پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 161 |
| تعداد شمارهها | 6,532 |
| تعداد مقالات | 70,501 |
| تعداد مشاهده مقاله | 124,098,261 |
| تعداد دریافت فایل اصل مقاله | 97,205,922 |
Circulating metabolic hormones in different metabolic states of high producing Holstein dairy cows | ||
| Iranian Journal of Veterinary Medicine | ||
| مقاله 5، دوره 10، شماره 4، اسفند 2016، صفحه 277-284 اصل مقاله (835.54 K) | ||
| نوع مقاله: Physiology | ||
| شناسه دیجیتال (DOI): 10.22059/ijvm.2016.59721 | ||
| نویسندگان | ||
| Ali Asghar Chalmeh* 1؛ Ali Hajimohammadi2 | ||
| 1D.V.M; Ph.D; Assistant Professor of Large Animal Internal Medicine, Division of Large Animal Internal Medicine; Department of Clinical Sciences; School of Veterinary Medicine; Shiraz University; Shiraz; Iran | ||
| 2Department of Clinical Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran | ||
| چکیده | ||
| Background: Information regarding the metabolic hormones in different metabolic states of high producing dairy cows can aid high producing herds to manage and resolve the metabolic and production problems. Furthermore, it can be considered as a tool to evaluate metabolic status of dairy cows. Herd managers can also evaluate the energy input-output relationships by assessing the metabolic profile to prevent and control negative energy balance, metabolic disorders and nutritional insufficiencies. OBJECTIVES: The present study was performed to clarify the metabolic hormone profile in each metabolic state of high producing Holstein dairy cows. The results of this research can reveal the normal metabolic state of these animals. METHODS: 25 multiparous Holstein dairy cows were divided to 5 equal groups containing early, mid and late lactations, far-off and close-up dry periods. Blood samples were collected from all cows and sera were analyzed for concentrations of triiodothyronine (T3), thyroxine (T4), free T3 (fT3), free T4 (fT4), cortisol and insulin like growth factor-1 (IGF-1). RESULTS: Serum T3 concentration in early lactation group was significantly higher than other ones (p<0.05). T4 levels in early and mid lactation dairy cows were lower than other studied groups, significantly. The cows in early lactation and close-up dry periods had the highest and the lowest serum fT3 concentrations, respectively (p<0.05). fT4 in far-off dry cows was significantly higher than others. The highest and the lowest circulating levels of cortisol were detected in mid and late lactation periods, respectively (p<0.05). The lowest concentrations of IGF1 were detected in early lactation period and its highest levels were seen in mid and late lactation and far-off dry cows (p<0.05). CONCLUSIONS: Metabolic hormones change in different metabolic states of high producing Holstein dairy cows. The presented metabolic hormone profile can be considered as criteria to monitor the metabolic status of dairy cows at different metabolic states. | ||
| کلیدواژهها | ||
| Dairy Cows؛ herd management؛ metabolic hormones؛ normal value؛ physiologic states | ||
| مراجع | ||
|
Abribat, T., Brazeau, P., Davignon, I., Garrel, D.R. (1993) Insulin‐like growth factor‐l blood levels in severely burned patients: effects of time post injury, age of patient and severity of burn. Clin Endocrinol. 39: 583-589.##
Akers, R.M. (2002) Lactation and the Mammary Gland. (1st ed.) Iowa State Press, Ames, Iowa, USA.##
Alapati, A., Kapa, S.R., Jeepalyam, S., Rangappa, S.M., Yemireddy, K.R. (2010) Development of the body condition score system in Murrah buffaloes: validation through ultrasonic assessment of body fat reserves. J Vet Sci. 11: 1-8.##
Beerda, B., Kornalijnslijper, J., Van der Werf, J., Noordhuizen-Stassen, E., Hopster, H. (2004) Effects of milk production capacity and metabolic status on HPA function in early postpartum dairy cows. J Dairy Sci. 87: 2094-2102.
Christison, G., Johnson, H. (1972) Cortisol turnover in heat-stressed cows. J Anim Sci. 35: 1005-1010.##
Collins, K.J., Weiner, J.S. (1968) Endocrinological aspects of exposure to high environmental temperatures. Physiol Rev. 48: 785-839.##
Djoković, R., Šamanc, H., Jovanović, M., Nikolić, Z. (2007) Blood concentrations of thyroid hormones and lipids and content of lipids in the liver of dairy cows in transitional period. Acta Vet Brno. 76: 525-532.##
Găvan, C., Retea, C., Motorga, V. (2010) Changes in the hematological profile of Holstein primiparous in periparturient period and in early to mid lactation. SPASB. 43: 244-246.##
Goff, J., Horst, R. (1997) Physiological changes at parturition and their relationship to metabolic disorders. J Dairy Sci. 80: 1260-1268.##
Hunter, D., Erb, R., Randel, R., Garverick, H., Callahan, C., Harrington, R. (1970) Reproductive steroids in the bovine. I. Relationships during late gestation. J Anim Sci. 30: 47-59.##
Johannsen, U., Menger, S., Staufenbiel, R., Klukas, H. (1993) Investigations on morphology and function of the liver of high-yielding cows 2 weeks postpartum. Deut Tierarztl Woch. 100: 177-181.##
Kim, I.H., Na, K.J., Yang, M.P. (2005) Immune responses during the peripartum period in dairy cows with postpartum endometritis. J Reprod Dev. 51: 757-764.##
Nikolic, J., Samanc, H., Begovic, J., Damjanovic, Z., Dokovic, R., Kostic, G., Krsmanovic, J., Resanovic, V. (1997) Low peripheral serum thyroid hormone status independently affects the hormone profile of healthy and ketotic cows during the first week post partum. Acta Vet Beograd 47: 3-13.##
Overton, T., Waldron, M. (2004) Nutritional management of transition dairy cows: strategies to optimize metabolic health. J Dairy Sci. 87: E105-E119.##
Pezzi, C., Accorsi, P., Vigo, D., Govoni, N., Gaiani, R. (2003) 5′-deiodinase activity and circulating thyronines in lactating cows. J Dairy Sci. 86: 152-158.##
Quiroz-Rocha, G.F., LeBlanc, S.J., Duffield, T.F., Wood, D., Leslie, K.E., Jacobs, R.M. (2009) Reference limits for biochemical and hematological analytes of dairy cows one week before and one week after parturition. Can Vet J. 50: 383-388.##
Radostits, O.M., Gay, C., Hinchcliff, K.W., Constable, P.D. (2007) Veterinary Medicine: A Textbook of the Diseases of Cattle, Horses, Sheep, Pigs and Goats. (10th ed.) Saunders. London, UK.##
Reist, M., Erdin, D., Von Euw, D., Tschuemperlin, K., Leuenberger, H., Chilliard, Y., Hammon, H., Morel, C., Philipona, C., Zbinden, Y. (2002) Estimation of energy balance at the individual and herd level using blood and milk traits in high-yielding dairy cows. J Dairy Sci. 85: 3314-3327.##
Roberts, A., Nugent, R., Klindt, J., Jenkins, T. (1997) Circulating insulin-like growth factor I, insulin-like growth factor binding proteins, growth hormone, and resumption of estrus in postpartum cows subjected to dietary energy restriction. J Anim Sci. 75: 1909-1917.##
Rowlands, G., Payne, J., Dew, S.M., Manston, R. (1973) A potential use of metabolic profiles in the selection of superior cattle. Vet Rec. 93: 48-49.##
Sjaastad, Ø., Hove, K., Sand, O. (2010) The endocrine system. In: Physiology of Domestic Animals. (2nd ed.) Scand Vet Press, Oslo, Norway. p. 248-251.##
Svennersten-Sjaunja, K., Olsson, K. (2005) Endocrinology of milk production. Domes Anim Endocrinol. 29: 241-258.##
Tan, K., Shiu, S., Kung, A. (1998) Effect of thyroid dysfunction on high-density lipoprotein subfraction metabolism: roles of hepatic lipase and cholesteryl ester transfer protein 1. J Clin Endocrinol Metab. 83: 2921-2924.##
Taylor, V., Cheng, Z., Pushpakumara, P., Wathes, D. Beever, D. (2004) Relationships between the plasma concentrations of insulin-like growth factor-I in dairy cows and their fertility and milk yield. Vet Rec. 155: 583-588.##
Tiirats, T. (1996) Thyroxine, triiodothyronine and reverse-triiodothyronine concentrations in blood plasma in relation to lactational stage, milk yield, energy and dietary protein intake in Estonian dairy cows. Acta Vet Scand. 38: 339-348.##
Tucker, H. (2000) Hormones, mammary growth, and lactation: a 41-year perspective. J Dairy Sci. 83: 874-884.##
Van Knegsel, A., Van den Brand, H., Graat, E., Dijkstra, J., Jorritsma, R., Decuypere, E., Tamminga, S., Kemp, B. (2007) Dietary energy source in dairy cows in early lactation: metabolites and metabolic hormones. J Dairy Sci. 90: 1477-1485.##
Vicini, J.L., Buonomo, F.C., Veenhuizen, J.J., Miller, M.A., Clemmons, D.R., Collier, R.J. (1991) Nutrient balance and stage of lactation affect responses of insulin, insulin-like growth factors I and II, and insulin-like growth factor-binding protein 2 to somatotropin administration in dairy cows. J Nutr. 121: 1656-1664.##
Vonderhaar, B.K., Greco, A.E. (1979) Lobulo-alveolar development of mouse mammary glands is regulated by thyroid hormones. Endocrinology 104: 409-418.##
Yen, P.M. (2001) Physiological and molecular basis of thyroid hormone action. Physiol Rev. 81: 1097-1142.## | ||
|
آمار تعداد مشاهده مقاله: 1,403 تعداد دریافت فایل اصل مقاله: 1,098 |
||