Evaluating Nutritional Limitations for Efficient Lamb Production

目前羊肉产品的需求量远远超过全国的供应量。改善国内供应的一个主要挑战是改进具有成本效益的喂养战略。该项目旨在评估可用于提高育肥羔羊生产力、羔羊屠体特性和成本效益的实用饲养策略，同时考虑对环境的潜在影响。为了达到这一目的，羔羊将饲喂含有低但充足的粗蛋白的肥育日粮，低而充足的粗蛋白日粮添加脂肪，高粗蛋白日粮不添加脂肪，高粗蛋白日粮不添加脂肪，使用蒸馏器干谷物和可溶性物质来增加日粮粗蛋白，或者高粗蛋白日粮添加脂肪，使用热损坏的整个油菜籽来增加脂肪和粗蛋白。应该注意的是，这些喂养策略代表了实用策略，并利用了不进入人类食物链的副产品饲料。还预计添加脂肪的日粮将减少甲烷排放，低粗蛋白日粮将提高羔羊对氮素的利用效率。这项研究将提供重要的信息，帮助我们提高对肥育羔羊生产的了解，并通过帮助稳定供应和成本为加拿大人带来好处。

The current demand for lamb meat products far exceeds the national supply. A major challenge towardsimproving domestic supply is the refinement of cost-effective feeding strategies. This project aims to evaluatepractical feeding strategies that can be used to improve finishing lamb productivity, lamb carcasscharacteristics, and cost-effectiveness while considering potential impacts on the environment. To address theaim, lambs will be fed finishing diets containing a low but adequate crude protein, low but adequate crudeprotein diet with added lipid, high crude protein diet without fat, and high crude protein without added lipidusing distillers dry grains with solubles to increase dietary crude protein, or a high crude protein diet withadded lipid using heat damaged whole canola seed to increase both lipid and crude protein. It should be notedthat these feeding strategies represent practical strategies and utilize byproduct feeds that do not enter thehuman food chain. It is also anticipated that the diets with added lipid would reduce methane emissions and thelow crude protein diets would improve the efficiency of nitrogen use by the lambs. This study will provideimportant information to help improve our knowledge on finishing lamb production and provide a benefit toCanadians by helping to stabilize supply and cost.