Effect of Age at First Calving on the Reproduction Parameters, Metabolic Profile, and Fatty Acid Composition of Polish Holstein Friesian (PHF) and Crossbreds PHF × Swedish Red (SRB) Cattle.

IF 3.4 3区生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Metabolites Pub Date : 2024-10-27 DOI:10.3390/metabo14110583

Paweł Solarczyk, Marcin Gołębiewski, Jan Slósarz, Antonio Natalello, Martino Musati, Ruggero Menci, Tomasz Sakowski, Karol Tucki, Kamila Puppel

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引用次数: 0

Abstract

Background: The high dairy production of Polish Holstein Friesian (PHF) cows determines high energy requirements in the early stages of lactation. Unfortunately, it is very often difficult to meet this demand through feedstuffs; therefore, homeostasis may be disturbed and metabolic diseases may occur, causing a majority of cows' health problems. Breeders are, therefore, looking for alternatives to the PHF breed using crossbreeding.

Methods: This experiment involved 30 PHF cows and 30 PHF × Swedish Red (SRB) crossbred hybrid cows, divided into two age groups, <2 years and >2 years, at first calving. Milk and blood samples were collected at 35 ± 5 days postpartum for analysis. Data on reproductive performance were also analyzed.

Results: This study revealed lower milk production for the crossbreds hybrid (27.44 kg compared to 32.08 kg), with a higher basic composition content than PHF cows (fat: 3.97% compared to 3.83%, protein: 3.53% compared to 3.27%). The heifers of the crossbreds hybrid reached sexual maturity earlier but did not affect the lower age at first calving. Dividing the cows into age categories provided a more detailed perspective of the impact of genotypic differences on reproductive and metabolic profiles in PHF and PHF × SRB cattle. The findings highlight the importance of considering age-specific effects when assessing the performance and health of dairy cattle with diverse genotypes.

Conclusions: The choice between PHF and PHF × SRB should depend on the specific goals and priorities of the cattle farming operation. Factors such as overall milk yield requirements, market demands, reproductive management strategies, and health considerations should be carefully evaluated to determine the most suitable breed for a given farming context.

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初产年龄对波兰荷斯坦弗里斯兰牛（PHF）和 PHF × 瑞典红牛（SRB）杂交牛繁殖参数、代谢谱和脂肪酸组成的影响。

背景：波兰荷斯坦弗里斯兰（PHF）奶牛的高产决定了其在泌乳初期对能量的高需求。不幸的是，通常很难通过饲料满足这种需求；因此，平衡可能会受到干扰，代谢疾病可能会发生，从而导致大多数奶牛出现健康问题。因此，育种人员正在通过杂交寻找 PHF 品种的替代品：本实验涉及 30 头 PHF 奶牛和 30 头 PHF × 瑞典红（SRB）杂交种奶牛，首次产犊时分为两个年龄组，每组 2 岁。在产后 35 ± 5 天采集牛奶和血液样本进行分析。同时还分析了繁殖性能数据：研究结果表明，杂交母牛的产奶量较低（27.44 千克，32.08 千克），基本成分含量高于 PHF 母牛（脂肪：3.97%，3.83%；蛋白质：3.53%，3.27%）。杂交母牛性成熟较早，但并不影响初产年龄较低。将母牛划分为不同的年龄段，可以更详细地了解基因型差异对 PHF 和 PHF × SRB 牛的繁殖和代谢特征的影响。研究结果突出表明，在评估不同基因型奶牛的性能和健康状况时，考虑特定年龄的影响非常重要：结论：PHF 和 PHF × SRB 之间的选择应取决于养牛场的具体目标和优先事项。应仔细评估总体产奶量要求、市场需求、繁殖管理策略和健康考虑等因素，以确定最适合特定养殖环境的品种。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Metabolites Biochemistry, Genetics and Molecular Biology-Molecular Biology

CiteScore

5.70

自引率

7.30%

发文量

1070

审稿时长

17.17 days

期刊介绍： Metabolites (ISSN 2218-1989) is an international, peer-reviewed open access journal of metabolism and metabolomics. Metabolites publishes original research articles and review articles in all molecular aspects of metabolism relevant to the fields of metabolomics, metabolic biochemistry, computational and systems biology, biotechnology and medicine, with a particular focus on the biological roles of metabolites and small molecule biomarkers. Metabolites encourages scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on article length. Sufficient experimental details must be provided to enable the results to be accurately reproduced. Electronic material representing additional figures, materials and methods explanation, or supporting results and evidence can be submitted with the main manuscript as supplementary material.