新创建乌克兰鳟鱼品种群马生殖组成形成的选择分析

I. Tkachova
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引用次数: 0

摘要

研究对象是一组新创建的乌克兰小跑品种马组的繁殖母马,注册日期为2023年1月1日(n=194)。91.6%的种马在赛马场上进行了测试,平均活跃度为2.12.9 min。测定了调查阵列的定量和定性指标、家谱结构和家谱组合的有效性。选择最活泼的母马作为迪布里夫斯基种马的种畜(平均活泼度为2.08.2±0.86 min)。在获奖性早熟方面,扎波罗热斯基种马以高概率(p<0.01)优于其他种马场(2岁时平均活力- 2.24.9±1.47 min)。迪布里夫斯基种马的高龄活跃度最高(2.05.4±0.64分钟)。在所有新创建品种组的评估母马中,12%处于2.05分钟及以上的活泼等级,几乎一半(48.8%)处于2.10分钟及以上的活泼等级。大多数母马属于2.05.1 ~ 2.10.0 min(36.8%)、2.10.1 ~ 2.15.0 min(19.7%)、2.00.1 ~ 2.05 min(12.0%)、2.15.1 ~ 2.20 min(9.4%)的活泼类。在Dibrivskiy种马中,10匹马(32.3%)活泼度在2.05分钟及以上,21匹马(67.7%)活泼度在2.10分钟及以上。总的来说,可以这样说,活泼是新形成的小跑品种群体生殖组成的一个相当巩固的特征(Cv=7.28)。根据体测量的评估结果,可以确定Dibrivskiy种马在马肩高和体长方面占优势(p<0.05),因此可以认为该农场的选择策略是将高奖品生产力与外部指标相结合的正确运动。所有种马农场的母马在胸围和手腕上几乎没有差别。迪布里夫斯基种母马的原产地、类型、外观和获奖表现得分最高(p<0.05)。Lymarivskiy种马农场的母马在其测量表现中获得了最高分。通过家谱结构分析,确定了6个种马系和9个生殖母系的来源。在种马和母马方面,快速皇冠系是最发达的(分别为46.7%和34.3%)。在1600米范围内,活跃度最高(活跃度2.10分钟及以上)的系系马为“Hut Moon”(125.5±1.55秒)和“Arnie almahors”(127.6±1.37秒),最早熟的系系马为“Low Hanover”(142.7±3.17秒)、“Worthy Boy”(143.1±1.53秒)、“Hut Moon”(144.5±3.75秒)和“Speedy Crown”(146.1±1.71秒)。分析结果表明,露塔的母系与家谱系的结合效果最好。关键词:马,乌克兰小跑品种群,繁殖母,系谱组合,系,亲本家族,世代,选择性状
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SELECTION ANALYSIS OF THE FORMATION OF THE REPRODUCTIVE COMPOSITION OF THE NEWLY CREATED UKRAINIAN TROUT BREED GROUP OF HORSES
The object of research was an array of breeding mares of the newly created Ukrainian trotting breed group of horses, registered as of 01.01.2023 (n=194). 91.6% of all breeding mares were tested on racetracks with an average liveliness of 2.12.9 min. The quantitative and qualitative indicators of the investigated array, the genealogical structure, and the effectiveness of genealogical combinations were determined. The liveliest mares were selected for breeding stock of the Dibrivskiy stud (average liveliness 2.08.2±0.86 min.). In prize-winning precocity, mares of Zaporizhskiy stud with a high probability (p<0.01) prevail over mares of other stud farms (average sprightliness at 2 years of age – 2.24.9±1.47 min.). The highest record liveliness at an older age in mares of the Dibrivskiy stud (2.05.4±0.64 min.). Of all the evaluated mares of the newly created breed group, 12% are in the liveliness class of 2.05 min. and more lively and almost half (48.8%) to class 2.10 min. and livelier. The majority of mares belong to the liveliness classes of 2.05.1-2.10.0 min. (36.8%), 2.10.1-2.15.0 min. (19.7%), 2.00.1-2.05 min. (12,0 %), 2.15.1-2.20 min (9.4%). In the breeding stock of the Dibrivskiy stud, 10 mares (32.3%) are in the liveliness class of 2.05 min. and more lively, 21 mares (67.7%) are to liveliness class 2.10 min and livelier. In general, it can be stated that liveliness is a fairly consolidated feature (Cv=7.28) of the reproductive composition of the newly formed trotting breed group. According to the results of the assessment of body measurements, it was established that the mares of the Dibrivskiy stud prevail in terms of height at the withers and length of the body (p<0.05), so it can be stated that the selection strategy of this farm is aimed at the right movement of combining high prize productivity with exterior indicators. Mares of all stud farms practically do not differ in chest girth and wrist. the highest score for origin, type, exterior and prize performance was given to mares of the Dibrivskiy Stud (p<0.05). The mares of the Lymarivskiy stud farm received the highest marks for their measured performance. The analysis of the genealogical structure determined the origin of breeding stallions from 6 and reproductive mares from 9 genealogical lines. The Speedy Crown line is the most developed in terms of stallions and mares (46.7 and 34.3%, respectively). The highest record liveliness for the distance of 1600 m (at the level of liveliness class 2.10 min. and livelier) belongs to mares of lines: Hut Moon (125.5±1.55 s) and Arnie Almahurs (127.6±1.37 s). The most precocious mares of the lines: Low Hanover (142.7±3.17 s), Worthy Boy (143.1±1.53 s), Hut Moon (144.5±3.75 s) and Speedy Crown (146.1±1.71 s). The studied array of mares is divided into 25 maternal families. The results of the analysis show that Ruta's mare of line is most effectively combined with genealogical lines. Keywords: horses, Ukrainian trotting breed group, breeding mares, genealogical combinations, lines, parent families, generation, selection traits.
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