🎤 Oral
Reproduction in Dairy Cattle
2022
RD-01
Effect Of Treatment Of Phantom Cows With A Progesterone- E Based Synchrony Programme P
Greg Chambers et al.
Z Oamaru, New Zealand
Objectives: To determine the effect of a progester- one-based synchrony programme on the daily hazard of con- c ception and the probability of being pregnant at the end of n the seasonal mating period in cows n
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-02
Valuating The Cost-Effectiveness Of Diagnosing And Treating Hantom Cows In Seasonal-Calving Dairy Herds
reg Chambers et al.
amaru, New Zealand
Objectives: The objective of this study was to explore the ost-effectiveness of using a progesterone-based synchro- y program to manage phantom cows on seasonal-calving airy farms. Phantom cows were defined as
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-03
Embryo Production In Dairy Cattle After Superovulation With Gonadotrophin Preparation- Effect Of Variability In Fsh/Lh Ratio-
Santiago Fuentes Ibañez et al.
Veterinary Medicine, University of León, León, Spain, LEÓN, Spain.
Introduction and objectives: Ovarian superstimulation of dairy heifers and cows is a practical tool to increase offspring from females of high genetic merit. The success of superovu- lation and embryo recovery
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-04
Quantification Of Reproductive Hormone Use In Dutch Dairy Herds: "From No Treatment To Excessive Use"
Savannah Van Der Laan et al.
Utrecht University, Utrecht, Netherlands
Objectives: Globally, reproductive hormones are used in the dairy industry to increase reproductive efficiency and, hence, to increase the longevity of dairy cows. The number of treatments seems to vary signifi
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-05
Progesterone Based Heifer Re-Synchrony In An Extensive Pasture Grazing System: A Case Study
Kristen Baxter et al.
Services, Oamaru, New Zealand
Objective: The objective of this study was to determine if a synchrony/re-synchrony programme would prove effective in achieving a pregnancy rate of >85% in 3 cycles. New Zealand dairy heifers are typically rai
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-06
Association Between Infectious Diseases With Late Embryonic Losses In Supplemented Grazing Dairy Cow
Luis Ernesto Quintero Rodriguez et al.
Instituto de Investigaciones en Reproducción Animal (INIRA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata (FCV-UNLP), 30, Argentina
Objectives: To evaluate the association between Bovine Viral Diarrhea (BVD) and Infectious Bovine Rhinotracheitis (IBR) with the odds for late embryonic losses (LEL) in supple- mented grazing dairy cows in Arge
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-07
Risk Factors For Anovulation And Its Association With Reproductive Performance In A Herd Of Grazing Dairy Cows
German Ariel Dominguez et al.
Rodolfo Luzbel De La Sota4. Private Practice, Venado Tuerto, Santa Fe, Argentina
Objective: The objectives of this study were to assess the risk factors for anovulation and its association with reproduc- tive performance in a herd of grazing dairy cows. Material and Methods: A retrospective
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-08
Relationship Between Reproductive Performance And Q-Fever In Dairy Herds In Brittany (France)
Vincent Jegou et al.
Poufragan, France
Objectives: Coxiella burnetii is a small intracellular bacte- rium responsible for Q Fever in animals and humans. In cattle, Q fever is a major cause of abortion: 2nd cause according to the French observatory o
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-09
Evaluation Of The Impact Of Multifactorial Parameters To Improve Activity-Based Heat Detection Systems
Hila Kroll et al.
Objectives: Heat detection devices have traditionally been using changes in the activity pattern of female cows. This is either done via recording of simple parameters such as the number of steps, detection of specific movements (mounting behavior),
Materials & Methods: A total of 15,000 activity increase alerts with a very low threshold (about 25% activity index in- crease) were collected from about 3,000 cows in 7 commercial farms, with all cows on farm
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-10
Pastoral Dairy Bull Procurements And Management Effects On Fertility
Kate Mitchell et al.
Scottsdale Veterinary Services/University of Melbourne, Scottsdale, Tasmania, Australia
Objective: Dairy herd bulls are utilised on most farms as a backup to AI in the southern Australian dairy system. The current recommendations for their management include the purchasing and movement of bulls on
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-11
The Effect Of Integrin Binding Domain Peptide And C-Terminal Fragment Of Osteopontin On Restoring The Endometrial Egf Abnormality In Repeat Breeder Dairy Cows
Takashi Tanida et al.
Laboratory of Theriogenology, Department of Clinical Sciences, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
Objectives: In fertile cows, epidermal growth factor (EGF) concentrations in the endometrium show two peaks on days 2-4 and 13-14 of the estrous cycle. The absence of EGF peaks in the endometrium has been linke
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-13
Reproductive Prolapse In Cows In Western Thailand:
Grades et al.
Kasetsart University, Kamphaengsaen, Nakhon Pathom, Thailand.
Objectives: This study determined grades, severity and treatment of reproductive prolapse in cows in western Thai- land. Materials and methods: This study investigated the re- productive prolapse cases submitte
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-14
Comparison Of Three Different Reproductive Management Strategies For Lactating Dairy Cows Emphasizing Detection Of Oestrus Or Synchronization Of Ovulation And Timed Artificial Insemination (Tai)
Richard Vazquez et al.
Lorenzo Viora1. University of Glasgow, Glasgow, United Kingdom
Objectives: The aim of this study was to compare three reproductive management strategies for first insemination of lactating dairy cows: Ovsynch; PRID-synch, both using oes- trus detection and subsequent timed
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-15
Effect Of Puerperal Metritis Occurrence On Reproductive Efficiency And Milk Production In Grazing Dairy Cow
Santiago Corva et al.
Practice, Venado Tuerto, Santa Fe, Argentina.
Objective: The objective of this study was to estimate the effect of puerperal metritis (PM) occurrence on reproductive efficiency and milk production in a dairy farm in Argentina (~2800 milking cows). Material
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-16
Purulent Vaginal Discharge Score And Its Association With Subsequent Reproductive Performance In Seasonal-Calving, Pasture-Based Dairy Cows
Eber Rojas Canadas et al.
The Ohio Sate University, columbus, United States
Objectives: Uterine infection diminishes reproductive per- formance in cattle. The use of Metricheck® to assess purulent vaginal discharge (PVD) may help to identify uterine patholog- ical condition. The object
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-17
Effects Of Thermal Stress On Pregnancy Characteristics In Dairy Cows
Ioannis Nanas et al.
Greece.
Objectives: Due to global warming, the adverse effects of heat stress (HS) on dairy cattle welfare and production are gradually extending in northern latitudes. The combination of high ambient temperatures and
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-18
The Effect Of Coxiella Burnetii Inactived Vaccine On Reproductive Parameters And Milk Yield In Holstein Cows
Gulnaz Yilmazbas-Mecitoglu et al.
Bursa Uludag University, Bursa, Turkey
Objectives: The aim of this study was to determine the effect of Coxiella burnetii inactivated vaccine on reproductive parameters and milk yield in Holstein cows. Material & Methods: A total of 575 pregnant cow
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-19
Hh1 Double-Carrier Embryos Develop Normally To Elongated Conceptuses
Alejandra C Quiroga et al.
INIA-CSIC, Madrid, Spain.
Objectives: Intensive genotyping of Holstein population has identified deleterious haplotypes impacting fertility. These haplotypes are never found in homozygosity indicating that double-carrier (i.e., homozygo
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-20
Effect Of Clinical And Subclinical Mastitis Treatment With Meloxicam On Clinical Cure And Fertility Of Dairy Cows In Ecuador
Christian Albuja Arroba et al.
Rodolfo Luzbel De La Sota3. Facultad de Medicina Veterinaria y Zootecnia, Universidad Central de Ecuador, Quito, Ecuador
Objective: To study the effect of clinical and subclinical mastitis treatment with meloxicam on clinical cure rate and fer- tility of dairy cows in Ecuador. Material and Methods: Holstein cows from two dairy he
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-21
Injuries Of The Bovine Birth Canal After Eutocia
Theresa Maria Scheu et al.
Educational and Research Centre for Animal Husbandry, Hofgut Neumuehle, Münchweiler an der Alsenz, Germany
Objectives: While there is numerous of literature describ- ing the involution of the uterus after unassisted birth, there is little information available about possible alterations of the soft birth canal in co
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-22
Influence Of Different Factors On Fertility Of Dairy Cows Submitted To Fertility Protocols For First Insemination Post- Partum And For Resynchronization A. Francisco Álvarez Baldor.
AFRIVEPA et al.
Objectives: The use of “fertility protocols” for artifi- cial insemination (AI) at fixed time adding improvements to Ovsynch®, as presynchronization, use of a progesterone de- vice and two doses of prostaglandin F2α (PG), has showed increases of conc
In this study we tried two protocols for first AI: the G6G pro- tocol, modified to end as Cosynch (with the last GnRH dose at the same time of AI), with 6 handlings, that lasts for 18 days, and a 7 d Cosynch pl
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-23
Adiponectin And Chemerin In The Endometrium Of Postpartum Dairy Cows With Cytological Endometritis
Gonçalo Pereira et al.
Silva1, Christelle Ramé2, Joelle Dupont2, Patrice Humblot3, Luis Lopes-Da-Costa1. CIISA - Centro de Investigação Interdisciplinar em Sanidade Animal Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal
Objective: To evaluate the relationship between the gene transcription and expression of Adiponectin (ADIPOQ, AD- IPOR1 and ADIPOR2) and Chemerin (RARRES2 and CM- KLR1), and the inflammatory status of the uteru
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-24
The Effect Of Postpartum Metabolic Diseases On Fertility In Lactating Dairy Cows
Gulsum Selcuk Kaya et al.
Bursa, Turkey. Postpartum (PP) metabolic disorders may become more important for the modern high producing lactating dairy cows.
The aim of this study was to evaluate the effect of PP meta- bolic disorders on fertility in dairy cows. The study was con- ducted in a dairy farm with 5000 lactating dairy cows and milk yield was 11.148 kg for
🎤 Oral
Reproduction in Dairy Cattle
2022
RD-25
Key Performance Indicators Used By Dairy Consultants During The Evaluation Of Reproductive Performance In A First Visit
Ramon Armengol et al.
Universitat de Lleida, Lleida, Spain
Objectives: The purpose of this study was to (1) describe the KPI that consultants specialized in dairy reproduction use to assess the reproductive status of a conventional dairy farm in a first visit, (2) cate