Veterinary 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
Influences of Immunocastration on Endocrine Parameters, Growth Performance and Carcass Quality, as Well as on Boar Taint and Penile Injuries [PDF]
Animals, 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]
AnimalsThe 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
Poultry 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, Zhang Ming
exaly +3 more sources
Impact of Housing Condition on Welfare and Behavior of Immunocastrated Fattening Pigs (Sus scrofa domestica) [PDF]
Animals, 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]
Czech 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
GnRH Vaccine Could Suppress Serum Testosterone in Stallion Mules [PDF]
AnimalsStallion 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
Animal Reproduction Science, 2011 Gonadotropin-releasing hormone (GnRH) vaccine (Improvac(®)) is effective at diminishing boar taint by interfering with testis function. Early pre-pubertal vaccination at 10 and 14 weeks-of-age could be desirable if sufficient and sustained effects could be achieved.
Heriberto Rodríguez-Martínez +2 more
exaly +5 more sources
Effect of vaccination against gonadotrophin-releasing hormone, using Improvac®, on growth performance, body composition, behaviour and acute phase proteins [PDF]
Livestock Science, 2010 The objective of this study was to evaluate the effect of vaccination against GnRH on performance traits, pig behaviour and acute phase proteins. A total of 120 pigs (36 non-castrated males, NCM; 36 males to be vaccinated, IM; 24 castratedmales, CM; and 24 females, FE)were controlled in groups of 12 in pens with feeding stations allowing the recording ...
Emma Fàbrega-Romans +2 more
exaly +3 more sources
Two complementary methods to control gonadotropin‐releasing hormone vaccination (Improvac®) misuse in horseracing: Enzyme‐linked immunosorbent assay test in plasma and steroidomics in urine [PDF]
Drug Testing and Analysis, 2017 Since the availability on the European market of the vaccine Improvac® dedicated to male pig immunological castration, the risk of misuse of this product in horses is now considered as a threat for the horseracing industry. Immunological castration is not allowed by the racing codes (immune system, Article 6).
Benoit Loup +2 more
exaly +3 more sources