Animal Reproduction (AR)
https://animal-reproduction.org/article/doi/10.21451/1984-3143-2017-AR0032
Animal Reproduction (AR)
Original Article

Hormones and monensin use to improve pregnancy rates in grazing lactating beef cows in the semiarid region of Argentina

Pablo Sebastián Reineri; Mónica Belén Piccardi; José Ignácio Arroquy J; Arnaldo Fumagalli; María Sumampa Coria; Olegario Hernández; Gabriel Bó; Gustavo Adolfo Palma

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Abstract

The objectives of this study were 1) to determine the effect of monensin treatment, alone or combined with a hormonal estrus synchronization treatment, on the pregnancy rate of lactating beef cows, and 2) to evaluate the effect of monensin capsule administration on ruminal metabolism in steers. In experiment 1, ninety-four cows were selected from a 300 cow herd. The experimental design used was a 2 x 2 factorial with the administration of monensin capsule as first factor (M1 = with monensin vs. M0 = without monensin) and hormonal treatment as second factor (H1 = with hormonal treatment vs. H0 = no hormonal treatment). Thirty-eight days before the beginning of the breeding season, cows were randomly assigned to the first factor, and thirty days later to the second factor, resulting in four treatments: M1H0, M1H1, M0H0 and M0H1. Cow were exposed to bull (bull/cow ratio 1:20) from day 0 (day 0 = start of the breeding season and 38 days after monensin capsule administration) to day 50. Pregnancy diagnosis was performed at 30, 60 and 80 days after start breeding season by ultrasonography. In experiment 2, eight ruminally cannulated crossbred beef steers were randomly assigned to two treatments (M1 and M0). To determine proportion of volatile fatty acids (VFA), ruminal fluid samples were taken on days 0, 40 and 77 of the experimental period, at 0, 4 and 12 h after grazing. In experiment 1, treatments whit monensin did not improve pregnancy rate (P = 0.95), however, hormonal treatment resulted in grater pregnancy rates (P = 0.03). In experiment 2, the proportion of VFA in ruminal fluid of steers was significantly different between treatments. The highest proportion of propionate was found in ruminal fluid from M1 treatment at 12 h after grazing (P = 0.04). In conclusion, the treatment with monensin increased the proportion of propionate. The result might suggest that energy balance was improved in steers, without improvement in cow´s pregnancy rates. Treatment with monensin alone did not improve pregnancy rate, nor did treatment with monensin enhance the pregnancy rate when a hormonal synchronisation treatment was given. Nevertheless, the use of a hormonal treatment increased pregnancy rate, suggesting that it could be used as a suitable tool to enhance the productivity in cows with marginal body condition score.

Keywords

hormone, monensin, pregnancy rate, volatile fatty acids

References

Baruselli PS , Reisa EL , Marquesa MO , Nassera LF , GA . 2004 . The use of hormonal treatments to improve reproductive performance of anestrous beef cattle in tropical climates . Anim Reprod Sci , 82/83 : 479 - 486 .

Baruselli PS , Sá Filho MF , Ferreira RM , Sales JNS , Gimenes LU , Vieira LM , Mendanha MF , GA . 2012 . Manipulation of follicle development to ensure optimal oocyte quality and conception rates in cattle . Reprod Domest Anim , 47 : 134 - 141 .

Beckett S , Lean I , Dyson R , Tranter W , Wade L . 1998 . Effects of monensin on the reproduction, health, and milk production of dairy cows . J Dairy Sci , 81 : 1563 - 1573 .

Bell NL , Anderson RC , Callaway TR , Franco MO , Sawyer JE , Wickersham TA . 2017 . Effect of monensin inclusion on intake, digestion and ruminal fermentation parameters by Bos taurus indicus and Bos taurus taurus steers consuming bermudagrass hay . J Anim Sci , 95 : 2736 - 2746 .

GA , Baruselli PS , Martínez MF . 2003 . Pattern and manipulation of follicular development in Bos indicus cattle . Anim Reprod Sci , 78 : 307 - 326 .

Bossis I , Wettemann RP , Welty SD , Vizcarra JA , Spicer LJ , Diskin MG . 1999 . Nutritionally induced anovulation in beef heifers : ovarian and endocrine function preceding cessation of ovulation . J Anim Sci , 77 : 1536 - 1546 .

Bretschneider G , Elizalde JC , Pérez FA . 2008 . The effect of feeding antibiotic growth promoters on the performance of beef cattle consuming forage-based diets: a review . Livest Sci , 114 : 135 - 149 .

Di Rienzo JA , Casanoves F , Balzarini MG , Gonzalez L , Tablada M , Robledo CW . InfoStat versión 2017 . Córdoba, Argentina : Grupo InfoStat, FCA, Universidad Nacional de Córdoba . Available on: http://www.infostat.com.ar .

Dicostanzo A , Williams JE , Keisler DH . 1999 . Effects of short- or long-term infusions of acetate or propionate on luteinizing hormone, insulin, and metabolite concentrations in beef heifers . J Anim Sci , 77 : 3050 - 3056 .

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 .

Diskin MG , Kenny DA . 2016 . Managing the reproductive performance of beef cows . Theriogenology , 86 : 379 - 387 .

Duffield TF , Leslie KE , Sandals D , Lissemore K , McBride BW , Lumsden JH , Dick P , Bagg R . 1999 . Effect of a monensin-controlled release capsule on cow health and reproductive performance . J Dairy Sci , 82 : 2377 - 2384 .

Duffield TF , Rabiee AR , Lean IJ . 2008 . A meta-analysis of the impact of monensin in lactating dairy cattle. Part 3. Health and reproduction . J Dairy Sci , 91 : 2328 - 2341 .

Fox DG , Sniffen CJ , O'Connor JD , Russell JB , Van Soest PJ . 1992 . A net carbohydrate and protein system for evaluating cattle diets: III. Cattle requirements and diet adequacy . J Anim Sci , 70 : 3578 - 3596 .

Hawkins DE , Petersen MK , Thomas MG , Sawyer JE , Waterman RC . 2000 . Can beef heifers and young postpartum cows be physiologically and nutritionally manipulated to optimize reproductive efficiency ? J Anim Sci , 77 : 1 - 10 .

Hayes DP , Pfeiffer DU , Williamson NB . 1996 . Effect of intraruminal monensin capsules on reproductive performance and milk production of dairy cows fed pasture . J Dairy Sci , 79 : 1000 - 1008 .

Hess BW , Lake SL , Scholljegerdes EJ , Weston TR , Nayigihugu V , Molle JDC , Moss GE . 2005 . Nutritional controls of beef cow reproduction . J Anim Sci , 83 : 90 - 106 .

Instituto Nacional de Tecnología Agropecuaria . 2013 . Guia para cuidado y uso de animales de experimentación, 2013 . Available on: http://www.inta.gob.ar/ documentos/ manuales-sobre-cuidado-y-supervisación-y-uso-de-animales.pdf . Accessed on: February 19, 2013 .

Ipharraguerre IR , Clark JH . 2003 . Usefulness of ionophores for lactating dairy cows : a review . Anim Feed Sci Technol , 106 : 39 - 57 .

Kaplan EL , Meier P . 1958 . Nonparametric estimation from incomplete observations . J Am Stat Assoc , 53 : 457 - 481 .

Kastelic JP , Curran S , Pierson RA , Ginther OJ . 1988 . Ultrasonic evaluation of the bovine conceptus . Theriogenology , 29 : 39 - 54 .

Lean IJ , Curtis M , Dyson R , Lowe B . 1994 . Effects of sodium monensin on reproductive performance of dairy cattle. I. Effects on conception rates, calving‐to‐conception intervals, calving‐to‐heat and milk production in dairy cows . Aust Vet J , 71 : 273 - 277 .

Linneen SK , McGee AL , Cole JR , Jennings JS , Stein DR , Horn GW , Lalman DL . 2015 . Supplementation of monensin and Optimase to beef cows consuming low-quality forage during late gestation and early lactation . J Anim Sci , v 93 : 30763083 .

Matos MC , Biluca DF , Vasconcelos JL , Wechsler FS . 2004 . Effects of monensin supplementation peripartum in metabolic and reproductive parameters in anestrous postpartum Nellore cows . J Anim Sci , 82 : 67 - 67 .

Murphy BD , Martinuk SD . 1991 . Equine chorionic gonadotropin . Endocr Rev , 12 : 27 - 44 .

Murphy BD . 2012 . Equine chorionic gonadotropin: an enigmatic but essential tool . Anim Reprod , 9 : 223 - 230 .

Núñez-Olivera R , Castro T , GA , Piaggio J , Menchaca A . 2018 . Equine chorionic gonadotropin administration after insemination affects luteal function and pregnancy establishment in postpartum anestrous beef cows . Domest Anim Endocrinol , 62 : 24 - 31 .

Olson K. 1991 . Diet sample collection by esophageal fistula and rumen evacuation techniques . J Range Manag , 44 : 515 - 519 .

Randel RD . 1990 . Nutrition and postpartum rebreeding in cattle . J Anim Sci , 68 : 853 - 862 .

Rasby RJ , Funston RN . 2016 . Invited review: Nutrition and management of cows: Supplementation and feed additives . Prof Anim Sci , 32 : 135 - 144 .

Richards MW , Wettemann RP , Schoenemann HM . 1989 . Nutritional anestrus in beef cows: body weight change, body condition, luteinizing hormone in serum and ovarian activity . J Anim Sci , 67 : 1520 - 1526 .

Roche JF , Crow MA , Bolandb MP . 1992 . Postpartum anoestrus in dairy and beef cows . Anim Reprod Sci , 28 : 371 - 378 .

Russell JB , Strobel HJ . 1989 . Minireview effect of lonophores . Appl Environ Microbiol , 55 : 1 - 6 .

Sá Filho MF , Crespilho AM , Santos JEP , Perry GA , Baruselli PS . 2010 a . Ovarian follicle diameter at timed insemination and estrous response influence likelihood of ovulation and pregnancy after estrous synchronization with progesterone or progestin-based protocols in suckled Bos indicus cows . Anim Reprod Sci , 120 : 23 - 30 .

Sá Filho MF , Torres-Júnior JRS , Penteado L , Gimenes LU , Ferreira RM , Ayres H , Castro LA , Sales JNS , Baruselli PS . 2010 b . Equine chorionic gonadotropin improves the efficacy of a progestin-based fixed-time artificial insemination protocol in Nelore (Bos indicus) heifers . Anim Reprod Sci , 118 : 182 - 187 .

Sexten AJ . 2011 . The effects of hay processing and feeder design on hay utilization . Stillwater, OK : Oklahoma State University . Marter's thesis .

Silkea V , Diskina MG , Kennya DA , Boland MP , Dillon P , Mee JF , Sreenana JM . 2002 . Extent, pattern and factors associated with late embryonic loss in dairy cows . Anim Reprod Sci , 71 : 1 - 12 .

Stewart F , Allen WR . 1981 . Biological functions and receptor binding activities of equine chorionic gonadotrophins . J Reprod Fertil , 62 : 527 - 536 .

Tallam SK , Duffield TF , Leslie KE , Bagg R , Dick P , Vessie G , Walton JS . 2003 . Ovarian follicular activity in lactating Holstein cows supplemented with monensin . J Dairy Sci , 86 : 3498 - 3507 .

Wettemann RP , Lents CA , Ciccioli NH , White FJ , Rubio I . 2003 . Nutritional- and suckling-mediated anovulation in beef cows . J Anim Sci , 81 ( E-suppl ): 48 - 59 .

 

 

 

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