MANIPULATION OF THE FATTY-ACID COMPOSITION OF MILK BY FEEDING PROTECTED CANOLA SEEDS

被引:77
作者
ASHES, JR
WELCH, PS
GULATI, SK
SCOTT, TW
BROWN, GH
BLAKELEY, S
机构
[1] CSIRO,BIOMETR UNIT,BLACKTOWN,NSW 2148,AUSTRALIA
[2] AUSTRALIAN AGR CONSULTANTS,SYDNEY,NSW 2000,AUSTRALIA
关键词
PROTECTED CANOLA; MILK FAT; FATTY ACIDS;
D O I
10.3168/jds.S0022-0302(92)77853-9
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The feeding to dairy cows of canola seed protected from ruminal metabolism by emulsification and encapsulation in a matrix of aldehyde-treated protein resulted in a 10% increase in milk fat and no change in milk yield or protein content. Feeding the protected canola supplement significantly reduced the proportions of saturated fatty acids C16:0, C14:0, and C12:0 in milk fat; there were corresponding increases in proportions of C18:0, C18:1, C18:2, and C18:3. Yield of C18 monounsaturated and polyunsaturated fatty acids increased by 54%, which is equivalent to 143 g/d. Canola seed, enriched in C18:1, can be included in the diet and can result in significant changes in the proportions of saturated and unsaturated fatty acids in milk fat.
引用
收藏
页码:1090 / 1096
页数:7
相关论文
共 25 条
[1]  
ASHES JR, 1979, J AM OIL CHEM SOC, V56, P552
[2]  
ASHES JR, 1983, P NUTR SOC AUST, V8, P129
[3]   EFFECTS OF FEEDING PROTEC AND ALPHA-TOCOPHEROL ON FATTY-ACID COMPOSITION AND OXIDATIVE STABILITY OF COWS MILK [J].
ATWAL, AS ;
HIDIROGLOU, M ;
KRAMER, JKG .
JOURNAL OF DAIRY SCIENCE, 1991, 74 (01) :140-145
[4]   EFFECT OF DIETARY UNSATURATED FATTY-ACIDS IN VARIOUS FORMS ON THE DENOVO SYNTHESIS OF FATTY-ACIDS IN THE BOVINE MAMMARY-GLAND [J].
BANKS, W ;
CLAPPERTON, JL ;
GIRDLER, AK .
JOURNAL OF DAIRY RESEARCH, 1990, 57 (02) :179-185
[5]   DESATURASE ACTIVITY OF GOAT AND SOW MAMMARY TISSUE [J].
BICKERSTAFFE, R ;
ANNISON, EF .
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY, 1970, 35 (03) :653-+
[6]   WHOLE ROLLED SUNFLOWER SEEDS WITH OR WITHOUT ADDITIONAL LIMESTONE IN LACTATING DAIRY-CATTLE RATIONS [J].
FINN, AM ;
CLARK, AK ;
DRACKLEY, JK ;
SCHINGOETHE, DJ ;
SAHLU, T .
JOURNAL OF DAIRY SCIENCE, 1985, 68 (04) :903-913
[7]   EFFECT OF FEEDING PROTECTED SAFFLOWER OIL ON YIELD, COMPOSITION, FLAVOR, AND OXIDATIVE STABILITY OF MILK [J].
GOERING, HK ;
GORDON, CH ;
WRENN, TR ;
BITMAN, J ;
KING, RL ;
DOUGLAS, FW .
JOURNAL OF DAIRY SCIENCE, 1976, 59 (03) :416-425
[9]   ACCEPTABILITY OF FAT SUPPLEMENTS IN FOUR DAIRY HERDS [J].
GRUMMER, RR ;
HATFIELD, ML ;
DENTINE, MR .
JOURNAL OF DAIRY SCIENCE, 1990, 73 (03) :852-857
[10]  
GRUNDY SM, 1990, J LIPID RES, V31, P1149