🎤 Oral
Feedlot
2022
FE-07
Highthroughput Antibody And Cellular Immune Response Profiling Against Respiratory Pathogens In Calves Following A Preconditioning Protocol
Nathan Cebron et al.
France.
Objectives: Pre-conditionning of calves before entry in fattening units has been promoted as a good approach to re- duce antibiotics treatment against bovine respiratory diseases (BRD). Enhancing immunity to re
🎤 Oral
Feedlot
2022
FE-08
Activity, Rumination, And Performance Of Brd Treated Calves Compared To Their Own Baseline Activity And Healthy Cohorts
Jason S. Nickel et al.
Ontario, Canada.
Objectives: The objective of this study was to determine rumination, activity, and performance of cattle treated for BRD with Florfenicol-Flunixin Meglumine combination when com- pared to their own baseline and
🎤 Oral
Feedlot
2022
FE-09
Reduction In Brd Antimicrobial Treatments In A Us Feedlot- Based Multi-Site Study Using Conventional Brd Control Approach Vs. Targeted Prediction Technology
Jason S. Nickel et al.
Kansas, United States
Objective: The study objective was to determine if cattle health and performance comparing a targeted bovine respira- tory disease (BRD) prediction technology (BRD_PT; Whisper® On-Arrival) was superior to a neg
🎤 Oral
Feedlot
2022
FE-10
Environmental Sampling For Characterization Mannheimia Haemolytica Shedding By Feedlot Cattle
William B. Crosby et al.
Missippi State University, College of Veterinary Medicine, Departm of Pathobiology and Population Medicine, United States
Objective: Control and prevention of Bovine Respiratory Disease (BRD) is a major reason for treatment of cattle with antimicrobial drugs. However, the prevalence of antimicrobi- al resistance (AMR) is increasin
🖼️ Poster
Feedlot
2022
FE-P01
Classification System Of Calves At Entry Point Of A Feedlot As A Tool For Estimating Performance
Joao Vieira et al.
Lisbon, Portugal. The objectives of this study were to develop an individual calf classification system at entry point of a feedlot to estimate the performance in the feedlot. A classification system was created based on the following seven parameter
🖼️ Poster
Feedlot
2022
FE-P02
Effect Of Implant Treatments To Beef Steers Grazing California Native Range On Growth Performance Over 192 Days
M. Nichols et al.
Objectives: A 192-day grazing study was conducted at a commercial California cattle ranch to compare growth perfor- mance by steers implanted with one of 3 experimental treat- ments, which included a traditional implant intended for grass- fed cattle
Materials and Methods: Crossbred steers with British, Continental and/or Bos indicus breeding were sourced from Mexico. Cattle (n = 518; initial BW = 280 ± 1.8 kg) were ran- domized to treatments and implanted
🖼️ Poster
Feedlot
2022
FE-P03
Seroprevalence Of Respiratory Pathogens In Calves At Arrival In German Rearing Units
Egon Thesing et al.
Germany
Objectives: Respiratory disease is the biggest health problem in calf rearing. Especially after the grouping of several animals at the arrival in calf rearing units, there is a high infec tion pressure. In orde
🖼️ Poster
Feedlot
2022
FE-P04
Respiratory Vaccine Shows Positive Effect On Growth In Danish Calf Rearing Operations
Henrik Læssøe Martin et al.
Vertenten3. SEGES Innovation, Aarhus, Denmark
Objectives: Scientific documentation on the effect of vac- cines against respiratory infections under practical conditions is limited. When vaccines are used in a calf herd, the infectious pressure is usually c
🖼️ Poster
Feedlot
2022
FE-P05
Impact Of Injectable Mineral Supplementation On The Growth Of Beef Cattle Fed On A Rotational Grazing System In Uruguay
Gustave Decuadro et al.
Montevideo, Uruguay
Objectives: Phosphorus (P) deficiency is the most com- mon mineral deficiency worldwide in grazing ruminants. Based on the existing literature, P content of Uruguayan pasture ranges between 0.12 and 0.14%DM. Mo
🖼️ Poster
Feedlot
2022
FE-P06
Evaluation Of The Acceptability Of An Injection Of A Multimineral Solution In Veal Calves
Luc Durel et al.
Geollot2. Virbac, Carros, France
Objectives: Veal is the meat from calves. The veal indus- try mainly uses male calves, which are, in essence, inevitable by-products the dairy sector cannot valorise. The light colour of veal results from exclu
🖼️ Poster
Feedlot
2022
FE-P07
The Epidemiological Impact Of Bovine Respiratory Disease Complex In Feedlot Cattle From Three Brazilian States
Anderson Lopes Baptista et al.
lândia, Brazil.
Objectives: The aim of this study was to provide epide- miological data relative to BRD in cattle from three Brazilian states, as well as its economic impacts on livestock production during a two-years-period (
🖼️ Poster
Feedlot
2022
FE-P08
Metabolic Profile Of Cattle Fed With High-Grain Diets
Mike Menezes Pinto et al.
Ronaldo Francisco Lima2, Kedson Alessandri Lobo Neves3, Clara Satsuki Mori4, Enrico Lippi Ortolani4, Viviane Gomes4, Fernando José Benesi4. Laboratory of Animal Health, LARSANA, Federal University of Western Pará, UFOPA, Santarém, Brazil
Objectives: We aimed to evaluate to metabolic profile of cattle fed with two different high-grain diets, with 70% and 100% of concentrate. Materials and methods: The study was conducted at Santarém, Amazon, Bra
🎤 Oral
Feedlot
2022
GB-01
Estimated Breeding Values Of Dairy Sires Regarding Colostrum Traits
Aikaterini Soufleri et al.
Laboratory of Animal Husbandry, Faculty of Veterinary Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54 Thessaloniki, Greece, Thessaloniki, Greece
Objectives: Colostrum administration provides newborn calves with important nutrients (fat, protein, lactose) and im- munity (IgG). Significant heritability estimates have been re- ported on colostrum traits ra
🎤 Oral
Genetics and Breeding
2022
GB-02
The Genetic Architecture Of Susceptibility To Claw Horn Disruption Lesions In Holstein Cows
Matthew Barden et al.
Georgios Oikonomou1. University of Liverpool, Liverpool, United Kingdom
Objectives: Lameness is the most serious welfare prob- lem facing the modern dairy industry. The lesions associated with the greatest impact on animal welfare, and those which incur the greatest financial costs
🎤 Oral
Genetics and Breeding
2022
GB-03
Aging Increases Inflammatory Response In Dairy Cattle
Gilles Foucras et al.
Boyer Des Roches4, Dorothée Ledoux4, Valérie Gelin3, Christophe Richard3, Hélène Kiefer3, Hélène Jammes3. ENVT, Toulouse, France
Objectives: Old cows are reputed more sensitive to bacte- rial infections, developping more severe mastitis than youngest ones. However the biological basis of these observations are not known. Risk factors inc
🎤 Oral
Genetics and Breeding
2022
GB-04
Impact Of Host Genetics On Resistance Of Bovine Monocyte- Derived Macrophages To Mycobacterium Avium Subsp. Paratuberculosis Infection
Maria Canive et al.
NEIKER, Derio, Spain. The application of animal genetics in breeding programs is currently one of the important motors for efficient livestock production, not only to increase performance and productivity but also to ensure the resilience and health
🎤 Oral
Genetics and Breeding
2022
GB-05
Inherited Zinc Deficiency-Like Syndrome In Holstein Cattle Due To A Loss-Of-Function Mutation Of Il17Ra- Transmembrane Protein
Sickinger Marlene et al.
Lühken Gesine1. Justus-Liebig-University Giessen, Giessen, Germany
Objectives: Skin lesions and dermatoses in cattle are of- ten associated with infections due to bacteria, fungi or envi- ronmental risk factors. Dermatoses with genetic etiology have also been described. Among
🎤 Oral
Genetics and Breeding
2022
GB-06
Temperature-Humidity Effect On Rumination Time And Activity In Holstein And Crossbred Holstein X Jersey Cows
Roberto Kappes et al.
Universidade do Estado de Santa Catarina, Lages, Brazil. Table 1 – Mean values adjusted to the model ± standard deviation fo for rumination time and activity unit. Activity THI classes H F1 R1 Safe 5
Objective: We aimed to compare temperature-humid- ity effect on rumination time and activity in different genetic groups of cows: Holstein, F1 Holstein x Jersey and R1 3/4Hol- stein x Jersey. Material and metho
🎤 Oral
Genetics and Breeding
2022
GB-07
Conformation Traits And Characteristics Of Somatic Cells Counting In Holstein Cattle In Brazil - A Multivariate Approach
Angelica Scheid et al.
Universidade do Estado de Santa Catarina, Lages, Brazil.
Objectives: Identify the linear type traits which together affect the somatic cell count in Holstein cattle in Brazil. Material and methods: We used recorded data from ap- proximately 45,000 animals of the Hols
🎤 Oral
Genetics and Breeding
2022
GB-08
Dry Matter Intake, Body Condition Score And, Beta- Hydroxybutyrate Of Holstein And Crossbred Holstein X Simmental Cows During The Transition Period
Deise Knob et al.
Neto1. Universidade do Estado de Santa Catarina, Lages, Brazil
Objectives: We aimed at a comparison between purebred Holstein and crossbred Holstein x Simmental cows for dry matter intake (DMI), body condition score (BCS), body weight (BW) and β-hydroxybutyrate (BHB) durin
🎤 Oral
Genetics and Breeding
2022
GB-09
Milk Yield And Milk Composition During The First Three Weeks Of The Postpartum Period Of Holstein And Crossbred Holstein X Simmental Cows
Deise Knob et al.
da Vinci, Indaial, Brazil.
Objectives: We aimed at comparing purebred Holstein and crossbred Holstein x Simmental cows for milk yield (MY) and composition during the first three weeks after calving. Materials and Methods: The research wa
🎤 Oral
Genetics and Breeding
2022
GB-10
Genetic Analysis Of Juvenile Spastic Paresis In Romagnola Cattle
Joana G. P. Jacinto et al.
Department of Veterinary Medical Sciences, University of Bologna, Ozzano dell’Emilia (Bologna), Italy
Objectives: Bovine spastic paresis (BSP) is a juvenile-on- set neuromuscular disorder that affects males and females occurring in various breeds of cattle. Clinically BSP is charac- terized by overextension of
🎤 Oral
Genetics and Breeding
2022
GB-11
Genetic Parameters Of Sole Lesion Recovery In Holstein Cows
Matthew Barden et al.
University of Liverpool, Neston, United Kingdom
Objectives: Lameness in dairy cattle is primarily caused by foot lesions (Murray et al., 1996). Two of the most prevalent foot lesions are sole hemorrhage and sole ulcers (Cramer et al., 2008). It is thought th
🎤 Oral
Genetics and Breeding
2022
GB-12
Novel Insights Into The Genetics Of Schistosoma Reflexum In Holstein Cattle
Joana Jacinto et al.
Cord Drögemüller2. Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Italy
Objectives: Schistosoma reflexum (SR) is a lethal con- genital syndrome in cattle characterized by U-shaped dorsal retroflexion of the spine and eventration of the viscera. A re- cessive mode of inheritance has