正大集团介绍.ppt

绝对不一样 * * The top of the bucket is the cow’s genetic potential for milking. If we feed her an unbalanced ration we will not achieve her genetic potential. Imagine this bucket to be the nutritional profile of feeding just forages. We need to create a supplement to fill in the gaps. Before we can fill in the gaps we need to know what the nutrient profile of the forage is - FORAGE ANALYSIS Spartan Ration Balancer has the capability of linear programming - coordinate the requirements of the animal, the nutrient profile of the ingredients and the price of individual ingredients. In order to know which staves are limiting or exceeding the requirement, we need to know the nutrient profile of each feed being used in the ration. This is why FEED ANALYSIS is critical * Forages make up a significant portion of the diets of ruminant animals. 40 - 50% of the diet of dairy cattle consists of forages. These feeds are responsible for supplying much of the protein and energy requirements for maintenance and growth, lactation and reproduction. The need to produce quality forage becomes evident. General feeding recommendations: at least 1/3 of the total diet DM should be long hay or its equivalent as medium to coarse chopped silage or forage = 1.5% of live weight * Think of plant fibre as the “weights” that a cow uses to keep her stomach in shape * Forage quality can greatly influence how animals produce their products. A portion of the performance variation can be explained by the fact that as forage quality decreases, feed intake will also decrease. In addition, forage digestibility will be reduced. Non-ruminant animals such as horses are able to eat larger quantities of poor quality forages and pass them through the digestive tract faster to compensate for the lower quality. Ruminants, however can not alter intake to compensate for poorer quality forage. The poorer the forage quality, the longer it remains in the ruminant digestive tract, which in turn, decreases