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Effect of different levels of sorghum inclusion and the addition of a serine protease on live performance of broilers from 1 to 35 days of age

Published on: 07/02/2018
Author/s : Albaraa Sarsour*1, Hernan Cordova-Noboa1, Edgar Oviedo-Rondón1, Pedro Ferzola1. 1 North Carolina State University, Raleigh, NC. Novus International, St. Charles, MO.

Sorghum can be utilized to replace corn in areas where corn is not readily available. Serine protease has been proposed to improve the digestibility of sorghum because it could degrade disulfide bonds of kafirin proteins. One experiment was conducted to evaluate the effects of sorghum inclusion level and the addition of a serine protease on chicken live performance from 1 to 35 d of age. Eight tre...

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July 2, 2018

Great work

July 16, 2018
Assistant Professor Dr Nihad Alnidawi good work
Robert Ouko Robert Ouko
BSc. Animal Science
July 2, 2018
Good work
Dr Ajay Bhoyar Dr Ajay Bhoyar
Global Poultry Manager
Novus International Novus International
Missouri, United States
July 2, 2018

Dr. John Kaijage,
Your point of view on tannins content of sorghum is important to consider. In a study titled 'Cibenza DP 100 improves performance and energy utilization in chickens fed high tannin sorghum', it was concluded that the negative effects of using high tannins sorghum (Tannin value of 1.63%; catechin equivalent and a kafirin index of 5.20) in diets were decreased with the addition of serine protease enzyme.

Reference: Carvajal-Jiménez, J. G., Rincón, K., & Oviedo-Rondon, E. O. (2012). Poster #P340 Protease improves performance and energy utilization in broilers fed diets with high tannin sorghum. Poultry Science Vol. 91 (E-suppl. 1) 2012 Poultry Science Association Annual Meeting Abstracts (Vol. 82).

July 3, 2018

Dr. Ajay Bhoyar Yes it is, serine protease helps against tannin. My laboratory (Kronos Agro LLC) always detect tannin level before sorghum will be added to the feed. To minimize risk, we recommend using sorghum with low tannin content. From another side, tannin is helpful for the gut, reducing unpleasant bacteria.

mst.dilruba begum mst.dilruba begum
Bsc and Msc
July 3, 2018

It is a praiseworthy article.

July 3, 2018
Enter your comment The work is okay
Mangalmurti Pathak Mangalmurti Pathak
MVSc & A.H. Animal Nutrition
July 3, 2018
When we use Sorghum to replace Corn, normally there is more deposition of fat in broilers .The energy requirement of maintenance increases compared to corn.Need to study energy balance with or without out protease enzyme along with nitrogen balance study.
mohammad aslam mohammad aslam
Specialist in Animal Nutrition
July 4, 2018
Much informative study indeed,
Fabiola de Belalcazar Fabiola de Belalcazar
Quimico MsC Nutricion Animal
July 6, 2018

Excellent work. In Colombia, during the first semester of the year, the Nutrianalisis laboratory, analyzing the samples of sorghum sent by the clients, found that a high percentage of them (75%) correspond to the category high in tannins, content of condensed tannins of 3% (catechin equivalent). The application of enzymes, a solution to take better advantage of this resource that is often rejected.

Amin Ghanbari Amin Ghanbari
Animal Nutritionist
July 8, 2018

it is a good study, but did you compare the cost of sorghum with corn and final price of ratio with content of corn or sorghum?

July 16, 2018
Good innovation but hope sorghum has high fibre content which can lead to malabsorption.
John Kaijage John Kaijage
PhD in Tropical Animal Production
July 5, 2019

It is a good study but anticipated effects and interactions sorghum inclusion and tannin levels in diets were not considered. Serine protease act and improve digestibility of kafirin in sorghum-based diets. However, there is a positive correlation between kafirin and tannin content in grain sorghum. Therefore, it was quite important to consider not only levels of sorghum but also tannin levels. The effect serine protease will depend very much on the level of tannin content in the diet.

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