We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
蒸汽压片玉米、棕榈脂肪粉对 奶水牛泌乳性能、氮磷排放量的影响.
- Authors
刘 萍; 赵敏霖; 李 清; 张发强; 申晓静; 梅国栋; 赵家华; 毛华明
- Abstract
The experiment was conducted to study the effect of steam-pressed corn flakes and palm fat powder on lactation performance, apparent digestibility of nutrients, nitrogen and phosphorus emission of dairy buffalo. Nine healthy Dehong three-way hybrid milk buffalo with similar parity, lactation days and milk yield were randomly divided into three groups, with three replicates in each group and one milk buffalo in each replicate. Buffalo in control group (group CK) were fed with basal diet, the crushed corn in basal diet was replaced by steam-pressed corn in group A, and the same volume of steam-pressed corn was replaced by 2% palm fat powder in group B on the basis of group A. The experiment lasted for 40 d, including 10 d of pre-trial and 30 d of formal trial. The results showed that the daily milk yield of group B was significantly higher than that of group A (P<0.05), and the daily milk yield of group A was significantly higher than that of group CK (P<0.05). The 4% standard milk content in group B was significantly higher than that in group A (P<0.05). The fat-free dry matter content of group A was significantly lower than that of group CK (P<0.05). The apparent digestibility of crude protein (CP) in group B was significantly lower than that in group A (P<0.05). The fecal nitrogen emissions and total nitrogen emissions in group B were significantly higher than those in group A (P<0.05), and the fecal nitrogen, urinary nitrogen and total nitrogen emissions in group A were significantly lower than those in group CK (P<0.05). There was no significant difference in P intake, P utilization, fecal P, urinary P and total P emissions among all groups (P>0.05). The study indicates that steam-pressed corn can increase milk yield of buffalo, decrease protein and fat-free dry matter content, increase nitrogen utilization. Palm fat powder can significantly increase milk yield and decrease CP digestibility, but has no effect on milk composition and nitrogen and phosphorus utilization.
- Subjects
MILK yield; COMPOSITION of milk; MILKFAT; CORN; ANIMAL feeds; CONTROL groups; LACTATION
- Publication
Feed Research, 2022, Vol 45, Issue 20, p1
- ISSN
1002-2813
- Publication type
Article
- DOI
10.13557/j.cnki.issn1002-2813.2022.20.001