Animal Reproduction (AR)
Animal Reproduction (AR)
Original Article

Effect of live body weight and method of synchronization on ovulation, pregnancy rate and embryo and fetal loss in buffalo heifers

Luigi Esposito; Donato de Nicola; Anna Balestrieri; Georgios Petrovas; Francesca Licitra; Angela Salzano; Gianluca Neglia

Downloads: 1
Views: 1210


Abstract: This study aimed to assess the influence of live body weight (LBW) and age on reproductive performance in buffalo heifers synchronized by different treatments. The study was carried out on 146 Mediterranean buffalo heifers (mean age 25.3±13.4 months, LBW 424±47 kg), divided into 2 homogeneous groups and synchronized by Ovsynch-TAI Program (OVS; n = 72) or double prostaglandin administered 12 days apart (PGF; n = 74). All the buffaloes were inseminated twice and follicle dimensions and ovulation rate (OR) were assessed by ultrasound 24 and 48 h post-insemination. Pregnancy was assessed on day 25, 45 and 90 post-insemination and the incidence of late embryonic (LEM) and fetal (FM) mortality were respectively recorded. Data were analyzed by ANOVA, Chi-square test and multiple logistic regression. The LBW was significantly (P<0.05) higher in inseminated animals, compared to those that did not respond to the treatments (450.0±3.2 vs. 423.2±9.6 kg in inseminated and not inseminated heifers, respectively). Total OR was similar between groups, although OR at 24 h tended to be higher (P = 0.06) in OVS (86.7 vs. 72.9% in OVS and PGF, respectively). A (P<0.01) higher LBW was observed in ovulated heifers of PGF, while no differences were recorded in OVS. LBW affected OR (odds ratio = 1,032; P<0.05) only in PGF, while no effects were recorded in OVS. Total pregnancy rate, LEM and FM were similar between groups. In conclusion, the LBW would be considered before including buffalo heifers in a synchronization program and both synchronization treatments can be useful.


pubescent buffalo, synchronization, weight score


Baruselli PS, Amaral R, Barufi FB, Valentim R, Marques MO. Lecirelin and Buserelin (gonadotrophin releasing hormone agonists) are equally effective for fixed time insemination in buffalo.. Braz J Vet Res Anim Sci. 2001;38(3):142-5.

Bhatti SA, Sarwar M, Khan MS, Hussain SMI. Reducing the age at first calving through nutritional manipulations in dairy buffaloes and cows: a review. Pak Vet J. 2007;27(1):42-7.

Borghese A, Terzano GM, Barile VL, Annichiarico G, Allegrini S, Zicarelli L. Pubertà e mantenimento dell’attività ciclica ovarica nella bufala. Agricoltura e Ricerca. 1994;153:5-16.

Campanile G, Di Palo R, Gasparrini B, D’Occhio MJ, Zicarelli L. Effects of early management system and subsequent diet on growth and conception in maiden buffalo heifers. Livest Prod Sci. 2001;71(2-3):183-91.

Campanile G, Vecchio D, Baruselli PS, Di Palo R, Neglia G, D’Occhio MJ. Understanding the function of the corpus luteum and the onset of puberty in buffalo. Perspect Agric Vet Sci Nutr Nat Resour. 2009;4(2):1-8.

Campanile G, Vecchio D, Neglia G, Di Palo R, Prandi A, D’Occhio MJ. Progesterone and pregnancy status of buffaloes treated with a GNRH agonist. Livest Sci. 2008;115(2-3):242-8.

Carvalho NAT, Soares JG, Souza DC, Maio JRG, Sales JNS, Martins B Jr, Macari RC, D’Occhio MJ, Baruselli PS. Ovulation synchronization with estradiol benzoate or GnRH in a timed artificial insemination protocol in buffalo cows and heifers during the nonbreeding season. Theriogenology. 2017;87:333-8. PMid:27743689.

Carvalho PD, Fuenzalida MJ, Ricci A, Souza AH, Barletta RV, Wiltbank MC, Fricke PM. Modifications to Ovsynch improve fertility during resynchronization: evaluation of presynchronization with gonadotropin-releasing hormone 6 d before initiation of Ovsynch and addition of a second prostaglandin F2α treatment. J Dairy Sci. 2015;98(12):8741-52. PMid:26433420.

El Nouty FE. Effect of different feeding systems before and after weaning on age at puberty and at first conception in buffalo heifers [thesis]. Cairo: Faculty of Agriculture, Ain Shams, University of Cairo; 1971.

Ginther OJ, Kastelic JP, Knopf L. Composition and characteristics of follicular waves during the bovine estrous cycle. Anim Reprod Sci. 1989;20(3):187-200.

Haldar A, Prakash BS. Growth hormone-releasing factor (GRF) induced growth hormone advances puberty in female buffaloes. Anim Reprod Sci. 2006;92(3-4):254-67. PMid:16011881.

International Business Machines Corporation – IBM. IBM SPSS Statistics for Windows, version 20.0. Armonk: IBM; 2011.

Kastelic JP, Ginther OJ. Factors affecting the origin ofthe ovulatory follicle in heifers with induced luteolysis. Anim Reprod Sci. 1991;26(1-2):13-24.

Monteiro BM, Souza DC, Vasconcellos GSFM, Carvalho NAT, Baruselli PS. Effect of season on dairy buffalo reproductive performance when using P4/E2/eCG-based fixed-time artificial insemination management. Theriogenology. 2018;119:275-81. PMid:30064074.

Neglia G, Capuano M, Balestrieri A, Cimmino R, Iannaccone F, Palumbo F, Presicce GA, Campanile G. Effect of consecutive re-synchronization protocols on pregnancy rate in buffalo (Bubalus bubalis) heifers out of the breeding season. Theriogenology. 2018;113:120-6. PMid:29494837.

Neglia G, Gasparrini B, Salzano A, Vecchio D, De Carlo E, Cimmino R, Balestrieri A, D’Occhio MJ, Campanile G. Relationship between the ovarian follicular response at the start of an Ovsynch-TAI program and pregnancy outcome in the Mediterranean river buffalo. Theriogenology. 2016;86(9):2328-33. PMid:27577986.

Neglia G, Natale A, Esposito G, Salzillo F, Adinolfi L, Campanile G, Francillo M, Zicarelli L. Effect of prostaglandin F2α at the time of AI on progesterone levels and pregnancy rate in synchronized Italian Mediterranean buffaloes. Theriogenology. 2008;69(8):953-60. PMid:18346780.

Neglia G, Restucci B, Russo M, Vecchio D, Gasparrini B, Prandi A, Di Palo R, D’Occhio MJ, Campanile G. Early development and function of the corpus luteum and relationship to pregnancy in the buffalo. Theriogenology. 2015;83(6):959-67. PMid:25543155.

Ohashi OM. Estrus detection in buffalo cow. Buffalo J. 1994;10(2):61-4.

Pursley JR, Mee MO, Wiltbank MC. Synchronization of ovulation in dairy cows using PGF2α and GnRH. Theriogenology. 1995;44(7):915-23. PMid:16727787.

Sharma RK, Phulia SK, Jerome A, Singh I. Ovsynch Plus protocol improves ovarian response in anovular Murrah buffaloes in low-breeding season. Reprod Domest Anim. 2017;52(6):1030-5. PMid:28691349.

Stevenson JS, Pursley JR. Use of milk progesterone and prostaglandin F2α in a scheduled artificial insemination program. J Dairy Sci. 1994;77(6):1755-60. PMid:8083432.

Wagner JJ, Lusby KS, Oltjen JW, Rakestraw J, Wettemann RP, Walters LE. Carcass composition in mature Hereford cows: estimatioand effect on daily metabolizable energy requirement during winter. J Anim Sci. 1988;66(3):603-12. PMid:3378920.

Zicarelli L, Esposito L, Campanile G, Di Palo R, Armstrong DT. Effects of using vasectomized bulls in artificial insemination practice on the reproductive efficiency of Italian buffalo cows. Anim Reprod Sci. 1997;47(3):171-80. PMid:9329858.

5de507780e88253a309f5038 animreprod Articles
Links & Downloads

Anim Reprod

Share this page
Page Sections