Timed-AI after synchronization of ovulation has become one of the most used reproductive
technologies developed during the past 40 years. Various adaptations of this technology are …

Superovulation protocols have evolved greatly over the past 40 to 50 years. The
development of commercial pituitary extracts and prostaglandins in the 1970s, and partially …

Generalized Linear Mixed Models: Modern Concepts, Methods and Applications presents
an introduction to linear modeling using the generalized linear mixed model (GLMM) as an …

This study evaluated a novel presynchronization method, using Ovsynch prior to the
Ovsynch-timed AI protocol (Double-Ovsynch) compared to Presynch-Ovsynch. Lactating …

Simple Summary Reproductive efficiency is critical for profitability of dairy operations. The
first part of this manuscript discusses the key physiology of dairy cows and how to practically …

Lactating dairy cows are classified as spontaneous ovulators, in which establishment of
pregnancy depends on the accuracy of detection of behavioral estrus for correct timing of …

Estrus in dairy cattle varies in duration and intensity, highlighting the need for accurate and
continuous monitoring to determine optimal breeding time. The objective of this study was to …

Simple Summary Gonadotropin-releasing hormone (GnRH), a critical regulator of pituitary
gonadotropin secretion, plays a fundamental role in controlling physiological aspects of …

Our objective is to overview the research that lead to the development of fertility programs for
high-producing lactating dairy cows using only GnRH and Prostaglandin F 2α (PGF 2α) …

This study included 2 objectives. The first objective was to describe estrus-related changes
in parameters automatically recorded by the CowManager SensOor (Agis Automatisering …