scholarly journals Effect of Dietary Rhodobacter capsulatus on Cholesterol Concentration and Fatty Acid Composition in Broiler Meat

2007 ◽  
Vol 86 (9) ◽  
pp. 1920-1926 ◽  
Author(s):  
U. Salma ◽  
A.G. Miah ◽  
T. Maki ◽  
M. Nishimura ◽  
H. Tsujii
2016 ◽  
Vol 2 (4) ◽  
pp. 282-287 ◽  
Author(s):  
Huan Xing ◽  
Sujun Luan ◽  
Yongbo Sun ◽  
Renna Sa ◽  
Hongfu Zhang

2009 ◽  
Vol 102 (2) ◽  
pp. 226-232 ◽  
Author(s):  
Krystal J. Merrells ◽  
Heather Blewett ◽  
Jennifer A. Jamieson ◽  
Carla G. Taylor ◽  
Miyoung Suh

The present study investigated the effect of dietary Zn deficiency during sexual maturation on sperm integrity and testis phospholipid fatty acid composition. Male weanling Sprague–Dawley rats were randomised into four dietary groups for 3 weeks: Zn control (ZC; 30 mg Zn/kg); Zn marginally deficient (ZMD; 9 mg Zn/kg); Zn deficient (ZD; < 1 mg Zn/kg); pair fed (PF; 30 mg Zn/kg) to the ZD group. Morphology of cauda epididymal sperm and lipid profiles of testis phospholipids were analysed. The rats fed the ZD diet had a lower testis weight (P < 0·02). Seminal vesicles and prostate weight were also lower in the ZD and PF groups. Rats fed the ZD diet, but not the ZMD diet, had 34–35 % more abnormal spermatozoa and 24 % shorter sperm tail length than the ZC and PF rats (P < 0·001). Testis cholesterol concentration was higher in the ZD rats compared with the ZC and PF rats (P < 0·04). Testes were highly enriched with n-6 fatty acids by showing n-6 : n-3 fatty acid ratios of 27:1 in phosphatidylcholine (PC) and 23:1 in phosphatidylethanolamine (PE). The dominant fatty acid in testes was docosapentaenoic acid (22 : 5n-6), comprising 15 and 24 % of PC and PE, respectively. This fatty acid was significantly lower in the ZD rats, whereas 18 : 2n-6 was higher compared with the rats in the other diet groups. These results demonstrate that severe Zn deficiency adversely affects sperm integrity and modulates testis fatty acid composition by interrupting essential fatty acid metabolism. This suggests that Zn deficiency-associated abnormal testicular function is perhaps preceded by altered membrane fatty acid composition, especially of a major fatty acid, 22 : 5n-6.


2017 ◽  
Vol 57 (9) ◽  
pp. 1899
Author(s):  
Xubiao Wei ◽  
Xiudong Liao ◽  
Jun Cai ◽  
Zhaojun Zheng ◽  
Lulu Zhang ◽  
...  

An experiment was conducted to investigate the effects of Bacillus amyloliquefaciens LFB112 in the diet on growth of broilers and on the quality and fatty acid composition of broiler meat. 440 1-day-old Arbor Acres male broiler chicks were randomly allocated into five dietary treatments with eight replicates in a completely randomised design for 42 days. The treatments were as follows: basal diet (control) or the basal diet supplemented with 107 colony-forming units (CFU) B. amyloliquefaciens/kg (B7), 108 CFU B. amyloliquefaciens/kg (B8), 109 CFU B. amyloliquefaciens/kg (B9) or 40 mg aureomycin/kg (antibiotic). The results showed that B. amyloliquefaciens-supplemented groups had greater (P < 0.05) average daily gain during Days 1 to 21, Days 22 to 42 and Days 1 to 42, and improved (P < 0.05) feed conversion rate during Days 1 to 42 compared with the control. Broilers in the B7 and B9 groups had higher (P < 0.05) average daily feed intake than those in the control group in all experimental phases. Broilers fed either B. amyloliquefaciens or antibiotic diet showed higher (P < 0.05) a* value, b* value and lower L* value in the breast muscle than those in the control group. Dietary B. amyloliquefaciens supplementation increased (P < 0.05) the contents of C14:1, C16:1c, C18:1t, C18:1c, C20:1n-9, total monounsaturated fatty acids, C18:2c, C18:3n-3, C20:2n-6, C20:3n-6, C20:3n-3, C20:4n-6, C20:5n-3, C22:6n-3 and total polyunsaturated fatty acids as well as ratio of polyunsaturated fatty acids to saturated fatty acids in breast muscle and the concentrations of C17:1, C20:1n-9, C18:2t-9, t-12, C20:2n-6, C20:3n-6, C20:3n-3, C20:4n-6, C20:5n-3 and C22:6n-3 in thigh muscle of broilers. The results indicated that B. amyloliquefaciens improved broilers’ growth performance, meat quality and fatty acid composition.


2018 ◽  
Vol 7 (3.7) ◽  
pp. 167
Author(s):  
Jannatara. Khatun ◽  
Teck Chwen Loh ◽  
Henny Akit 1 ◽  
Hooi Ling Foo ◽  
Rosfarizan Mohammad

A study was conducted to evaluate the effect of feeding diet containing palm oil (PO) and sunflower oil (SO) and their combination on bird performance, liver fatty acid profile and meat cholesterol content of broiler. A total of 144 day-old broiler chicks (Cobb) randomly assigned into four dietary treatments and fed for six weeks. The dietary treatments were T1, 6% PO (control); T2, 4% PO + 2% SO; T3, 2% PO + 4% SO; and T4, 6% SO. The body weight gain increased and feed conversion ratio (FCR) reduced with the increasing level of unsaturated fatty acid sources oil (SO) compared to control group (PO). Significantly higher (P<0.05) overall daily body weight gain and lower FCR were found in broilers fed dietary treatments T3 compared to other treatments. However, no differences (P<0.05) were found in daily body weight gain and FCR among the two combination of oil and SO alone. Dietary treatments influence the fatty acid composition of liver and increasing the dietary SO decreased the level of C16:0, C18:0, C18:1n-9, SFA and MUFA and increased the C18:2n-6, UFA: PUFA, UFA: SFA and PUFA: SFA. Birds fed PO had higher cholesterol concentration in meat which was decreased by supplementation of SO in broiler diet. However, cholesterol concentration was not differed in meat among the dietary SO and combination of SO and PO. It could be concluded that supplementation of a combination of PO and SO in broiler diet increased performance, altered the fatty acid composition of liver tissue and decreased cholesterol content of meat which may have a favorable impact on consumer’s health. 


2006 ◽  
pp. 25-30
Author(s):  
Tamás Pálfy ◽  
János Gundel

The aim of our investigation was to determine the effects of increased PUFA (polyunsaturated fatty acids) content on the colour, total pigment content, organoleptic characteristics and oxidative stability of poultry meat. The experiment was carried out with 1200 Ross-308 cock chicklings. Animals were fed with a 3 phase diet, and in each phase, additional fat was added to the feed. The isocaloric and isonitrogenic feed was produced as the breeder organization suggested; only the fat content differed (4 treatments: pig fat (lard), sunflower oil, soy oil, flax-seed oil).The different fat complements did not influence broiler production. However, the fatty acid composition of meat was similar to the fatty acid composition of feed (additional fats). The analyses of meat samples, after a storage period, did not significantly prove the possible negative effects of higher PUFA content.


2022 ◽  
Author(s):  
Makiwa Simeon Mthana ◽  
Christian Sabelo Gajana ◽  
Bethwell Moyo ◽  
Arno Hugo ◽  
Nasiphi Makhamba ◽  
...  

Abstract The study was conducted to determine the response in growth performance, physicochemical properties and fatty acid composition of broiler meat fed incremental levels of M. pruriens seed meal. A total of 112 Cobb 500, seven days old, unsexed broiler chicks with body weight of 150 ± 5.47 g/bird (mean ±SD) were used. Chicks were allotted to pens in a completely randomized design hence assigned to four experimental diets containing 0, 10, 15, and 20% of MPSM, respectively. Each diet was offered ad libitum with clean water to 28 broilers in each treatment. There was a linear decrease in average daily feed intake (ADFI), average daily gain (ADG) and final body weight (FBW) with incremental levels of MPSM (P < 0.05). Feed conversion ratio (FCR) increased linearly with increasing MPSM levels while Final Body Wight (FBW) decreased linearly with increasing levels of MPSM (P < 0.05). Meat pH24 and colour parameters showed no relationship with increasing levels of MPSM (P > 0.05). Thawing loss, carcass weight and cooking loss showed a linear increase with increasing levels of MPSM (P < 0.05). However, shear force showed a linear decrease with increasing levels of MPSM (P > 0.05). Muscle fat, fat free dry matter (FFDM) and moisture, mono-unsaturated fatty acids and margaric acid showed no relationship with increasing levels of MPSM (P > 0.05), however, a linear decrease (P < 0.05) on myristic acid and palmitic acid with incremental levels of MPSM was observed. Arachidic acid, and α-Linolenic acid increased linearly with inclusion level of MPSM (P < 0.05). Other poly-unsaturated fatty acids, fatty acid ratios and health lipid indices indicators showed no relationship with increasing levels of MPSM (P > 0.05). Increasing inclusion levels of MPSM impairs growth performance of broilers and may also improve broiler quality and fatty acid some fatty acids.


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