Results 11 to 20 of about 925 (178)

Effect of the biological castration vaccine (Improvac®) on sex hormones and reproductive organs of pigs in Vietnam

open access: yesVeterinary Integrative Sciences, 2023
The Improvac® vaccine has been shown to improve growth performance, meat quality, and sexual behavior in swine herds in several countries. This study initially investigated the ability of this vaccine to control sex hormones and the development ...
Danh Cong Lai   +5 more
doaj   +2 more sources

Effects of an anti-gonadoliberin releasing hormone vaccine on testicular, epididymal and spermatogenic development in the horse. [PDF]

open access: yesReprod Domest Anim, 2022
Abstract The effects of the GnRH vaccine Improvac® on testicular and epididymal morphometrics, histology and spermatogenesis were measured in 19 young (15–20 months) colts randomly assigned to one control (saline, castration at 57 days, n = 6) or either of two GnRH vaccine‐treatment groups, T‐57 (castration at 57 days, n = 7) or T‐100 (castration at ...
Botha AE   +7 more
europepmc   +2 more sources

Advances in the ultrasound diagnosis in equine reproductive medicine: New approaches. [PDF]

open access: yesReprod Domest Anim, 2022
Abstract Ultrasound technology has led to new lines of research in equine reproduction, and it has helped to greatly improve clinical diagnosis and reproductive outcomes in equine practice. This review aims to discuss the potential clinical uses and new approaches of ultrasonography in equine reproduction.
Ortega-Ferrusola C   +6 more
europepmc   +2 more sources

Influences of Immunocastration on Endocrine Parameters, Growth Performance and Carcass Quality, as Well as on Boar Taint and Penile Injuries [PDF]

open access: yesAnimals, 2020
Castration of male pigs without anesthesia is a significant welfare issue. Improvac®, a GnRH vaccine induces an endogenous immune response leading to a decrease in testicular steroids.
Susanne Zoels   +8 more
doaj   +2 more sources

Effects of Dietary Bromide, Magnesium and Tryptophan and Immunocastration on Growth Performance and Behaviour of Entire Male Pigs [PDF]

open access: yesAnimals
The growth of boars may be inhibited because of aggressive and/or sexual activity. Dietary Br, Mg and tryptophan (Trp) as well as immunocastration may reduce these behaviours. In Experiment 1, 200 boars and 40 barrows were allocated to six groups of four
Frank R. Dunshea   +2 more
doaj   +2 more sources

Improvac induces immunocastration by affecting testosterone levels and disrupting spermatogenesis in male broiler chickens

open access: yesPoultry Science, 2019
Immunocastration (vaccination against Gonadotropin-releasing hormone (GnRH)) has been regarded as a friendly substitution to physical castration in animals. To date, a few studies have reported the use of Improvac for immunocastration in boar and one study in broiler chickens; however, there is an apparent dearth of scientific evidence regarding the ...
Izhar Hyder Qazi
exaly   +3 more sources

Impact of Housing Condition on Welfare and Behavior of Immunocastrated Fattening Pigs (Sus scrofa domestica) [PDF]

open access: yesAnimals, 2021
The aim of this study was to investigate whether the well-known positive effects of immunocastration on the behavior and welfare of pigs persist under varying environments.
Linda Steybe   +3 more
doaj   +2 more sources

mRNA Expression of CYP2E1, CYP2A19, CYP1A2, HSD3B, SULT1A1 and SULT2A1 genes in surgically castrated, immunologically castrated, entire male and female pigs and correlation with androstenone, skatole, indole and Improvac-specific antibody levels [PDF]

open access: yesCzech Journal of Animal Science, 2019
This study aimed to obtain a comprehensive look at the influence of castration on mRNA expression of the genes CYP2E1, CYP1A2, CYP2A19, HSD3B, SULT2A1 and SULT1A1 and their correlation with boar taint compounds (androstenone, skatole and indole) and ...
Anna Kubešová   +6 more
doaj   +2 more sources

Mycoplasma hyopneumoniae vaccination at or shortly before weaning under field conditions: a randomised efficacy trial [PDF]

open access: yesVeterinary Record, Volume 181, Issue 1, Page 19-19, July 2017., 2017
This study assessed the efficacy of two different Mycoplasma hyopneumoniae vaccination programmes in relation to the time of weaning. Eight hundred and twenty‐eight piglets were randomly divided into three groups: group V1 was vaccinated three days before weaning, group V2 at weaning (21 days of age) and group NV was left non‐vaccinated.
I. Arsenakis   +5 more
wiley   +3 more sources

GnRH Vaccine Could Suppress Serum Testosterone in Stallion Mules [PDF]

open access: yesAnimals
Stallion mules have been used as working equids in several countries. Aggressiveness under the influence of testosterone results in the necessity for surgical castration before work training.
Siriporn Khumsap   +3 more
doaj   +2 more sources

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