Results 11 to 20 of about 440 (158)

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

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, Nam Minh Nguyen, Khanh Tran Doan Vinh, Hue Vo Thi, Phong Du Dai, Duy Tien Do   +5 more
doaj   +4 more sources

Effects of early vaccination with Improvac® on the development and function of reproductive organs of male pigs

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.
Stig Einarsson, Carl Brunius, K Lundström   +2 more
exaly   +6 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, Simon Reiter, Mathias Ritzmann, Christine Weiß, Jasmin Numberger, Aneka Schütz, Peter Lindner, Volker Stefanski, Ulrike Weiler   +8 more
doaj   +4 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 ...
E Fabrega, Antonio Velarde, J Tibau
exaly   +5 more sources

Effect of immunocastration using Improvac on the regulation of adiponectin and leptin in the testes of Landrace boars

Medycyna Weterynaryjna, 2022
Immunological castration of male pigs is an attractive alternative to surgical castration used in many countries to reduce the production of the main androgen, androstenone, and skatole, responsible for meat taint. To understand the effect of gonadoliberin (GnRH) vaccination with Improvac on the functional status of Landrace pig testes at the molecular
Kotula-Balak, Małgorzata, Pawlicki, Piotr, Gałuszka, Anna, Pardyak, Laura, Tuz, Ryszard, Dubniewicz, Klaudia, Skrzypczak-Wiercioch, Anna, Rak, Agnieszka, Dawid, Monika, Tarasiuk, Kazimierz   +9 more
openaire   +3 more sources

Parámetros seminales y hematológicos en gatos domésticos inmunocastrados mediante una vacuna contra GnRH. Resultados preliminares [PDF]

Analecta Veterinaria, 2022
La hormona liberadora de gonadotrofinas (GnRH) constituye un excelente blanco farmacológico para el manejo reproductivo de animales de compañía, de producción y silvestres.
Jorge Jagger Segura Ochoa, Romina Nuñez Favre, María Florencia García, María Cecilia Stornelli, María Carla García Mitacek, Washington Fernando Carrasco Sangache, María Alejandra Stornelli   +6 more
doaj   +2 more sources

Use of anti-gonadotropin-releasing hormone vaccines in African elephants (Loxodonta africana): A review [PDF]

Bothalia: African Biodiversity & Conservation, 2018
Background: Androgen-related aggressive behaviour and musth cause serious problems in captive African elephant bulls and often lead to human and animal injuries, and damage to property.
Hendrik J. Bertschinger, Imke Lueders
doaj   +2 more sources

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

Animals
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, Ian McCauley, Robert J. Smits   +2 more
doaj   +2 more sources

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

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, Ming Zhang
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, Kevin Kress, Sonja Schmucker, Volker Stefanski   +3 more
doaj   +2 more sources