Results 51 to 60 of about 2,055 (165)

Practical Ovsynch Programs

, 2007
Reproductive efficiency is a major factor contributing to efficiency, profitability and sustainability of dairy farms. Estimates of economic loss due to reproductive inefficiencies range from $1 to 5 billion per year.
Pursley, J. Richard
core   +1 more source

Reproduction biotechnology in buffaloes: optimization of synchronization protocol for target breeding [PDF]

, 2013
The achievement of early cyclicity after calving is of vital importance in maintaining a dairy industry. Post-partum anoestrous in buffalo is a major cause of long calving interval and infertility resulting in economic loss to buffalo breeders.
Mollah, Mohammad Habibur Rahman
core  

Efficiency of the Ovsynch protocol in Santa Inês ewes [PDF]

, 2009
Twenty six Santa Inês ewes were asigned to three treatments to evaluate the efficiency of the Ovsynch protocol. In the treatment 1 - control (n=8), the estrus was synchronized with sponges containing 60 mg MAP for 14 days.
Rodrigues, L. F. S., O.M. Almeida, F.N. Loureiro, Moura, A. C. B., Sousa, H. L. L., Penha Filho, M. M., Oliveira, M. E. F. [UNESP], Cordeiro, M. F. [UNESP], M.F. Cordeiro, H.L.L. Sousa, W.R.R. Vicente, P.P.M. Teixeira, Almeida, O. M., A.C.B. Moura, L.F.S. Rodrigues, Vicente, W. R. R. [UNESP], Oliveira, M. E. F., Teixeira, P. P. M., M.E.F. Oliveira, Loureiro, F. N., M.M. Penha Filho, Cordeiro, M. F., Vicente, W. R. R.   +22 more
core   +1 more source

The Impact of Feeding Organic Trace Minerals Using Advanced Chelate Technology on Reproductive Efficiency and Blood Parameters in Ghezel Ewes

Veterinary Medicine and Science, Volume 12, Issue 2, March 2026.
Supplementing the flushing diet with organic trace minerals based on advanced chelate technology enhanced the reproductive performance of ewes as compared with inorganic trace minerals. ABSTRACT Background The bioavailability of trace minerals (TM) in a diet is important for improving reproductive performance and fertility parameters.
Sedigheh Vatankhah, Marziyeh Ebrahimi, Gholamali Moghaddam, Davoud Kianifard, Akbar Taghizadeh, Reza Asadpour, Mohammad Hassan Nazaran   +6 more
wiley   +1 more source

Extracellular Vesicles Derived From Antral Follicles Significantly Change the Transcriptional Profile of Cumulus Cells and Oocytes During Pre‐In Vitro Maturation in Cattle

Molecular Reproduction and Development, Volume 92, Issue 11, November 2025.
ABSTRACT Cumulus‐oocyte complexes (COCs) used for in vitro production (IVP) of bovine embryos originate from antral follicles of different sizes, leading to variations in developmental competence. To address this, pre‐in vitro maturation (pre‐IVM) allows oocytes with additional time to acquire developmental competence.
Gisele Zoccal Mingoti, Giovana Barros Nunes, Mirela Brochado Souza‐Cáceres, Cintia Rodrigues da Silva, Ricardo Perecin Nociti, Flávia Florêncio de Athayde, Henry David Mogollón‐García, Natália Marins Bastos, Paola Maria Silva Rosa, Lindomar de Oliveira Alves, Sérgio Antonio Garcia Pereira‐Júnior, Fernanda Fagali Franchi, João Carlos Pinheiro Ferreira, Juliano Coelho da Silveira, Marcos Roberto Chiaratti   +14 more
wiley   +1 more source

Fertility of lactating dairy cows inseminated with sex-sorted or conventional semen after Ovsynch, Presynch–Ovsynch and Double-Ovsynch protocols

, 2019
The objective was to compare pregnancy per artificial insemination (P/AI) with conventional (CS) or sex-sorted semen (SS) in dairy cows subjected to one of the three timed AI protocols.
Santos, Jose E. P., Gümen, Ahmet, Karakaya, Ebru Bilen   +2 more
core   +1 more source

Gestación en vacas lecheras con dos protocolos de sincronización de la ovulación e inseminación a tiempo fijo

Revista Mexicana de Ciencias Pecuarias, 2015
Se comparó la tasa de gestación (TG) en vacas lecheras inseminadas a tiempo fijo mediante dos protocolos. El día 32 posparto, 275 vacas recibieron dos inyecciones de PGF2α con intervalo de 14 días.
Silvano Flores Domínguez, Luis Ramón Muñoz Flores, Reyes López Ordaz, Carlos Fernando Aréchiga Flores, Gabriela Mapes, Joel Hernández Cerón   +5 more
doaj   +3 more sources

Subclinical Ketosis: Reproductive Performance and Milk Yield in Dairy Cows Receiving Oral Glucogenic Precursors During Early Postpartum Period

Veterinary Medicine and Science, Volume 11, Issue 5, September 2025.
This study evaluated the effects of postpartum subclinical ketosis on milk yield and reproductive performance in dairy cows. Subclinical ketosis did not adversely affect milk yield or pregnancy rates in cows inseminated after estrus detection and a fixed‐time insemination protocol.
Baris Guner, Aslihan Ayalp Erkan, Buse Ozturk, Olcay Sarikaya, Omer Kaan Tekin, Erkamgediz Tosun, Hidir Gencoglu   +6 more
wiley   +1 more source

Evaluation of the Accuracy and Performance of Two Commercial Pregnancy‐Associated Glycoprotein Tests for Early Pregnancy Detection in Cows

Veterinary Medicine and Science, Volume 11, Issue 2, March 2025.
Early pregnancy diagnosis contributes to increasing productivity and profitability in dairy farms. The performance of AOPT and AMPT used for early pregnancy diagnosis in dairy cattle was evaluated for the first time together. AOPT and AMPT are practical methods for early pregnancy diagnosis, 28 days after insemination in dairy cows. ABSTRACT The aim of
Tarik Safak, Kenan Çağrı Tümer, Yağmur İpek Alp, Taha Yasin Özen, Oznur Yilmaz‐Koc   +4 more
wiley   +1 more source

A Comparative Analysis of Double-Ovsynch and Ovsynch-Heat-Synch Protocols on Pregnancy Rates in Primiparous Dairy Cows [PDF]

Veterinary and Comparative Biomedical Research
Today, ovulation synchronization methods are widely used to improve fertility in dairy cows. In this regard, this research was conducted in one of the dairy herds in East Azerbaijan province, Iran. The cows were randomly divided into two groups.
Reza Ghasemian Moghadam, Afshin Davasaz Tabrizi, Arian Narouiee, Omid Mohammadpour   +3 more
doaj   +1 more source