Immunocontraception of male and female giraffes using the GnRH vaccine Improvac®. [PDF]
Zoo Biol, 2022 I Protocols for contraception using the GnRH vaccine Improvac® were developed. A clear reduction of fecal hormone metabolites in female giraffes was achieved with three, and in males with four or five injections at 4‐week intervals. Effective booster injections were administered at 2‐month intervals in the first, and at three to 4‐month intervals in ...
Schwarzenberger F +13 more
europepmc +6 more sources
Improvac immunocastration affects the development of thigh muscles but not pectoral muscles in male chickens [PDF]
Poultry Science, 2020 Improvac has been tentatively used to immune-castrate roosters. The aim of this study was to investigate whether Improvac affected skeletal muscle development in chickens.
Y.T. Zeng +10 more
doaj +6 more sources
Early vaccination with Improvac®: effects on performance and behaviour of male pigs
Animal, 2012 The aim of this study was to investigate the effect of giving a two-dose regimen of gonadotropin-releasing hormone vaccine, Improvac® (Pfizer Ltd), earlier than currently recommended, on performance and behaviour of growing/finishing pigs.
K. Andersson +3 more
doaj +5 more sources
Animal, 2012 For centuries, entire male pigs have been castrated to reduce the risk of boar taint. However, physical castration of pig is increasingly being questioned with regard to animal welfare considerations. Immunization against gonadotrophin releasing hormone (
N. Quiniou +4 more
doaj +5 more sources
Growth performance, carcass characteristics and meat quality of group-penned surgically castrated, immunocastrated (Improvac®) and entire male pigs and individually penned entire male pigs [PDF]
Animal, 2009 The objective of the study was to compare growth performance, carcass characteristics, meat quality and fatty acid composition of the adipose tissue of group-penned barrows, immunocastrated boars and entire males.
C. Pauly +4 more
doaj +5 more sources
Long-Term Immunocastration Protocols Successfully Reduce Testicles’ Size in Bísaro Pigs [PDF]
Animals, 2021 This study aimed to find a suitable immunocastration protocol for male Bísaro pigs (BP) due to the breed and production system particularities. Twenty-five male BP were treated with Improvac® according to three protocols: using two (GrpE2 and L2) or ...
Gustavo Paixão +5 more
doaj +2 more sources
Immunization against Gonadotropin-Releasing Hormone in Female Beef Calves to Avoid Pregnancy at Time of Slaughter [PDF]
Animals, 2021 Precocious puberty in beef heifers can result in unwanted pregnancies due to accidental breeding by farm bulls. Inbreeding, premature calving followed by dystocia and a high stillbirth rate or slaughtering of pregnant heifers are the consequences of this
Julia Schütz +5 more
doaj +2 more sources
Does Immunocastration Affect Behaviour and Body Lesions in Heavy Pigs? [PDF]
Veterinary Sciences, 2022 Immunocastration has been pointed out as an alternative to surgical castration; though, most of the scientific studies were performed in light pig production.
Gaia Pesenti Rossi +13 more
doaj +2 more sources
Effects of Immunocastration and Amino Acid Supplementation on Yearling Fallow Deer (Dama dama) Testes Development [PDF]
Animals, 2023 Forty-four fallow deer bucks (10 months old; 22.9 ± 2.4 kg) were utilized to investigate the effects of immunocastration and amino acid supplementation on testes development. Immunocastrated bucks were administered Improvac® at weeks 1, 8, and 20 of this
Thoniso Chitambala +6 more
doaj +2 more sources
Effect of Immunocastration on Culled Sows—A Preliminary Study on Reproductive Tract, Carcass Traits, and Meat Quality [PDF]
Veterinary Sciences, 2023 The Bísaro pig is a Portuguese autochthonous breed greatly appreciated for its meat quality and is mainly reared outdoors. Immunocastration could be a solution to avoid undesirable pregnancies and boar taint in cull sows.
Sofia Botelho-Fontela +9 more
doaj +2 more sources