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

Feeding Effects of Total Mixed Ration on Rumen Metabolic Profile in Cattle

R Jahan
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

MR Amin*
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

N R Sarker
Bangladesh Livestock Research Institute, Savar, Dhaka, Bangladesh

M T Kamal
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

A feeding trial was undertaken to select the best combination of roughage and concentrate based on total mixed ration (TMR), to better rumen environment and determine the feeding effects of TMR on rumen metabolic profile in cattle. The experiment was conducted at Bangladesh Livestock Research Institute (BLRI) for a period of 35 days. A total of 5 types of TMR was prepared on fed basis with different roughage and concentrate ratios as T1=70:30, T2=60:40, T3=50:50, T4=40:60, and T5=30:70. Five cannulated bulls with an average live weight ranging from 200 to 300 kg and approximately 18 months of age were selected for the experiment. The present study indicated that there was no significant difference in pH among different treatment groups. Concentration of total volatile fatty acids (TVFAs) was highest in T2 group which was found to be increased up to 12 h after feeding, then gradually decreased up to 24 h. Concentration of total nitrogen (TN), ammonia nitrogen (NH₃-N), non protein nitrogen (NPN) and protein nitrogen (PN) were highest in T5 group. Concentration of total nitrogen (TN), ammonia nitrogen (NH₃-N) and protein nitrogen (PN) were gradually decreased up to 12 h after feeding but then gradually increased trend observed up to 24 h. Concentration of non protein nitrogen (NPN) was found to be decreased gradually from 0 h up to 24 h after feeding. The result also indicated that rumen NH₃-N was positively correlated with TN intake of the animal. It can be concluded from the present study that the TMR provided better rumen environment at different hours of digestion could be used for better rumen fermentation. The best combination of roughage to concentrate ratio (30:70) was in T5 group for better N utilization to achieve maximum performance through proper feeding which might reflect the gross return of cattle production.

Keywords: Feeding effects, Total mixed ration, Rumen metabolic profile, Cattle feed

Location: Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka.

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Feed, Cattle

Objectives:

The present study was undertaken to compare different ration of TMR based on combination of roughage and concentrate and select the best one for better rumen environment.

Methodology:

Site of the experiment The experiment was conducted at Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka. Animal selection Five cannulated bulls with an average live weight of 200 to 300kg and approximately 18 months of age were selected for the experiment. Dietary Treatments During the trial period five cannulated bulls were randomly assigned in replicated 5x5 Latin Square Design (LSD) and were fed with total mixed ration (TMR) diets. Diet combinations of roughage: concentrate was 70:30 (T1); 60:40 (T2); 50:50 (T3); 40:60 (T4) and 30:70 (T5). Different types of TMR had been produced with different ratio of roughages (grind soybean straw) and concentrates. The total mixed ration (TMR) contained around 16% CP. Collection Trial During the trial period, daily feed intake and leftover feed were recorded individually. Approximately, 50 ml of rumen fluid were collected using the installed syringe on the 7th day of each experimental period at 0, 3, 6, 12 and 24 h after feeding. The pH was measured immediately after collection. Chemical analysis Chemical analysis of the collected rumen liquor samples for the estimation of the following parameters were done in the Animal Nutrition Laboratory at BLRI. Rumen pH, Total Volatile Fatty Acids (TVFA), Total nitrogen (TN), Ammonia Nitrogen (NH3-N), Total Solids (TS), Non Protein Nitrogen (NPN), Protein Nitrogen (PN) were studied in the experiment to evaluate the feeding effects of rumen environment in ruminants. Statistical analysis An analysis of variance was done to determine the significant differences in treatment means. Collected data were analyzed statistically by Post Hoc Multiple Comparisons of SPSS 11.5 for Windows (SPSS Inc. 2002). The layout of the experiment was in Latin Square Design (LSD).

Source of Information: Bang. J. Anim. Sci. 2018. 47 (1):35-39

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Total mixed rations (TMR) can help to achieve maximum performance and can be the most adopted method for feeding high producing animals in almost all over the world.The best combination of roughage to concentrate ratio was in T5 group for better N utilization to achieve maximum performance through proper feeding. It can be concluded from the findings of the present study that using a combination of the proper amount of roughage and concentrates in a TMR ensure better rumen environment for fermentation and TMR can very well replace the other high nutritive and expensive roughage sources without adversely affecting growth and milk production in indigenous dairy cow.

Knowledge Management: Journal