Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 1
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

The aim of this study was to evaluate the efficacy of the Ovsynch protocol in the treatment of post-service subestrus in individual dairy cows compared to a single administration of PGF2α. The study was performed on 517 Polish Friesian Holstein cows with post-service anestrus over four years in 3 dairy herds under a herd health program. Cows (n=240) diagnosed ultrasonographically as non-pregnant and with a mature corpus were treated with a single PGF2α administration and inseminated at detected estrus. Cows without corpus (n=277) were treated with the Ovsynch protocol. The estrus detection rate after PGF2α administration, percentages of cows pregnant after the treatment and at day 260, intervals from parturition to treatment and from treatment to conception and pregnancy loss rates were calculated. The overall percentage of cows pregnant after treatment did not differ between animals treated with the Ovsynch protocol and with PGF2α (38.9% vs. 42.5%; p>0.05). In herd A the percentage of cows pregnant after treatment was significantly lower (p<0.05) for the Ovsynch group than for the PGF2α group (30.2% vs. 61.2%). In contrast, in herd C the percentage of cows pregnant after treatment was significantly higher (p<0.05) in the Ovsych group than in the PGF2α group (39.6% vs. 28.8%). The overall estrus detection rate after administration of PGF2α was 59.6%. However, it was significantly lower (p<0.05) in herd C (44.7%) than in herds A (79.6%) and B (76.3%). The overall pregnancy loss rate ranged from 5.1% to 13.3% and did not differ significantly between herds and treatment groups (p>0.05). In conclusion, Ovsynch protocol can be a useful alternative for treatment of post-service suboestrus in individual cows in dairy herds with insufficient oestrus detection.
Go to article

Bibliography


Barański W, Nowicki A, Zduńczyk S, Janowski T (2018) Incidence of clinical form of anestrus after unsuccessful service in cows in eight dairy herds in north-east of Poland. Pol J Vet Sci 21: 377-381.
Barański W, Zduńczyk S, Janowski T (2012) Late embryonic and foetal losses in eight dairy herds in north-east Poland. Pol J Vet Sci 15: 735-739.
Bartlett PC, Kirk J, Coe P, Marteniuk J, Mather EC (1987) Descriptive epidemiology of anestrus in Michigan Holstein-Friesian cattle. Theriogenology 27: 459-476.
Baryczka A, Barański W, Nowicki A, Zduńczyk S, Janowski T (2018) Effect of single treatment with cloprostenol or dinoprost on estrus and reproductive performance in anestrous dairy cows after service. Pol J Vet Sci 21: 383-387.
Dobson H, Walker SL, Morris MJ, Routly JE, Smith RF (2008) Why is it getting more difficult to successfully artificially inseminate dairy cows? Animal 2: 1104-1111.
Forar AL, Gay JM, Hancock DD, Gay CC (1996) Fetal loss frequency in ten Holstein dairy herds. Theriogenology 45: 1505-1513.
Lopez H, Satter LD, Wiltbank MC (2004) Relationship between level of milk production and estrous behavior of lactating dairy cows. Anim Reprod Sci 81: 209-223.
Lucy MC (2001) Reproductive loss in high-producing dairy cattle: where will it end? J Dairy Sci 84: 1277-1293.
Martinez J, Thibier M (1984) Reproductive disorders in dairy cattle: I. Respective influence of herds, seasons, milk yield and parity. Theri-ogenology 21: 569-581.
Mateus L, da Costa LL, Cardos JJ, Silva JR (2002) Treatment of unobserved oestrus in a dairy cattle herd with low oestrous detection rate up to 60 days post-partum. Reprod Domest Anim 37: 57-60.
McDougall S (2010) Effects of treatment of anestrous dairy cows with gonadotropin-releasing hormone, prostaglandin, and progesterone. J Dairy Sci 93: 1944-1959.
Mwaanga ES, Janowski T, Zduńczyk S (1999) Incidence of silent heat in cows and the effectiveness of its diagnosis and treatment with PGF2 alpha analogue, cloprostenol. Pol J Vet Sci 2: 109-112.
Nation DP, Morton J, Cavalieri J, MacMillan KL (2001) Factors associated with the incidence of ‘Phantom cows’ in Australian dairy herds. Proc N Z Soc Anim Prod 61: 180-183.
Nowicki A, Barański W, Baryczka A, Janowski T (2017) OvSynch Protocol and its Modifications in the Reproduction Management of Dairy Cattle Herds - an Update. J Vet Res 61: 329-336.
Paisley LG, Mickelsen WD, Frost OL (1978) A survey of the incidence of prenatal mortality in cattle following pregnancy diagnosis by rectal palpation. Theriogenology 9: 481-491.
Pilawski W, Siemieniuch MJ, Skarżyński DJ (2008) Influence of estrus synchronization and superovulation on corpus luteum functioning in cattle. Does hormonal manipulation always provide desirable effects? Med Weter 64: 525-527.
Plunkett SS, Stevenson JS, Call EP (1984) Prostaglandin F2 alpha for lactating dairy cows with a palpable corpus luteum but unobserved estrus. J Dairy Sci 67: 380-387.
Pursley JR, Mee MO, Wiltbank MC (1995) Synchronization of ovulation in dairy cows using PGF2alpha and GnRH. Theriogenology 44: 915-923.
Rabiee AR, Lean IJ, Stevenson MA (2005) Efficacy of Ovsynch program on reproductive performance in dairy cattle: a meta-analysis. J Dairy Sci 88: 2754-2770.
Répási A, Beckers JF, Sulon J, Karen A, Reiczigel J, Szenci O (2005) Effect of the type and number of prostaglandin treatments on corpus luteum, the largest follicle and progesterone concentration in dairy cows. Reprod Domest Anim 40: 436-442.
Rhodes FM, McDougall S, Burke CR, Verkerk GA, Macmillan KL (2003) Invited review: Treatment of cows with an extended postpartum anestrous interval. J Dairy Sci 86: 1876-1894.
Seguin B, Momont H, Baumann L (1985) C1oprostenol and dinoprost tromethamine in experimental and field trials treating unobserved estrus in dairy cows. Bovine Pract 20: 85-90.
Skarżynski DJ, Siemieniuch MJ, Pilawski W, Wocławek Potocka I, Bah MM, Majewska M, Jaroszewski JJ (2008) In vitro assessment of progesterone and prostaglandin E2 production by the corpus luteum in cattle following pharmacological synchronization of estrus. J Reprod Dev 55: 170-176.
Stevenson JS, Pursley JR (1994) Use of milk progesterone and prostaglandin F2 alpha in a scheduled artificial insemination program. J Dairy Sci 77: 1755-1760.
Szenci O, Beckers JF, Humblot P, Sulon J, Sasser G, Taverne MA, Varga J, Baltusen R, Schekk G (1998) Comparison of ultrasonography, bovine pregnancy-specific protein B, and bovine pregnancy-associated glycoprotein 1 test for pregnancy detection in dairy cows. Theriogeno- logy 50: 77-88.
Go to article

Authors and Affiliations

W. Barański
1
A. Nowicki
1
S. Zduńczyk
1

  1. Department of Animal Reproduction with Clinic, University of Warmia and Mazury, ul. Oczapowskiego 14, 10-719 Olsztyn, Poland

This page uses 'cookies'. Learn more