Conservation status of Creole sheep flocks in Brazil

G. Moreira
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Abstract

The Creole sheep (Ovis aries) is a breed that has been reared for centuries in southern Brazil, although it was officially recognized by the Brazilian authorities only in 2001. There are no updated local records on its current abundance, which is essential to establish conservation policies for the breed if required. Based on a survey conducted among farmers and considering all genealogical control records for Creole sheep provided by the Brazilian Sheep Breed Association (ARCO), we herein address the status of the breed in terms of the number and size of flocks, updating its geographical distribution. There are approximately 112 Creole flocks, 8,844 reproductive ewes (flock size from 3 to 850 individuals; geometric average 54.77 individuals per flock). The flocks are primarily distributed in the southernmost states of Rio Grande do and Santa Catarina, with sporadic occurrence in northern and central states (Rio de Janeiro, and ). The majority of the flocks (n = 105 flocks, with 8,298 ewes) are privately held, being reared primarily for meat and carpet wool production, similarly to other commercial breeds. A few flocks (5.61%) have remained with the same families, whose ascendants started rearing Creole sheep as an undefined breed over a century ago. However, over 65% of the current breeders have started rearing these sheep in the last two decades, following the official recognition of the breed and the foundation of the Brazilian Creole Sheep Breeder Association, which is in charge of breed promotion. Moreover, 73 flocks with genealogical control by ARCO have been established since the official recognition of the breed (total average = 427.80 specimens recorded per year). Recently, however, this number has decreased, with only 19 Creole breeders registering sheep in the last five years. Notwithstanding, the number of registered males remained stable (average of 78.2 rams/year, during 2016–2020). Taken together, the total number of the existing Creole ewes and males is well above the threshold adopted by the Food and Agriculture Organization of the UN (FAO) to qualify a given sheep breed as at risk (< 80% pure-breeding ewes).
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巴西克里奥尔羊群的保护现状
克里奥尔羊(Ovis aries)是一个在巴西南部饲养了几个世纪的品种,尽管它直到2001年才被巴西当局正式承认。没有更新的当地记录,其目前的丰度,这是必要的,以建立保护政策,如果需要的品种。在对农民进行调查的基础上,考虑到巴西绵羊品种协会(ARCO)提供的所有克里奥尔羊的家谱控制记录,我们在此讨论了该品种在羊群数量和规模方面的现状,并更新了其地理分布。大约有112个克里奥尔羊群,8,844只繁殖母羊(羊群规模从3到850只;几何平均每群54.77只)。禽群主要分布在格兰德河州和圣卡塔琳娜州的最南端,在北部和中部州(里约热内卢和路易斯安那州)有零星发生。大多数羊群(n = 105群,8,298只母羊)是私人饲养的,与其他商业品种类似,主要用于肉类和地毯羊毛生产。少数羊群(5.61%)仍留在同一个家庭中,这些家庭的祖先在一个多世纪前开始饲养克里奥尔羊,这是一个未定义的品种。然而,随着官方对该品种的认可和负责该品种推广的巴西克里奥尔羊育种协会的成立,在过去的二十年里,超过65%的育种者开始饲养这些羊。此外,自正式承认该品种以来,已建立了73个经ARCO家谱控制的禽群(平均每年记录427.80个标本)。然而,最近这个数字有所下降,在过去的五年中,只有19名克里奥尔育种者注册了绵羊。尽管如此,注册公羊的数量保持稳定(2016-2020年平均78.2只公羊/年)。总的来说,现有克里奥尔母羊和公羊的总数远远高于联合国粮食及农业组织(FAO)为确定某一特定绵羊品种(纯种母羊< 80%)而采用的临界值。
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