The potential of rapid visco-analysis starch pasting profiles to gauge the quality of sorghum as a feed grain for chicken-meat production

Context Cereal grains used by the poultry industry in Australia vary widely in available energy and protein content, which is often reflected as variation in bird performance. Rapid or real-time techniques for measuring the apparent metabolisable energy (AME) content of cereal grains for birds include near infrared spectroscopy, rapid visco-analysis starch pasting profiles and colour analysis. Aims This study involved retrospective colour analysis of Australian sorghum samples reported in recent publications, and sorghum samples used in commercial production of chicken meat in Australia. The main objective was to develop regression models as tools to predict AME values for sorghum from colour analysis of the grain for timely assistance to nutritionists formulating commercial diets and purchasing sorghum grain. Methods Stepwise regression analysis was used to correlate AME values for 18 samples of red, yellow and white sorghum with their CIELAB colour variables L*, a* and b*, which indicate lightness (from black to white), green-red component and blue-yellow component, respectively. The model was then used to predict AME values for sorghum in previously reported studies. Key results The multivariate model AMEsorghum (MJ/kg DM) = 31.139 – 0.189 L* – 0.604 a* + 0.189 b* (P = 0.0021, R2 = 0.638) was shown to predict AME of red sorghum samples to within an average difference of 0.67 MJ/kg DM in one published study. The sorghum sample showing the largest difference contained kafirin 61.5 g/kg. Data from another published study indicated larger differences (0.93 MJ/kg DM) between predicted and measured values for sorghum. The largest difference of 1.41 MJ/kg DM was observed for a sample of white sorghum containing the lowest concentrations of kafirin (41.4 g/kg), phytate (4.93 g/kg) and total phenolics (3.00 mg GAE/g). Conclusions CIELAB colour analysis has potential as a rapid, inexpensive indicator of AME values for sorghum as a feed grain for chicken-meat production, but high concentrations of antinutritive components, such as kafirin, detract from this potential. Implications A rapid, inexpensive indicator of kafirin, such as near infrared, is required to complement CIELAB colour analysis.

Download Full-text

The productivity and quality of chicken meat of cage and free-range growing

Poultry and Chicken Products ◽

10.30975/2073-4999-2020-22-1-53-55 ◽

2020 ◽

Vol 22 (1) ◽

pp. 53-55

Author(s):

V.S. Lukashenko ◽

◽

E.A. Ovseichik ◽

A.A. Komarov ◽

◽

...

Keyword(s):

Chicken Meat ◽

Free Range

Download Full-text

ZOOGYGENIC ASPECTS OF APPLICATION OF HYDROCARBON HYDROGEN AND ASSESSMENT OF QUALITY OF CHICKEN MEAT

Scientific Notes Kazan Bauman State Academy of Veterinary Medicine ◽

10.31588/2413-4201-1883-242-2-89-93 ◽

2020 ◽

Vol 242 (2) ◽

pp. 89-93

Author(s):

I.G. Kirillov ◽

◽

R.A. Asrutdinova ◽

L.F. Yakupova ◽

◽

...

Keyword(s):

Chicken Meat

Download Full-text

Оrganic Meat Production of Broiler Chickens Hubbard Redbro Cross

International Journal of Veterinary Science ◽

10.37422/ijvs/20.072 ◽

2020 ◽

Keyword(s):

Broiler Chickens ◽

Raw Materials ◽

Animal Health ◽

Meat Products ◽

Poultry Meat ◽

Meat Production ◽

Significant Difference ◽

Environmentally Safe ◽

The Impact

This article presents the results of studying the impact of housing and feeding conditions on broiler chickens of Hubbard RedBro cross, as well as the quality of products obtained when using floor and cage content, in a farm. It established that when receiving a mixed feed of own production using feed raw materials grown on a farm without the use of pesticides, a statistically significant decrease in potentially dangerous substances for animal health is recorded. Compared with factory feed, it has reduced the content of pesticides by 14 times, and mercury and arsenic by 24 times, cadmium by five times, and lead by ten times. The results of the study of economic indicators of growing Hubbard RedBro cross broiler chickens, as well as the chemical composition and quality of carcasses, indicated that there was no significant difference between the floor and cell conditions of keeping. Still, the use of a diet based on eco-feeds contributed to a statistically significant decrease in the concentration of toxic metals in the muscles of the poultry of the experimental groups. As a result, it found that the use of the studied compound feed in the diets of broiler chickens increased the indicators of Biosafety and ensured the production of environmentally safe ("organic") poultry meat products.

Download Full-text

Lipid Profile of Pig Tissues Contrasting in Meat Production

The Natural Products Journal ◽

10.2174/2210315509666191203124902 ◽

2019 ◽

Vol 09 ◽

Author(s):

Vitaly A. Bekenev ◽

Anatoly A. Arishin ◽

Sergei N. Mager ◽

Izolda V. Bolshakova ◽

Natalia L. Tretyakova ◽

...

Keyword(s):

Lipid Peroxidation ◽

Fatty Acids ◽

Linoleic Acid ◽

Live Weight ◽

Blood Lipid ◽

Meat Production ◽

Thoracic Vertebrae ◽

Organoleptic Properties ◽

Biochemical Characteristics

Background: Studies were carried out on two breeds of pigs - Pietrain (P), and Kemerovo (K), contrasting in composition of carcasses, and their hybrids. Objective: The purpose of this work was to establish the characteristics of the composition of lipids of intramuscular fat (IMF), back fat and serum, organoleptic qualities in animals of these breeds. Methods: Animals of 10 individuals in each group were fed on a standard feed and slaughtered with a live weight of 95-100 kg. The quality of carcasses, the biochemical characteristics of blood, the composition of fatty acids and cholesterol in meat and fat, and blood lipid peroxidation were determined. Results: Thickness on the back fat (BF) at the level of 6-7 thoracic vertebrae with a live weight of 100 kg was 35.8 ± 1.65 mm in pigs of breed K, in hybrids - 27.6 ± 1.06, and in breed P - 19, 6 ± 1.43 mm. IMF in pigs of breed K was almost 4.5 times greater than that of breed P. IMF K breed contained 2 times less cholesterol than in P (2.34 vs. 4.68%). In the IMF, K was 2 times less polyunsaturated fatty acids (PUFA), than P, 7.82 and 15.22%, linoleic acid, 6.74% and 12.42% respectively (p <0.005).The organoleptic properties of meat and salted back fat were significantly higher in breed K (P = 0.05). Conclusion: The data obtained allow us to establish priorities in the use of products of specific breeds of pigs, depending on medical requirements.

Download Full-text

Progress towards reduced-crude protein diets for broiler chickens and sustainable chicken-meat production

Journal of Animal Science and Biotechnology ◽

10.1186/s40104-021-00550-w ◽

2021 ◽

Vol 12 (1) ◽

Author(s):

Sonia Yun Liu ◽

Shemil P. Macelline ◽

Peter V. Chrystal ◽

Peter H. Selle

Keyword(s):

Amino Acids ◽

Amino Acid ◽

Broiler Chickens ◽

Crude Protein ◽

Plasma Concentrations ◽

Essential Amino Acids ◽

Chicken Meat ◽

Meat Production ◽

Accurate Identification ◽

Reduced Crude Protein

AbstractThe prime purpose of this review is to explore the pathways whereby progress towards reduced-crude protein (CP) diets and sustainable chicken-meat production may be best achieved. Reduced-CP broiler diets have the potential to attenuate environmental pollution from nitrogen and ammonia emissions; moreover, they have the capacity to diminish the global chicken-meat industry’s dependence on soybean meal to tangible extents. The variable impacts of reduced-CP broiler diets on apparent amino acid digestibility coefficients are addressed. The more accurate identification of amino acid requirements for broiler chickens offered reduced-CP diets is essential as this would diminish amino acid imbalances and the deamination of surplus amino acids. Deamination of amino acids increases the synthesis and excretion of uric acid for which there is a requirement for glycine, this emphasises the value of so-called “non-essential” amino acids. Starch digestive dynamics and their possible impact of glucose on pancreatic secretions of insulin are discussed, although the functions of insulin in avian species require clarification. Maize is probably a superior feed grain to wheat as the basis of reduced-CP diets; if so, the identification of the underlying reasons for this difference should be instructive. Moderating increases in starch concentrations and condensing dietary starch:protein ratios in reduced-CP diets may prove to be advantageous as expanding ratios appear to be aligned to inferior broiler performance. Threonine is specifically examined because elevated free threonine plasma concentrations in birds offered reduced-CP diets may be indicative of compromised performance. If progress in these directions can be realised, then the prospects of reduced-CP diets contributing to sustainable chicken-meat production are promising.

Download Full-text