ارزیابی روزهای باز آبستنی و ارتباط آن با برخی مولفه‌های خون، شیر و غذا در گاوهای شیری نژاد هلشتاین

نوع مقاله: مقاله کامل

نویسندگان

1 دانش آموخته PhD، دانشکده دامپزشکی دانشگاه ارومیه

2 استادگروه علوم درمانگاهی، دانشکده دامپزشکی دانشگاه ارومیه

3 دانشیار گروه علوم درمانگاهی، دانشکده دامپزشکی دانشگاه ارومیه

چکیده

روزهای باز آبستنی و ارتباط آن با شاخص‌های خون، شیر و غذا در گاوهای پرتولید جهت تعیین مولفه‌های تاثیرگذار در فحلی و آبستنی بررسی شد. همزمان با فحلی نمونه‌های خون، شیر و غذا بصورت ماهانه تا شروع آبستنی جمع‌آوری شدند. درصد فحلی‌ها از یک تا 6 فحلی به‌ترتیب 3/21، 2/26، 7/19، 10/13، 6/6 و 10/13 بودند. درصد گاوهای 2 تا 11 ماه آبستن به ترتیب 5/11، 3/21، 8/9، 6/1، 5/11، 8/9، 5/11، 3/3، 8/9 و 8/9 بودند. فراوانی فحلی‌ها و ماه‌های آبستنی معنی‌دار بودند. بیشترین گاوها در سه ماهگی آبستن شدند. میانگین آبستنی 180 روز بود. حدود 50% فحلی‌ها بدون تشخیص بودند. جهت تعیین ارتباط بین روزهای باز آبستنی با شاخص‌های مطالعه، روزهای باز آبستنی به کمتر و بیشتر از 120 روز تقسیم شدند. میانگین اوره، کراتینین، بتاهیدروکسی بوتیرات، فسفر، منیزیم، هماتوکریت، هموگلوبین و لکوسیت‌های خون در بین گاوها متفاوت بودند نتایج نشان داد که با افزایش پروتئین و کلسیم غذا، اوره، پروتئین و منیزیم خون و منیزیم شیر روزهای باز آبستنی افزایش ‌معناداری یافت. همچنین با افزایش هموگلوبین و فسفر خون، اوره، پروتین و فسفر شیر روزهای باز آبستنی کاهش معناداری ‌یافت. نتیجه اینکه روزهای باز آبستنی در گاوهای این مطالعه دو برابر حالت طبیعی بود. بیشترین عوامل تاثیرگذار در روزهای باز آبستنی شاخص‌های خون و شیر بودند. تغییرات پروتئین تام و ماکرومینرال‌ها و اوره از نشانگرهای برجسته در روزهای باز آبستنی گاو محسوب می‌گردند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Evaluation of the open days and its relationship with hematobiochemical, milk and diet parameters in dairy Holstein cattle

نویسندگان [English]

  • Sh. Nozad 1
  • Ali-Gholi Ramin 2
  • Siamak Asri Rezaei 3
1 Veterinary Graduated, Veterinary College, Urmia University, Urmia, Iran.
2 Professor, Department of clinical Science, Veterinary college, Urmia University, Urmia, Iran.
3 Associate Professor, Department of clinical Science, Veterinary college, Urmia University, Urmia, Iran.
چکیده [English]

Pregnancy open days (POD) and its relationship with diet, blood and milk parameters was assessed in high producer dairy cows to determine the indices could be affect on pregnancy rate. Following the estruses recording feed, blood and milk samples were prepared monthly up to the date of pregnancy in dairy cows. The visible estruses was from one to 6 and were 21.3%, 26.2%, 19.7%, 18.1%, 6.6% and 13.1%, respectively. The POD were varied from 2 to 11 months and were 11.5%, 21/3%, 9.8%, 1.6%, 11.5%, 9.8%, 11.5%, 3.3%, 9.8% and 9.8%, respectively. The differences among visible estruses and POD were statistically significant. Most cows revealed pregnancy after 3 months of calving. The overall mean for POD were 6 months. Approximately 50% of estruses were latent and have not been recognized. Mean values of urea, protein, calcium, magnesium, and phosphorus in diet, blood and milk during the POD were statistically significant difference among the groups . To realize the relationships between POD and biochemical parameters, POD classified into >120 and

کلیدواژه‌ها [English]

  • Open days
  • Cattle
  • Blood
  • Milk
  • Diet
1- Anders H, Gustafsson J, Carlsson DW (1993). Effects of silage quality, protein evaluation systems and milk urea content on milk yield and reproduction in dairy cows. Livest Prod Sci, 37: 91-105 .
2- Arunvipas P, Vanleeuwen JA, Dohoo IR, Leger ER, Keefe GP, Burton AS, Lissemore KD (2007). Milk urea-nitrogen negatively affected first service breeding success in commercial dairy cows in Prince Edward Island, Canadian PreventVet Med, 82: 42-50.
3- Butler WR (2000). Nutritional interactions with reproductive performance in dairy cattle. Anim Reprod Sci, 61: 446-457.
4- Butler WR (1998). Review:Effect of protein nutrition on ovarian and uterine physiology in dairy cattle. J Dairy Sci, 81: 2533-2539.
5- Carlsson J, Bergström J (1994). The diurnal variation of urea in cow's milk and how milk fat content, storage and preservation affects analysis by a flow injection technique. Acta Vet Scand 74: 67-77.
6- Cozzi G, Ravarotto Lb, Gottardo F, Stefani ALb, Contiero B, Moro Lb, Brscic M, Dalvit P (2011). Short communication: Reference values for blood parameters in Holstein dairy cows: Effects of parity, stage of lactation, and season of production. J Dairy Sci, 94: 3895-3901.
7- Das JM, Dutta P, Deka KC, Biswas RK, Sarmah B C, Dhali A (2009). Comparative study on serum macro and micro mineral profiles during oestrus in repeat breeding crossbred cattle with impaired and normal ovulation. Livest Res Rural Develop, 21: 72-79
8- Demeter RM, Markiewicz K, van Arendonk JA, Bovenhuis H. (2010). Relationships between milk protein composition, milk protein variants, and cow fertility traits in Dutch Holstein-Friesian cattle. J Dairy Sci, 93:5495-502.
9- Diskin MG, Mackey DR, Roche JF, Sreenan JM (2003). Effects of nutrition and metabolic status on circulating hormones and ovarian follicle development in cattle. Anim Reprod Sci, 78: 345-370.
10- Downie JG, Gelman AL (1976). The relationship between changes in bodyweight plasma glucose and fertility in beef cows. Vet Rec, 99: 210-212.
11- Garcia-bojalil CM, Staples CR, Risco CA, Savio JD, Taatcher WW (1998). Protein degrability and calcium salts of long chain fatty acids in the diets lactating dairy cows. Reprod Res J Dairy Sci, 81:1385-1395.
12- Hof G, Vervoorn MD, Lenaers PJ, Tamminga S (1997). Milk urea nitrogen as a tool to monitor the protein nutrition of dairy cows. J Dairy Sci, 80:3333-3340.
13- Hojman D, Kroll O, Adin G, Gips M, Hanochi B, Ezra E (2004). Relationship between milk urea and production nutrition and fertility traits in Israeli dairy herds. J Dairy Sci, 87; 1001-1011.
14- Hossein-Zadeh NG, Ardalan M (2010). Genetic relationship between milk urea nitrogen and reproductive performance in Holstein dairy cows. Animal, 16:1-7.
15- Howard HJ, Aalseth EP, Adams GD, Bush LJ, Mc New RW,.Dawson LG (1987). Influence of dietery protein on reproductive performance of dairy cows. J Dairy Sci, 70:1563-1571.
16- König S, Chang YM, Borstel UU, Gianola D, Simianer H (2008). Genetic and phenotypic relationships among milk urea nitrogen, fertility, and milk yield in Holstein cows. J Dairy Sci, 91: 4372-4382.
17- Law RA, Young FJ, Patterson DC, Kilpatrick DJ, Wylie AR, Mayne CS. (2009). Effect of dietary protein content on the fertility of dairy cows during early and mid lactation. J Dairy Sci, 92: 2737-2746.
18- Lopez H, Wu Z, Satter LD, Wiltbank MC. (2004). Effect of dietary phosphorus concentration on estrous behavior of lactating dairy cows. Theriogenology, 61:437-445.
19- Maas J. (1987). Relationship between nutrition and reproduction in beef cattle. Veterinary Clinics of North America: Food Animal Practice, 3: 633-641.
20- Nourozi M, Moussavi AH, Abazari M, Zadeh MR (2010). Milk Urea Nitrogen and fertility in dairy farms. J Anim Vet Adv. 9: 1519-1525.
21- Nozad Sh, Ramin AG, Moghadam Gh, Asri-Rezaie S, Babapour A. (2011). Diurnal variations in milk urea, protein and lactose concentrations in holstein dairy cows, Acta Vet Beograd, 61: 3-12.
22- Nozad Sh, Ramin AG, Moghadam Gh, Asri-Rezaie S, Babapour A. (2012). Monthly evaluation of blood hematological, biochemical, mineral and enzyme parameters during the lactation period in Holstein dairy cows, Com Clin Pathol, 61: 1607-1614.
23- Oliveira Filho BD, Toniollo GH, Oliveira AF, Viu MA, Ferraz HT, Lopes DT, Gambarini ML. (2010). The effect of offering an energy and protein supplement to grazing Canchim beef cows either postpartum or both pre- and postpartum on lipid blood metabolites and folliculogenesis. Anim Reprod Sci, 121:39-45.
24- Rhoads ML, Gilbert RO, Lucy MC, Butler WR, (2004). Effects of uterine infusion on the uterine luminal environment of dairy cows. J Dairy Sci, 87:2896-2901.
25- Rhoads M.L, Rhoads RP, Gilbert RO, Toole R, Butler WR (2006). Detrimental effects of high plasma urea nitrogen levels on viability of embryos from lactating dairy cows. Anim Reprod Sci, 91:10-18.
26- Skrzype R, Chraplewski H, Biaon K (2005). Relationship between milk urea concentration and cow fertility. Medycyna Wet, 61: 536-539.
27- Stapels CR, Tatcher WW, Cloork JH.(1990). Relationship between ovarian activity and energy status during the early postpartum period of high producing dairy cows. J dairy Sci, 73: 938-947.
28- Suttle NF (2010). Mineral Nutrition of Livestock.. 4th Edition, FSC, Mixed Sources, MPG Books Group, 355–377.
29- Trevaskis LM, Fulkerson WJ (1999). The relationship between various animal and management factors and milk urea and its association with reproductive performance of dairy cows grazing pasture. Livest Prod Sci, 57: 255-265.
30- Villa NA, Osorio JM, Escobar D, Ceballos A (2011). Biochemical indicators of energy balance around calving in pasture-based brahman cows in the tropic of Colombia. Ciencias Veterinarias de la Universidad del Zulia, 21: 353-359.
31- Wittwer FG, Gallardo P, Reyes J, Opitz H (1999). Bulk milk urea concentrations and their relationship with cow fertility in grazing dairy herds in southern Chile. Prev Vet Med, 38: 159-166.