一个育肥猪场免疫去势和未去势公猪的阴茎损伤
Penile Injuries in Immunocastrated and Entire Male Pigs of One Fattening Farm.
作者信息
Reiter Simon, Zöls Susanne, Ritzmann Mathias, Stefanski Volker, Weiler Ulrike
机构信息
Clinic for Swine, Ludwig-Maximilians-University Munich, Sonnenstrasse 16, 85764 Oberschleissheim, Germany.
Institute of Animal Science, Hohenheim University, Schloss Hohenheim 1, 70599 Stuttgart, Germany.
出版信息
Animals (Basel). 2017 Sep 13;7(9):71. doi: 10.3390/ani7090071.
Penile injuries in boars have been discussed as a relevant welfare problem in pork production with entire males (EM). The incidence of penile injuries with immunocastrated boars has not been described so far. Thus, it was the aim of this study to systematically compare frequency and severity of penile injuries in EM and IC. Incidence and size of penile injuries (wounds, scars, hematomas) were evaluated in 192 IC and 215 EM from one farm after slaughter (120 kg live weight; four batches (BA) in at least weekly intervals over five weeks). 75.8% EM and 48.4% IC showed injuries at the pars libra of the penis. Scars were observed in 71.2% EM and 44.8% IC. Scars/animal were significantly influenced by treatment (IC vs. EM), B and treatment x B and increased with age in EM (BA1: 2.61 ± 3.05; BA4: 3.59 ± 3.47), but not in IC (BA1: 2.00 ± 3.02; BA4: 1.22 ± 1.91). Wounds were obvious in 17.2% EM and 8.3% IC. Wounds/animal were only influenced significantly by treatment and were lower in IC than in EM. Thus, it is concluded that immunocastration reduces the frequency and severity of penile injuries in IC when compared to EM of same age and weight.
公猪的阴茎损伤已被视为在使用完整雄性（EM）的猪肉生产中一个相关的福利问题。迄今为止，尚未描述免疫去势公猪阴茎损伤的发生率。因此，本研究的目的是系统地比较EM和IC中阴茎损伤的频率和严重程度。在屠宰后（活重120千克；分四批（BA），在五周内至少每周一批），对来自一个农场的192头IC和215头EM的阴茎损伤（伤口、疤痕、血肿）的发生率和大小进行了评估。75.8%的EM和48.4%的IC在阴茎的自由部出现损伤。在71.2%的EM和44.8%的IC中观察到疤痕。每头动物的疤痕受到处理（IC与EM）、批次（B）以及处理×批次的显著影响，并且在EM中随年龄增加（BA1：2.6±3.05；BA4：3.59±3.47），但在IC中并非如此（BA1：2.00±3.02；BA4：1.22±1.91）。17.2%的EM和8.3%的IC出现明显伤口。每头动物的伤口仅受到处理的显著影响，且IC中的伤口比EM中的少。因此，可以得出结论，与相同年龄和体重的EM相比，免疫去势降低了IC中阴茎损伤的频率和严重程度。
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