scholarly journals Synergistic Effect of Feeding Aspergillus Awamori and Saccharomyces Cerevisiae on Growth Performance in Broiler Chickens; Promotion of Protein Metabolism and Modification of Fatty acid Profile in the Muscle

2013 ◽  
Vol 50 (3) ◽  
pp. 242-250 ◽  
Author(s):  
Ahmed A. Saleh ◽  
Kunioki Hayashi ◽  
Akira Ohtsuka
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Fatty Acid ◽  
Synergistic Effect ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Protein Metabolism ◽  
Broiler Chickens ◽  
Aspergillus Awamori ◽  
Effect Of Feeding

scholarly journals Growth performance and meat quality of meat-type guinea fowl fed different commercial diets

2021 ◽  
Vol 64 (2) ◽  
pp. 325-334
Author(s):  
Justyna Batkowska ◽  
Kamil Drabik ◽  
Małgorzata Karwowska ◽  
Umair Ahsan ◽  
Ifrah Raza ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Meat Quality ◽  
Fatty Acid Profile ◽  
Broiler Chickens ◽  
Guinea Fowl ◽  
Economic Point ◽  
Carcass Yield ◽  
Commercial Diets ◽  
Meat Type

Abstract. The aim of study was to assess the growth performance, meat quality, and fatty acid composition of meat-type guinea fowl fed balanced commercial diets under two different feeding programs, similar to those for slaughter turkeys and broiler chickens, respectively. A total of 80 4-week-old meat-type guinea fowl divided into two groups (four replicates per group; 10 birds in each replicate) were raised for 14 weeks. One group received commercially available diets in a three-phased program (TM group), whereas the other group was fed commercial diets in a two-phased program (CM group). Growth-performance-related traits were recorded. At the end of rearing (14 weeks of age), eight birds from each group were slaughtered. Carcass yield and technological traits of meat (pH, color, water-holding capacity, natural and thermal loss, tenderness, fatty acid profile) were analyzed. Groups did not differ in terms of body weight as well as carcass yield and characteristics. There was no difference in meat quality and the fatty acid profile of breast and thigh meat of guinea fowl from TM and CM groups. The findings of this study suggest that both commercial diets (for broiler chickens and turkeys) can be used in meat-type guinea fowl rearing. Due to the lower price of diets fed to the CM group and the lack of significant variation in meat quality traits, its use seems to be more justified from an economic point of view.

scholarly journals The Effect of Dietary Camelina sativa Oil or Cake in the Diets of Broiler Chickens on Growth Performance, Fatty Acid Profile, and Sensory Quality of Meat

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 734 ◽  
Author(s):  
Sylwia Orczewska-Dudek ◽  
Mariusz Pietras
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Polyunsaturated Fatty Acids ◽  
Growth Performance ◽  
Fatty Acid Profile ◽  
Broiler Chickens ◽  
Sensory Quality ◽  
Camelina Sativa ◽  
Camelina Oil

The aim of the present study was to determine the effect of supplementing the diets of broiler chickens with Camelina sativa oil or cake as a source of polyunsaturated fatty acids (PUFAs) on their growth performance, fatty acid profile, and sensory quality of meat. The 456 Ross 308 broilers aged 21–42 days were divided into 3 groups with 4 replicates of 38 birds in each. Chickens in the control group I (CTR) were fed a standard grower–finisher feed mixture containing 60 g/kg rapeseed oil. The experimental components, C. sativa oil—CSO (group II) or cake—CSC (group III), were included in a diet based on wheat and soybean at 40 and 100 g/kg, respectively. The use of Camelina oil and cake as feed components did not have a significant effect on the growth performance of the chickens. Analysis of the fatty acid profile in the lipids of the breast muscles showed that Camelina oil and cake reduced the content of monounsaturated fatty acids (p < 0.05) but increased the content of n-3 polyunsaturated fatty acids, especially α-linolenic acid (C18:3) (p < 0.01). Furthermore, both components reduced the ratio of n-6/n-3 PUFAs in the breast muscles (p < 0.01). Sensory analysis revealed that Camelina oil had a beneficial effect on meat juiciness, whereas Camelina cake slightly worsened the flavor and tastiness of the meat. In conclusion, supplementing the diet of broiler chickens with Camelina oil or cake can be an efficient method for modifying the fatty acid profile of the meat lipids in a beneficial way, without any negative impact on the growth performance of the chickens. According to the dietetic recommendations for humans, broiler chicken meat with a higher level of PUFA n-3 can be a good alternative source of these fatty acids in the human diet. Furthermore, Camelina oil improved the juiciness of breast meat.

scholarly journals The modification of the muscle fatty acid profile by dietary supplementation with Aspergillus awamori in broiler chickens

2012 ◽  
Vol 108 (9) ◽  
pp. 1596-1602 ◽  
Author(s):  
Ahmed A. Saleh ◽  
Yahya Z. Eid ◽  
Tarek A. Ebeid ◽  
Akira Ohtsuka ◽  
Kumiko Hioki ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Broiler Chickens ◽  
Fatty Acid Synthase ◽  
Unsaturated Fatty Acids ◽  
Dietary Supplementation ◽  
Breast Muscle ◽  
Aspergillus Awamori ◽  
Control Group ◽  
Treatment Groups

The present study was conducted to show that dietary supplementation with a fungus, Aspergillus awamori, modifies muscle fatty acid profiles in broiler chickens. A total of thirty chicks, selected from a group of 100 chicks aged 15 d, were divided into a control group and two treatment groups (ten birds per treatment). The control group was fed a basal diet, and the treatment groups were fed basal diets supplemented with A. awamori at levels of 0·05 and 0·2 %. From the start of the study at 15 d, the birds were raised for an additional 12 d, and growth and the muscle fatty acid profile were evaluated. Although feed intake was decreased by the fungus, body-weight gain and breast muscle weight were increased, and thus, feed efficiency was improved. Abdominal fat and plasma cholesterol and TAG were decreased, while plasma HDL-cholesterol and breast muscle fat content were increased. Interestingly, muscle α-tocopherol content was increased and muscle thiobarbituric acid-reactive substances were decreased by A. awamori. Furthermore, there was an observed decrease in SFA and an increase in unsaturated fatty acids in the muscle fat due to the fungus feeding. The mRNA of fatty acid synthase, acetyl-CoA carboxylase and Δ-6 desaturase in the muscle were all increased, while the mRNA of 3-hydroxyl-3-methylglutaryl-CoA reductase and carnitine palmitoyl transferase 1A were decreased by the fungus. In conclusion, the present study clearly shows that the muscle lipid profile could be modified by the addition of A. awamori to the diet.

scholarly journals Effect of feeding histidine and β-alanine on carnosine concentration, growth performance and meat quality of broiler chickens

2021 ◽  
pp. 101393
Author(s):  
J. Lackner ◽  
A. Albrecht ◽  
M. Mittler ◽  
A. Marx ◽  
J. Kreyenschmidt ◽  
...  
Keyword(s):  
Growth Performance ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Effect Of Feeding

scholarly journals Effects of Supplements Differing in Fatty Acid Profile to Late Gestational Beef Cows on Steer Progeny Finishing Phase Growth Performance, Carcass Characteristics, and mRNA Expression of Myogenic and Adipogenic Genes

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1904
Author(s):  
Taoqi Shao ◽  
Joshua C. McCann ◽  
Daniel W. Shike
Keyword(s):  
Fatty Acid ◽  
Growth Performance ◽  
Mrna Expression ◽  
Fatty Acid Profile ◽  
Carcass Characteristics ◽  
Beef Cows ◽  
Feed Ratio ◽  
Phase Growth ◽  
Pufa Supplementation ◽  
Relative Mrna Expression

The objective was to investigate the effects of feeding late gestational beef cows supplements differing in fatty acid profile on steer progeny finishing phase growth performance, carcass characteristics, and relative mRNA expression of myogenic and adipogenic genes. Seventy Angus-cross steers (initial body weight [BW] 273 ± 34 kg) born from dams supplemented with either 155 g DM/d EnerGII (CON, rich in palmitic and oleic acids) or 80 g DM/d Strata + 80 g DM/d Prequel (PUFA, rich in linoleic acid, eicosapentaenoic acid, and docosahexaenoic acid) for the last 77 ± 6 d prepartum were used. Longissimus muscle and subcutaneous adipose biopsies were collected to evaluate relative mRNA expression of genes related to myogenesis and adipogenesis. Steers were slaughtered at 423 ± 6 d of age. No treatment × time interaction or treatment effect (p ≥ 0.21) was detected for steer finishing phase BW, while steers from PUFA supplemented dams tended (p = 0.06) to have a greater gain to feed ratio (G:F). Neither carcass characteristics nor relative mRNA expression was different (p ≥ 0.11). In conclusion, late gestation PUFA supplementation tended to increase steer progeny finishing phase G:F, but had no effects on finishing phase BW, carcass characteristics, or relative mRNA expression during the finishing phase.

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