Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Effect of Feeding Ca-salts of Fatty Acids on Fatty Acids Composition in Milk

N.R. Sarker
Bangladesh Livestock Research Institute, Bangladesh.

K.S. Huque
Bangladesh Livestock Research Institute, Bangladesh.

H. Islam
M.Sc. Student, Bangladesh Agricultural University, Mymensingh.

N.G. Das
Bangladesh Livestock Research Institute, Bangladesh.

Abstract/ Executive Summary:

A study was undertaken to investigate the effects of Calcium Salt of Fatty Acid on the fatty acids composition of milk fed green German grass and concentrate diet. Twenty lactating Pabna cows having similar daily milk yield (3.4±0.842 Kg) were used and divided into four groups with five animals in each group. The study revealed that saturated fatty acids of milk fat were 61.12, 57.83, 54.93, and 54.56% and unsaturated fatty acids of milk fat were 38.36, 42.22, 45.22 and 45.5 38 % in treatment groups T₀ (without Calcium Salt of Fatty Acid), T₁ (2.0 % Calcium Salt of Fatty Acid), T₂ (2.5 % Calcium Salt of Fatty Acid) and T₃ (3.0 % Calcium Salt of Fatty Acid), respectively. The highest unsaturated fatty acid was found in T₃ treatment and the lowest in T₀ treatment. There is no significant difference between T₂ and T₃ treatments in relation to unsaturated fatty acids. The palmetic acid content in milk fat were 25.47, 27.22, 26.22 and 26.22% in T₀, T₁, T₂ and T₃ respectively. The highest palmetic acid found in T₂ treatment and the lowest in T₀ treatment. The stearic acid content in milk fat were 22.98, 15.78, 13.74 and 13.68% in T₀, T₁, T₂ and T₃ respectively. The study showed that there is a significant (p<0.01) difference in the treatments for stearic acid content in milk fat. The linoleic acid content in milk fat were 1.57, 1.64, 1.73 and 1.94 % in treatment groups T₀, T₁, T₂ and T₃ respectively. It may be concluded that the feeding Ca-Salts of Fatty Acids increased unsaturation of milk fat, oleic acid, linoleic acid and linolenic acid and decrease saturation and stearic acid content in milk fat.

Keywords: Calcium salt of fatty acids, Unsaturation, Milk fat, Oleic, Linoleic, Linolenic acids.

Location: Bangladesh Livestock Research Institute, Savar, Dhaka

Start Date: 01-04-2010

End Date: 01-05-2010

Program Area: Quality and Nutrition

Commodity: Milk

Objectives:

To study the feeding effect of Ca-salts of fatty acid on fatty acids profile in milk fat.

Methodology:

The experiment was conducted at Pachutia Dairy Farm, Animal Production Research Division, Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka for a period of 30 days from 1^st April to 1^st May 2010. Twenty cows were divided into five groups considering similar milk yield and parity. The cows in each block were assigned at random to four dietary treatments having five animals in each treatment. The dietary treatments were T_o = German grass + Concentrate mixture without Ca salt of fatty acid,T₁= German grass + Concentrate mixture + 2 % Ca salt of fatty acid, T₂ = German grass + Concentrate mixture + 2.5 % Ca salt of fatty acid ,T₃ = German grass + Concentrate mixture + 3 % Ca salt of fatty acid. Four diets were formulated using green German grass and concentrate mixture with different proportions of Calcium salt of fatty acid. Ingredient and chemical composition of experimental diets. Dry matter, OM, CP and total ash of feed and fecal materials were determined by following the methods described by AOAC. Neutral detergent fiber (NDF) and acid detergent fiber (ADF) were estimated. The fatty acid profile of milk fat were determined according to the procedure developed through using Gas Chromatography in the Institute of Food Science and Technology (IFST), BCSIR, Dhaka. Milk samples were collected from each cow at 7 days interval and were analyzed for fat, protein, lactose, SNF and minerals contents by milk analyzer (Lactostar, Funke Gerber). The fatty acid profile of milk fat was analyzed at the Institute of Food Science and Technology (IFST), BCSIR, Dhaka. The data were analyzed using “MSTAT” statistical program to compute analysis of variance (ANOVA) for a Randomized Complete Block Design (RCBD). Least significant difference (LSD) test was also done to compare the treatment means for different parameters. In the analysis of milk parameters, initial milk yield was taken as covariate and then analyzed accordingly.

Source of Information: Bangladesh J. of Livestock Res. 19(1-2): 10-17, Jan-Dec 2012, ISSN: 1022-3851

Article Link (Online Journal): http://banglajol.info/index.php/BJLR/article/view/26422/17727

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It may be concluded that the feeding Ca-salts of fatty acids increased unsaturated fatty acids content e.g oleic acid, linoleic and linolenic acid of milk fat, and decreased saturated fatty acid (stearic acid) content in milk fat. Based on the above findings it may be concluded that 2.5 % Calcium salt of fatty acid may be recommended for increasing the unsaturated fatty acids content in milk of dairy cattle.

Knowledge Management: Journal