Explain the digestibility coefficient - proteins, Biology

Assignment Help:

Explain the Digestibility Coefficient?

You have earlier learnt that dietary proteins are hydrolyzed to amino acids during digestion. The digestion begins in the stomach by the action of pepsin and later completed in the intestines by trypsin, erepsin and other enzymes. Proteins differ in their digestibility. Egg and milk proteins are easily digested and converted into amino acids while pulse proteins are slowly digested to amino acids. Amino acids are absorbed into the blood stream and the un-hydrolyzed portion of the protein is wasted in the faeces. Thus, digestibility coefficient of protein refers to the percentage of the ingested protein absorbed into the blood stream after the process of digestion is complete. When an animal is fed on nitrogen (N)-free diet, certain amount of nitrogen is excreted in the faeces. This is derived mainly from the digestive juices. This is called 'endogenous faecal N.' When a protein food is given, the N found in faeces consists both of endogenous N and food N lost in digestion. To find out N lost in digestion, endogenous faecal N should also be determined. For the determination of the digestibility coefficient, therefore, the data on food nitrogen intake (I,), total faecal nitrogen excreted (Fn) and endogenous faecal nitrogen (Fe) are required. The digestibility coefficient can thus be calculated using the formula:

392_Explain the Digestibility Coefficient - Proteins.png

The digestibility coefficients of proteins are influenced by several factors, such as, the presence of indigestible carbohydrates like cellulose and hemi-cellulose and the presence of proteolytic enzyme inhibitors.


Related Discussions:- Explain the digestibility coefficient - proteins

Describe genetic recombination , Describe Genetic Recombination ? Genet...

Describe Genetic Recombination ? Genetic recombination, which provides the variation necessary for evolution, can occur through a variety of processes during cell reproduction:

Conditions requiring rapid treatment of hypertension, List of Conditions Re...

List of Conditions Requiring Rapid Treatment of Hypertension 1) Cardiac: • Acute aortic dissection • Acute left ventricular failure • Acute or evolving myocardial i

Define characteristics of probiotics, Define Characteristics of probiotics?...

Define Characteristics of probiotics? Are microorganism Promote a healthy intestinal microflora Ensure colonization resistance to pathogens Destruction of ge

Ventilation of tracheal system - diffusion, Ventilation of Tracheal System ...

Ventilation of Tracheal System - Diffusion Gaseous exchange due to diffusion generally takes care of the oxygen needs of most small insects. Similarly fairly large but inactiv

Dormant vegetative structures, Dormant Vegetative Structures You have ...

Dormant Vegetative Structures You have learnt that light a period of chilling or application of gibberellin often breaks seed dormancy and stimulates seed germination. Vegetat

Presenting features of exstrophy of the bladder, Presenting Features ...

Presenting Features Anterior abdominal wall and anterior bladder wall is deficient and on the surface everted posterior wall of bladder with two ureteric orifices is seen.

Plant biodiversity, discuss why obelia is considered to be a special organi...

discuss why obelia is considered to be a special organism in zoology

Explain the estimated average intake (ear), Explain The Estimated Average I...

Explain The Estimated Average Intake (EAR)? Considering that the nutrient requirements follow a normal distribution, the EAR is defined as 'the median usual intake that meets t

Determination of limb polarities, Determination of Limb Polarities The...

Determination of Limb Polarities The limb pattern is characterized by three axes (or polarities) as displayed in diagram:  (1) The direction from the shoulder (or hip) to t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd