Browsing Articles publicats (Ciència Animal) by Author "García Ispierto, Irina"
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Benefits and Risks of Preventing Twin Pregnancies
García Ispierto, Irina; López Gatius, Fernando (MDPI, 2021-01-11)Clinical problems associated with twin pregnancies have been well established, and twin births are now considered undesirable or even disastrous for the dairy cattle industry and the individual cow. The high incidence of ... -
Chronic Neospora caninum infection and repeat abortion in dairy cows: a 3-year study
Pabón, M.; López Gatius, Fernando; García Ispierto, Irina; Bech Sàbat, Gregori; Nogareda, Carmina; Almería, S. (Elsevier, 2007)The serological status of Neospora was monitored in animals older than 6 months in a dairy herd with a 3-year history of prevalent N. caninum and N. caninum-associated abortions. The numbers of animals in the herd tested ... -
Climate factors affecting conception rate of high producing dairy cows in northeastern Spain
García Ispierto, Irina; López Gatius, Fernando; Bech Sàbat, Gregori; Santolaria Blasco, Pilar; Yániz Pérez de Albéniz, Jesús; Nogareda, Carmina; De Rensis, F.; López-Béjar, M. (Elsevier, 2007)Summer heat stress is a main factor related to low conception rate in high producing dairy herds in warm areas worldwide. We assessed the impact of several climate variables on conception rate in high producing dairy cows ... -
Dynamics of anti-Neospora caninum antibodies during gestation in chronically infected dairy cows
Nogareda, Carmina; López Gatius, Fernando; Santolaria Blasco, Pilar; García Ispierto, Irina; Bech Sàbat, Gregori; Pabón, M.; Mezo, M.; Gonzalez-Warleta, M.; Castro Hermida, J. A.; Yániz Pérez de Albéniz, Jesús; Almería, S. (Elsevier, 2007)The dynamics of antibody production against Neospora caninum during the gestation period was examined in chronically infected dairy cows. Data were obtained from 86 pregnant parous dairy cows, 21 of which had suffered ... -
Dynamics of Coxiella burnetii antibodies and seroconversion in a dairy cow herd with endemic infection and excreting high numbers of the bacterium in the bulk tank milk
Nogareda, Carmina; Serrano, Beatriz; García Ispierto, Irina; López Gatius, Fernando; Almería, S. (Elsevier, 2012)Possible factors related to seropositivity and seroconversion to Coxiella burnetii were examined in a dairy herd with a high Coxiella-seroprevalence and high excretion levels of the bacterium in the bulk tank milk. Antibodies ... -
Early postabortion recovery of Neospora-infected lactating dairy cows
Santolaria Blasco, Pilar; López Gatius, Fernando; Yániz Pérez de Albéniz, Jesús; García Ispierto, Irina; Nogareda, Carmina; Bech Sàbat, Gregori; Serrano, Beatriz; Almería, S. (Elsevier, 2009)This study was designed to assess the reproductive performance of Neospora caninum–infected dairy cows (Bos taurus) after abortion. The population examined was composed of 92 aborting cows subsequently subjected to at ... -
Effect of PRID-Delta devices associated with shortened estrus synchronization protocols on estrous response and fertility in dairy cows
López-Helguera, Irene; López Gatius, Fernando; García Ispierto, Irina; Serrano, Beatriz; Colazo, Marcos G. (De Gruyter Open, 2017)This study evaluated the effect of a once-used progesterone (P4) intravaginal device (PRID) associated with four different shortened P4-based estrus synchronization (ES) protocols on estrous response (ER) and pregnancy per ... -
Effect of utilization of single or double prostaglandin administration within an ovsynch fixed-time artificial insemination protocol during summer season in dairy cows
Morini, Giorgio; López Gatius, Fernando; García Ispierto, Irina; De Rensis, F. (De Gruyter Open, 2019-07-30)This study investigated the fertility of dairy cows during summer season after treatment with a single or double PGF2α in a progesterone (P4)-based Ovsynch protocol for fixed-time artificial insemination (FTAI). The data ... -
Effects of crossbreed pregnancies on the abortion risk of Neospora caninum-infected dairy cows
Almería, S.; López Gatius, Fernando; García Ispierto, Irina; Nogareda, Carmina; Bech Sàbat, Gregori; Serrano, Beatriz; Santolaria Blasco, Pilar; Yániz Pérez de Albéniz, Jesús (Elsevier, 2009)Previous studies have shown that the use of beef bull semen significantly reduces the rate of abortions due to Neospora caninum in artificially inseminated (AI) seropositive dairy cows. In addition, certain beef breeds ... -
Effects of different five-day progesterone-based fixed-time AI protocols on follicular/luteal dynamics and fertility in dairy cows
García Ispierto, Irina; López Gatius, Fernando (Society for Reproduction and Development, 2014)This study compares in two experiments the responses of lactating dairy cows to four different progesterone-based protocols for fixed-time artificial insemination (FTAI) in terms of their effects on follicular/luteal ... -
Effects of different five-day progesterone-based synchronization protocols on the estrous response and follicular/luteal dynamics in dairy cows
López Gatius, Fernando; López-Helguera, Irene; García Ispierto, Irina; De Rensis, F. (Society for Reproduction and Development, 2015)This study compared the responses shown by lactating dairy cows to four different P4-based protocols for AI at estrus. Cows with no estrous signs 96 h after progesterone intravaginal device (PRID) removal were subjected ... -
Effects of twin pregnancy prevention strategies such as GnRH dose and drainage of the smaller follicle on ovulation in dairy cows with two follicles of pre-ovulatory size in the same ovary
García Ispierto, Irina; López Gatius, Fernando (Society for Reproduction and Development, 2020-05-30)We examined the effects of a single or 2.5-fold dose of dephereline [a gonadotropin-releasing hormone (GnRH) analogue] as well as the drainage of the smaller follicle at the time of insemination on ovulation in dairy cows ... -
Factors affecting the response to the specific treatment of several forms of clinical anestrus in high producing dairy cows
López Gatius, Fernando; Mirzaei, A.; Santolaria Blasco, Pilar; Bech Sàbat, Gregori; Nogareda, Carmina; García Ispierto, Irina; Hanzen, Ch.; Yániz Pérez de Albéniz, Jesús (Elsevier, 2008)This study was designed to examine estrous response rates to the therapeutic treatment of clinical anestrus in high producing dairy cows and to identify the factors that could affect these rates. Cows with silent ovulation ... -
Foetal death in naive heifers inoculated with Neospora caninum isolate Nc-Spain7 at 110 days of pregnancy
Almería, S.; Serrano, Beatriz; Darwich, Laila; Molina Terrén, Domingo; Mur-Novales, Ramon; Regidor-Cerrillo, Javier; Cabezón, Oscar; Pérez-Maillo, Mónica; López-Helguera, Irene; Fernández-Aguilar, Xavier; Puig-Ribas, Maria; Ortega-Mora, Luis Miguel; García Ispierto, Irina; Dubey, Jitender P.; López Gatius, Fernando (Elsevier, 2016-09)Neospora caninum infection is a leading cause of abortion in cattle worldwide. The pathogenesis of bovine neosporosis, particularly during the second term of gestation when most abortions occur in naturally infected dams, ... -
Improved embryo survival following follicular drainage of subordinate follicles for twin pregnancy prevention in bi-ovular dairy cows
García Ispierto, Irina; López Gatius, Fernando (Society for Reproduction and Development, 2020-02-14)To prevent twin pregnancies in cattle, a simple transvaginal device can be used for follicular drainage. This study examines embryo survival following follicular drainage of the smaller pre-ovulatory follicle at timed ... -
Inducing Ovulation with hCG Improves Fertility Outcomes of Co-Dominant Follicle Drainage to Avoid Twin Pregnancy in Dairy Cows
García Ispierto, Irina; Pando, Mònica; Llobera-Balcells, Mònica (MDPI, 2021-01-12)Twin pregnancies are undesirable in dairy cattle as they dramatically compromise cow lifespan and, consequently, herd economy. Clinical problems in cows arise from the time of pregnancy diagnosis to pregnancy loss, abortion, ... -
Inducing ovulation with hCG in a five-day progesterone-based fixed-time AI protocol improves the fertility of anestrous dairy cows under heat stress conditions
García Ispierto, Irina; De Rensis, F.; Casas, X.; Caballero, F.; Serrano Pérez, Beatriz; López Gatius, Fernando (Elsevier, 2019-01-15)This study compares the fertility effects of inducing ovulation using human chorionic gonadotropin (hCG) versus gonadotropin releasing hormone (GnRH) at the end of a 5-day progesterone(P4)-based protocol for fixed-time ... -
Luteal activity following follicular drainage of subordinate follicles for twin pregnancy prevention in bi-ovular dairy cows.
López Gatius, Fernando; García Ispierto, Irina; Serrano Pérez, Beatriz; Balogh, Orsolya G.; Gábor, György; Hunter, Ronald Henry Fraser (Elsevier, 2019-06-01)Twin pregnancy is undesirable in dairy cattle. This study examines luteal activity following ultrasound-guided puncture and drainage of the smaller pre-ovulatory follicle at timed AI in cows with a pre-ovulatory follicle ... -
Manual Rupture Versus Transvaginal Ultrasound-guided Aspiration of Allanto-amniotic Fluid in Multiple Pregnancies: A Clinical Approach to Embryo Reduction in Dairy Cattle
Andreu Vazquez, Cristina; García Ispierto, Irina; López Gatius, Fernando (Society for Reproduction and Development, 2012)To avoid the problems associated with twinning in dairy cattle, one of the embryos may be eliminated. This study compares the effect on pregnancy maintenance of two embryo reduction techniques, manual rupture (MR) and ... -
Neospora caninum and coxiella burnetii seropositivity are related to endocrine pattern changes during gestation in lactating dairy cows
García Ispierto, Irina; Nogareda, Carmina; Yániz Pérez de Albéniz, Jesús; Almería, S.; Martínez Bello, D.; López Gatius, Fernando; de Sousa, N. M.; Beckers, J. F. (Elsevier, 2010)Q fever is a zoonotic infection caused by Coxiella burnetii that is endemic worldwide. Domestic ruminants are a source of infection for humans. Given the suggestion that the bacterium recrudesces during pregnancy in cattle, ...