Characterization and improvement of novel oilseed meal with supplemental enzymes in broiler chickens

肉鸡添加酶的新型油籽粕的特性和改良

• 批准号: 468198-2014
• 负责人: Zijlstra, Ruurd
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=562678
• 关键词: Characterization; improvement; novel; oilseed; meal

Prices of the grains corn and wheat, and soybean meal traditionally the most widely used energy and amino acid sources, respectively, in poultry diets in Canada, have been soaring. Thus, a need exists for cheap alternatives to manage feed cost. Camelina meal, a co-product of vegetable oil extraction from camelina (oilseed crop of Brassica family) may serve as partial alternative to the grains and soybean meal in poultry diets in Canada. However, camelina meal has a high content of fibre. Dietary fibre is poorly digested by poultry and may decrease nutrient utilization. There is limited information on the nutritive value of the camelina meal for poultry. Also, there is lack of information on the effect of supplementing fiber-degrading enzymes to diets based on the camelina meal on nutrient utilization by poultry. Thus, the objective of this project is to characterize the nutritive value of the camelina meal for broilers, and determine the effect adding fiber-degrading enzymes in diets based on camelina meal on nutrient utilization by broilers. The methodology will include determining: (1) the standardized ileal digestibility of amino acids and metabolizable energy value of camelina meal for broilers; and (2) the effect of adding fiber-degrading enzymes to camelina meal-based diets for broilers on the nutrient digestibility and metabolizable energy value. Data from this research will be used to optimize utilization of camelina meal in formulating poultry feeds. The subsequent increase in utilization of camelina meal as feedstuffs for poultry in Canada will reduce cost to produce poultry meat and eggs. The results from this project will also benefit the Canadian Biosystems Inc. by providing solid evidence about the efficacy of their fiber-degrading enzymes with regard to improving the nutritional value of camelina meal.

谷物玉米和小麦以及豆粕的价格一直在飙升，这三种谷物分别是加拿大家禽饮食中传统上最广泛使用的能源和氨基酸来源。因此，需要廉价的替代品来管理饲料成本。亚麻荠粕是从亚麻荠（芸苔属的油料作物）中提取植物油的副产品，可作为加拿大家禽饲料中谷物和豆粕的部分替代品。然而，亚麻荠粉具有高含量的纤维。家禽对膳食纤维消化不良，可能会降低营养素的利用率。有关亚麻荠粉对家禽的营养价值的信息有限。此外，缺乏关于在以亚麻荠粉为基础的饮食中补充纤维降解酶对家禽营养利用的影响的信息。因此，本项目的目的是表征亚麻荠饼粕对肉鸡的营养价值，并确定在基于亚麻荠饼粕的日粮中添加纤维降解酶对肉鸡营养利用的影响。方法学包括测定：（1）肉鸡对亚麻荠粕氨基酸的标准化回肠消化率和代谢能值;（2）在以亚麻荠粕为基础的肉鸡日粮中添加纤维降解酶对营养物质消化率和代谢能值的影响。本研究的数据将用于优化亚麻荠粕在家禽饲料配方中的利用。在加拿大，亚麻荠粉作为家禽饲料的利用率随之增加，这将降低生产禽肉和禽蛋的成本。该项目的成果也将使加拿大生物系统公司受益。通过提供关于它们的纤维降解酶在改善亚麻荠粉的营养价值方面的功效的可靠证据。