不同水平玉米油及其他油脂对北京白鸭生长性能的影响

The effect of graded levels of corn oil and different fats on the performance of white pekin ducklings.

作者信息

Storey M L, Maurer A J

出版信息

Poult Sci. 1986 Aug;65(8):1571-80. doi: 10.3382/ps.0651571.

Abstract

One-hundred-eighty male and female ducklings (90 of each sex) were fed isocaloric and isonitrogenous diets formulated to contain 0, 2, 4, 6, 8, or 10% corn oil in the starter (0 to 14 days), grower (14 to 35 days), and finisher (35 to 49 days) periods. Body weights of the ducklings were not different among treatments; however, feed consumption decreased significantly between 0 and 49 days of age (10.22, 9.78, 9.18, 9.00, 8.54, and 8.96 kg) as the level of dietary corn oil increased (0, 2, 4, 6, 8, and 10%, respectively). Regression analysis indicated a linear decrease in feed/gain (F/G) as corn oil increased in the diet. F/G (0 to 49 days) = 3.48 - .06 (% corn oil); r2 = .92. In a second experiment, isocaloric and isonitrogenous diets were formulated to contain 0% added fat (NF) or 4% corn oil (CO), peanut oil (PO), vegetable shortening (VS), lard (LD), or tallow (TL). The body weights of the ducklings were the same across treatments throughout the 49-day experiment. Ducklings fed 4% TL consumed significantly (P less than .05) less feed than those ducklings fed NF, PO, VS, or LD. Feed efficiency was not statistically different among the ducklings fed the six different diets.

摘要

180只雌雄鸭雏（每种性别90只）在雏鸭期（0至14天）、生长期（14至35天）和育肥期（35至49天）分别饲喂等热量、等氮量且玉米油含量分别为0%、2%、4%、6%、8%或10%的日粮。各处理组鸭雏的体重无差异；然而，随着日粮中玉米油水平的升高（分别为0%、2%、4%、6%、8%和10%），0至49日龄期间的采食量显著下降（分别为10.22、9.78、9.18、9.00、8.54和8.96千克）。回归分析表明，日粮中玉米油增加时，料重比（F/G）呈线性下降。F/G（0至49天）= 3.48 - 0.06（玉米油百分比）；r2 = 0.92。在第二项试验中，配制了等热量、等氮量且添加脂肪为0%（无脂，NF）或4%玉米油（CO）、花生油（PO）、植物起酥油（VS）、猪油（LD）或牛油（TL）的日粮。在整个49天的试验中，各处理组鸭雏的体重相同。饲喂4%牛油的鸭雏采食量显著低于（P < 0.05）饲喂无脂、花生油、植物起酥油或猪油的鸭雏。饲喂六种不同日粮的鸭雏之间饲料效率无统计学差异。