A model to predict age specific calving rate from age at first calving and calving interval in cattle

H Bunning; G E Simm; E Wall; M G G Chagunda; G Banos; P Amer

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A model to predict age specific calving rate from age at first calving and calving interval in cattle

机译：一种模型，以预测第一次加工和牛的犊牛间隔从年龄的年龄特定的Cal.ce率

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Prediction of age specific calving rates, the probability of an animal having a calf within a certain agebracket, is important for modelling the biological and economic performance of herds comprised of different breeds andcrosses. However, these data are often not available whereas age at first calving (AFC) and calving interval (CI) are muchmore commonly reported, particularly in Sub-Saharan Africa. The objective was to use AFC and CI means and standarddeviations as inputs to predict age specific calving rates. Two variations of a deterministic model and one simulation aredescribed and tested using parameters from Ethiopia and Ireland. Predicted calving rates are compared across models andsystems.

机译：预测年龄特异性的产犊率，在某种龄布置内具有小牛群的动物的概率对于建模群体的生物和经济表现来建立不同的品种和交叉来建立。然而，这些数据通常不可用，而第一步的年龄（AFC）和CAL舱间隔（CI）的年龄通常常见地报道，特别是在撒哈拉以南非洲。目的是使用AFC和CI方法和标准日志作为预测年龄特定的产犊率的投入。使用来自埃塞俄比亚和爱尔兰的参数进行了确定性模型和一个模拟的两个变化。在模型和系统中比较了预测的产犊率。

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来源
《Advances in Animal Biosciences》 |2018年第1期|共1页
作者
H Bunning; G E Simm; E Wall; M G G Chagunda; G Banos; P Amer;
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作者单位

Scotland's Rural College Edinburgh UK;

University of Edinburgh UK;

Scotland's Rural College Edinburgh UK;

Scotland's Rural College Edinburgh UK;

Scotland's Rural College Edinburgh UK;

AbacusBio Limited Dunedin New Zealand;

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正文语种 eng
中图分类动物学;
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1. A model to predict age specific calving rate from age at first calving and calving interval in cattle [J] . H Bunning, G E Simm, E Wall, Advances in Animal Biosciences . 2018,第1期

机译：一种模型，以预测第一次加工和牛的犊牛间隔从年龄的年龄特定的Cal.ce率
2. Genetic parameters and genetic trends for age at first calving and calving interval in an Angus-Blanco Orejinegro-Zebu multibreed cattle population in Colombia [J] . Vergara O.D., Elzo M.A., Cercdn-Mucloz M.F. Livestock Science . 2009,第1a3期

机译：哥伦比亚安格斯-布兰科奥雷金内格罗-泽布杂种牛首次产犊和产犊间隔的年龄的遗传参数和遗传趋势
3. Genetic analysis of age at first calving and calving interval in South African Holstein cattle. [J] . Makgahlela ML, Banga CB, Norris D., Asian journal of animal and veterinary advances . 2008,第4期

机译：南非荷斯坦牛第一次产犊和产犊间隔的年龄遗传分析。
4. DISTILLERS DRIED GRAINS SUPPLEMENTATION OF STOCKPILED FORAGE FALL-CALVING COWS OR CALVES OVER WINTER ON PRE- AND POST-WEANING PERFORMANCE OF CALVES IN A PASTURE FINISHING SYSTEM [C] . P. Lasley, J.R. Russell, D.G. Morrical, Conference of the American Forage and Grassland Council and Northeastern Branch of the Crop . 2007

机译：在牧场精加工系统中，蒸馏器在冬季进行储存的牧草摔倒奶牛或牛犊的储存饲料摔倒的奶牛或牛犊
5. The effect of calving season and wintering system on cow and calf performance and economics from conception through finishing and the effect of supplementing dried distillers grains to calves in forage based systems. [D] . Griffin, William A. 2011

机译：从构想到精加工，产犊季节和越冬系统对母牛和犊牛性能和经济的影响，以及以饲草为基础的犊牛补充干酒糟的效果。
6. Genetic Parameters for Age at First Calving and First Calving Interval of Beef Cattle [O] . Michaela Brzáková, Jindřich Čítek, Alena Svitáková, 2020

机译：肉牛的第一次加工的年龄的遗传参数和牛肉牛的第一产犊间隔
7. Genetic relationships between calving date, calving interval, age at first calving and type traits in beef cattle [O] . Gutiérrez, J.P. (Juan), Álvarez, Isabel, Fernández, Itziar, 2011

机译：肉牛产犊日期，产犊间隔，初产年龄和类型性状之间的遗传关系

A model to predict age specific calving rate from age at first calving and calving interval in cattle

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