Effect of circulating prolactin, lactation days, and seasonal variations on first artificial insemination pregnancy rates using the PG7G protocol in dairy cows

Effect of circulating prolactin, lactation days, and seasonal variations on first artificial insemination pregnancy rates using the PG7G protocol in dairy cows

Background and Aim: Dairy farm profitability is linked to milk yield and reproductive efficiency. High prolactin levels during lactation can negatively impact fertility. Timed AI protocols like PG7G are used to improve pregnancy rates. This study investigates the effects of extending the voluntary w...

Full description

Saved in:

Bibliographic Details
Main Authors:	Mufeed A. Alnimer, Mohamed A. Abedal-Majed, Mohmmad Al-Qaisi, Ahmad I. Shamoun
Format:	Article
Language:	English
Published:	Veterinary World 2025-01-01
Series:	Veterinary World
Subjects:	dairy cows days in milk pregnancy rate prolactin season timed artificial insemination
Online Access:	https://www.veterinaryworld.org/Vol.18/January-2025/5.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

Similar Items

Effect of timing of artificial insemination with conventional or sex-sorted semen on fertility of lactating dairy cows
by: V.G. Santos, et al.
Published: (2025-08-01)

Fertility programs for lactating dairy cows: A novel presynch + timed artificial insemination program (Double E-Synch) produces similar ovarian dynamics, synchronization, and fertility as Double-Ovsynch
by: Carlos E.C. Consentini, et al.
Published: (2025-04-01)

Effect of a single prostaglandin F2α presynchrony 3 to 4 days prior to treatment of anestrous dairy cows with a novel intravaginal progesterone-releasing device and Ovsynch
by: S. McDougall, et al.
Published: (2025-06-01)

Effect of a mix of condense and hydrolysable tannins feed additive on lactating dairy cows’ services per conception and days open
by: Alejandro R Castillo, et al.
Published: (2025-03-01)

The Successful Artificial Insemination with Frozen Semen from Different Genetic Qualities of Friesian Holstein Bull
by: Aulia Puspita Anugra Yekti, et al.
Published: (2024-12-01)

Reproductive outcomes of lactating dairy cows submitted to first timed artificial insemination protocols with different strategies to induce final ovulation
by: Carlos E.C. Consentini, et al.
Published: (2025-01-01)

Determining the Factors Affecting 305-Day Milk Yield of Dairy Cows with Regression Tree
by: Serdar Genç, et al.
Published: (2021-07-01)

Longitudinal characterization of the muscle metabolome in dairy cows during the transition from lactation cessation to lactation resumption
by: H. Sadri, et al.
Published: (2025-01-01)

Grape pomace supplementation reduced methane emissions and improved milk quality in lactating dairy cows
by: A. Akter, et al.
Published: (2025-03-01)

Neutrophil phagocytosis and respiratory burst activity of dairy cows during the transition period and early lactation
by: Marina Žekić-Stošić, et al.
Published: (2018-10-01)

Effect of feeding mechanically processed alfalfa silage on production performance of mid-lactation dairy cows
by: K.M. Kennedy, et al.
Published: (2025-01-01)

SOME INDICATORS OF COMFORT IN DAIRY COWS –A REVIEW PART 1
by: G. Bachevska, et al.
Published: (2025-06-01)

Prepartum and postpartum concentrations of lipids and lipoproteins in dairy cows
by: Mutlu Sevinç, et al.

Prolactin-mediates a lactation-induced suppression of arcuate kisspeptin neuronal activity necessary for lactational infertility in mice
by: Eleni CR Hackwell, et al.
Published: (2025-01-01)

Myo-inositol affects the health, metabolome, and lactation performance of peripartum dairy cows
by: Chun-zheng Wang, et al.
Published: (2025-06-01)

Advances in Timed Artificial Insemination: Integrating Omics Technologies for Enhanced Reproductive Efficiency in Dairy Cattle
by: Jesse Oluwaseun Ayantoye, et al.
Published: (2025-03-01)

The effect of animal-related and some environmental effects on daily milk production of dairy cows under the heat stress conditions
by: Nenad Mićić, et al.
Published: (2022-01-01)

Direct-fed microbials optimize ruminal fermentation, microbial ecosystem and milk quality to enhance the lactation performance of Sanhe dairy cows
by: Aoyu Jiang, et al.
Published: (2025-07-01)

Effect of the Lactation Phases on the Amplitude of Variation in Blood Serum Steroid Hormones and Some Hematochemical Analytes in Three Dairy Cow Breeds
by: Esterina Fazio, et al.
Published: (2024-11-01)

Milk lipidome alterations in first-lactation dairy cows with lameness: A biomarker identification approach using untargeted lipidomics and machine learning
by: Ana S. Cardoso, et al.
Published: (2025-06-01)

Lactational Performance of Early-Lactation Dairy Cows Fed Forages Produced by Two Different Crop Production Programs
by: David P. Casper, et al.
Published: (2025-06-01)

The Cow Paradox—A Scoping Review of Dairy Bovine Welfare in India Using the Five Freedoms
by: Chirantana Mathkari
Published: (2025-02-01)

Metabolic mechanism of hepatic steatosis affecting production performance of dairy cows during peak lactation
by: LIU Xiaoyi, et al.
Published: (2024-10-01)

Milk production and composition and metabolic alterations in the mammary gland of heat-stressed lactating dairy cows
by: Cai-yun FAN, et al.
Published: (2019-12-01)

Delaying induction of ovulation and timed artificial insemination in a Double-Ovsynch protocol increased expression of estrus and altered first-service reproductive outcomes of lactating dairy cows
by: A.L. Laplacette, et al.
Published: (2025-01-01)

Productivity of Holstein cows with early insemination of heifers
by: I. Kepkalo, et al.
Published: (2024-11-01)

Impact of non nutritional factors on milk urea concentration and its relationship with production and fertility traits in Vojvodina dairy herds
by: Ksenija Čobanović, et al.
Published: (2017-01-01)

A Survey Study on Management Practices Associated With Voluntary Waiting Period and Its Effects on Reproductive Performance of dairy cows in Iranian Dairy Farms
by: Behnaz Mirzaie, et al.
Published: (2024-11-01)

Prediction of Milk Yield and Lactation Curve of Dairy Cows: A Comparative Analysis of Three Mathematical Models in Tropical Smallholder Dairy Farm
by: Aswah Ridhowi, et al.
Published: (2025-06-01)

The fecal microbiota of Holstein cows is heritable and genetically correlated to dairy performances
by: L. Brulin, et al.
Published: (2024-12-01)

Mastitis in Dairy Cows: Current Knowledge
by: Kwestan Najm Ali, et al.
Published: (2024-06-01)

Ultrasound Back-Fat Thickness Association with Risk of Metabolic Disease of Dairy Cows in Early Lactation
by: Filippo Fiore, et al.
Published: (2025-03-01)

The economic impact of purulent vaginal discharge in dairy herds within a single lactation
by: O.A. Ojeda-Rojas, et al.
Published: (2025-03-01)

Improving market (cull) dairy cows' carcass traits and meat quality
by: N. Berdusco, et al.
Published: (2024-12-01)

Previous Lactation Risk Factors Associated with Hyperketonemia in the First Week Postpartum in Dairy Cows: A Retrospective Analysis
by: Mahmoud H. Emam, et al.
Published: (2025-06-01)

The use of the two different mycotoxin deactivators in the nutrition of dairy cows
by: Igor Jajić, et al.
Published: (2022-01-01)

Effectiveness of Formalin Footbaths in the Control of Digital Dermatitis in Dairy Cows
by: Mudroň Pavol
Published: (2024-12-01)

Self-control design reveals varied lactation and metabolic responses to rumen-protected methionine in dairy cows
by: Zi-Hai Wei, et al.
Published: (2025-01-01)

Changes in white blood pictures and some biochemical parameters of dairy cows in peripartum period and early lactation
by: Mirjana Joksimović Todorović, et al.
Published: (2012-06-01)

Supplementation with ursodeoxycholic acid and bile salt benefits lactation performance, health, and rumen and fecal microbiota of transition dairy cows
by: Fei-Xiang Fan, et al.
Published: (2025-06-01)