ArticleBrazilian journal of veterinary medicine2026
Evaluation of the response of creole cows (
Article in Brazilian journal of veterinary medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Unlike specialized breeds, High-Andean Creole cattle have developed a remarkable adaptability and hardiness to challenging high-altitude conditions, albeit at the expense of productivity. However, the efficiency of their reproductive performance under estrus synchronization protocols for fixed-time artificial insemination (FTAI) remains scarcely addressed. This study aimed to evaluate the response of Creole cows to two FTAI protocols in the districts of Chuschi (Cangallo) and Chipao (Lucanas), Ayacucho, Peru. From a sample of 60 Creole cows (identified by phenotype and coat color), with uniform body condition scores and management system, 35 were synchronized using a three-handling protocol (T1: estradiol cypionate and Bovine Intravaginal device (BID) removal on day 8), and 25 using a four-handling protocol (T2: BID removal on day 7 and estradiol benzoate on day 8). The cows were inseminated using thawed semen from Fleckvieh and Brown Swiss bulls, the latter belonging to the genetic nucleus of the Instituto Nacional de Innovación Agraria. Estrus detection rates ranged from 88.6% to 80.0%, yielding pregnancy rates of 57.1% and 56.0% for T1 and T2, respectively (p>0.05). No significant effects of protocol, age, number of calvings, body condition score, or bull breed were found on estrus detection, pregnancy, or calf sex (p>0.05). However, cows with a corpus luteum had 7.1-fold higher odds of pregnancy than those presenting only follicles (p<0.05). In conclusion, both FTAI protocols demonstrated comparable reproductive performance; however, the three-handling protocol with estradiol cypionate emerges as the preferred option due to its lower cost and greater operational simplicity under challenging High-Andean conditions.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.