Chair group Business Economics, Wageningen University, Hollandseweg 1, 6706 KN Wageningen, The Netherlands.
Vet Rec. 2012 Jul 7;171(1):17. doi: 10.1136/vr.100183. Epub 2012 May 29.
Most dairy farmers are not certain whether immediate insemination or delaying the insemination is the best economic decision for a cow in oestrus. A model was developed for determining, based on herd and cow characteristics, the economic consequences of immediate or delayed insemination. The model was based on literature information and expert knowledge. In the model, the oestrus detection and conception rates were made cow-specific. The utility of the model was illustrated using a standard cow and data on 90 cows in oestrus (provided by 10 Dutch dairy farmers). The model suggested that for the majority of cows, the best decision is to immediately inseminate the cow in oestrus, but for most heifers with a flatter lactation curve the best decision was to delay the insemination. The economic effect of delaying the insemination was however small, on average -€18 per cow per year. Immediate insemination of an individual cow did result in relatively low economic benefits, but for a whole herd they can be substantial. This model can be used by farmers to help making the best economic decision for a cow in oestrus.
大多数奶农不确定发情奶牛进行即时配种还是延迟配种更符合经济效益。本研究建立了一个模型，根据牛群和奶牛特征，确定即时或延迟配种的经济后果。该模型基于文献信息和专家知识。在模型中，发情检测和受孕率是根据奶牛个体数据进行预测的。通过使用标准奶牛和 10 位荷兰奶农的 90 头发情奶牛的数据，对模型进行了验证。结果表明，对于大多数奶牛来说，最佳决策是立即对发情奶牛进行配种，但对于大多数泌乳曲线较平坦的小母牛来说，最佳决策是延迟配种。然而，延迟配种的经济效益很小，平均每头奶牛每年约为 18 欧元。对个别奶牛进行即时配种确实会带来相对较低的经济效益，但对于整个牛群来说，经济效益可能会很可观。该模型可以帮助奶农为发情奶牛做出最佳的经济决策。
