sex and rearing system on the quality and mineral content of fibre from Raeini cashmere goats. Animal Science and Biotechnology. 3(1):1-6. Teh, T.H., Jia, Z.H., Ogden, K.D. and Newton, G.R. (1991) The effects of photoperiod and melatonin implant on cashmere production. Animal Science. 69:496. Toerien, C. A., Puchala, R., McCann, J. P., Sahlu, T. and Goestsch, A. L. (1999) Adrenocortical response to ACTH in angora and Spanish goat weathers. Animal Science. 77: 1558-1564. Wang, L.F., Lu, D.X., Sun, H.Z., Zhao, X.Y. and Shan, D. (2006) Effects of photoperiod and melatonin on nitrogen partitioning and cashmere growth in Inner Mongolia white cashmere goats. Science Agricultural. 39:1004–1010. Welch, R.A.S., Gurnsey, M.P., Betteridge, K. and Mitchell, R.J. (1990) Goat fibre response to melatonin given in spring in two consecutive years. Journal Proceeding of New Zealand Society Animal Production. 50:146–149. Winder, L.M., Scobie, D.R., Bray, A.R. and Bickerstaffe, R. (1995) Wool growth rate in vitro is independent of host animal nutrition, season, and the potential mediators of photoperiod, melatonin and prolactin. Experimental Zoology. 272(6):446-454. Wuliji, T., Litherland, A., Goetsch, A.L., Sahlu, T., Puchala, R., Dawson, L.J. and Gipson, T. (2006) Evaluation of melatonin and bromocryptine administration in Spanish goats: III. Effects on hair follicle activity, density and relationships between follicle characteristics. Small Ruminant Research. 66(1):11-21. Yue, C., Sun, M., Liu, H., Zhang, W., Zhu, X., Kong, X., and Jiaet, Z. (2012) Expression of deiodinase gene mRNA after melatonin manipulated in cashmere goats skin during cashmere growth. Animal and Veterinary Advances. 11:1837-1842. Zhang, L., Zhang, Y., Su, R., Wang, R., and Li, J. (2014) The regulatory mechanism of microRNAs in skin and hair follicle development. Yi Chuan. 36(7):655-60. | ||
|
آمار تعداد مشاهده مقاله: 552 تعداد دریافت فایل اصل مقاله: 484 |
||