Dr Valeriy Kryukov likes this technical article:
1 IntroductionAmino acids are organic compounds containing both amino (—NH2) and carboxyl (—COOH) groups. Due to the presence of asymmetric carbon, all amino acids except glycine exhibit optical activity and exist as D- and L-isoforms or enantiomers (Lehninger et al., 2005). The asymmetric α-carbon imparts chirality, a phenomenon where the molecule is not superimposable to its mi ...
Participation in Forum on March 20, 2024
An extremely important area of research. Obvious facts that have not been explained, and therefore ways to manage them have not been developed.Thanks!
Dr Valeriy Kryukov likes this technical article:
Pressure on feed cost is and will remain a decisive factor for profitability and sustainability in pork and poultry production. In the backdrop of soaring inflation, other production costs have escalated. Corollary minimizing the costs associated with production has never been of greater importance. Arguably, feed formulation is a precise science that seek to compute combination of feedstuffs to m ...
Dr Valeriy Kryukov likes this technical article:
A 41-d floor pen experiment was conducted to evaluate the effects of supplementing higher doses (up to 3 times the standard dose of 500U) of phytase (CIBENZA® PHYTAVERSE®, Novus International, Inc.) in broiler chicks fed non-phytate phosphorus (NPP) deficient corn-SBM based diets. A total of 1584 Ross 308 male broiler chicks were assigned to 6 treatments with 12 pens/trea ...
Dr Valeriy Kryukov likes this technical article:
IntroductionProtein is a major and expensive component of animal feed, accounting for about 20% of the total dry matter content of swine and poultry diets. Soybean meal is the leading source of feed protein [1]. In the gut, protein is hydrolyzed by endogenous proteases, principally pepsin (EC 3.4.23.1), trypsin (EC 3.4.21.4) and chymotrypsin (EC 3.4.21.1), releasing peptides that are processed fur ...
Dr Valeriy Kryukov likes this technical article:
The objective of this study was to evaluate if the supplementation of guanidinoacetic acid (GAA) either on top or included with an energy matrix in broiler feed, improves or equalizes the productive and economic parameters in broilers, respectively. The study was carried out in an experimental farm located in the department of Santander-Colombia and lasted 34 days. A total of 1088 Ross 308 AP day- ...
Participation in Forum on February 27, 2024
Dear colleagues!Of course, this article is interesting and the presented protocol is beyond doubt. However, the authors do not describe the specifics (differences) of the tested phytase from many other 6-phytases studied earlier. This excludes the possibility of explaining why a positive effect was obtainedProf. V.S Kryukov
Dr Valeriy Kryukov likes this technical article:
I. IntroductionIn all vegetable-based diets such as wheat, corn and soybean meal, up to 83% of dietary phosphorus (P) is bound to phytate (Li et al., 2016; Aureli et al., 2017). Phytate is known to contain bound P that is unavailable to the broilers, resulting in the use of inorganic-P sources such as monocalcium phosphate and dicalcium phosphate (NRC, 1994) in order to fulfill the broiler P requi ...
Participation in Forum on February 15, 2024
Dr Valeriy Kryukov likes this technical article:
IntroductionThere are four forms of phytic acid (inositol hexakisphosphate, InsP6), which have been identified in nature, myo, neo-, scyllo- and D-chiro-, that differ in their stereochemical conformation (Fig. S1) and association with metal ions as phytates in different soils (Turner et al., 2002). Among these, myo-inositol hexakisphosphate (InsP6) garners the most attention from plant scientists. ...