Multiple ovulation was positively associated with milk yield independently of circulating progesterone concentrations in multiparous high-producing Holstein cows submitted to Double-Ovsynch.

The present study aimed to determine the relationship between circulating progesterone (P4) concentrations and milk yield during the ovulatory follicular wave on the proportion of multiple ovulation in multiparous high-producing Holstein cows (n = 1,345). First-service multiparous cows submitted to a Double-Ovsynch program (GnRH; 7 d later, PGF; 3 d later, GnRH; 7 d later, GnRH [G1]; 7 d later, PGF [PG1]; 1 d later, PGF; ~32 h later, GnRH [G2]; ~16 h later, timed AI [TAI]) were used. To assess ovulatory response and proportion of multiple ovulation (MOV), ovarian ultrasonography examinations were performed at G1 (n = 1,215) and G2 (n = 1,345) and from 40 to 48 h after each GnRH.

Strategies to increase circulating progesterone in late metestrus and early diestrus in recipient dairy heifers and cows: A focus on induction of accessory corpus luteum formation.

The capacity of recipients to support transferred embryos is a challenge for dairy cattle production systems. This review explores methods for increasing P4 to improve early pregnancy establishment in dairy cattle. A key aspect of P4 supplementation during the critical first weeks of pregnancy is its correlation with successful embryo elongation.

Effect of gonadorelin dose and an additional gonadorelin treatment 2 d after the initiation of Resynch-25 on ovarian dynamics and fertility of lactating Holstein cows.

Our objective was to improve ovulatory response at the initiation of the Resynch-25 protocol by (1) increasing the dose of GnRH from 100 µg to 200 µg; and (2) giving a second GnRH treatment 56 h after the initiation of the protocol. We considered the experimental d 0 the day of the previous service. The experiment consisted of a 2 × 2 factorial design to compare the main effects of GnRH dose (100 vs.

The Empty Office: protocol for sequential mixed-method study on the impact of telework activities on social relations and well-being.

Introduction: Teleworking is one of the most significant legacies of the pandemic. Great attention is now being paid to its effects on workers' health. One of the arguments that emerged on this issue is that 'working away from the office' affects the time we spend with significant others.

Respiratory Syncytial Virus associated hospitalisations in children up to 6 years of age in Italy: a systematic review.

Introduction: Respiratory syncytial virus is a leading cause of respiratory hospitalisations in infants. This systematic review (registration number: CRD42021248309) aims to synthesise the available evidence on Respiratory Syncytial Virus-related hospitalisations among children aged 0 to 6 years in Italy.

Methods: The literature search was conducted on PubMed, Embase, Scopus, and International HTA, covering the period from January 2000 to July 2022, with a focus on studies that reported information on Respiratory Syncytial Virus-associated hospitalisation in children aged 0-6 years in Italy.