Performance, meat quality and fatty acid profile of broiler chickens fed mixed semi-purified glycerin

2019 ◽  
Vol 59 (2) ◽  
pp. 295 ◽  
Author(s):  
E. R. M. Garcia ◽  
A. E. Murakami ◽  
I. C. Ospina-Rojas ◽  
A. F. Q. G. Guerra

The aim of the present study was to evaluate the effects of the inclusion of mixed (animal and vegetable sources) semi-purified glycerin (MSPG) in broiler diets on performance, litter moisture, serum glycerol concentration, carcass and parts yields, meat quality, and the fatty acid profile. In total, 576 1-day-old male Cobb 500 broiler chicks were distributed in a completely randomised design into four treatments (0%, 2.5%, 5.0% and 7.5% dietary inclusion levels of MSPG, as-fed basis), with six replicate pens of 24 birds each. The apparent metabolisable energy corrected for nitrogen balance and energy metabolisability coefficient values of the MSPG were 12.33 MJ/kg DM and 81.61% respectively. There was no significant (P > 0.05) effect of the MSPG concentration on the performance, and carcass and parts yields or broiler meat-quality variables, except for thigh meat colour, in which the yellowness value (b*) decreased linearly (P < 0.05) with an increasing inclusion level of MSPG. Litter moisture and serum glycerol increased linearly (P < 0.05) and the lipid profile of the thigh and drumstick meat of broilers at 42 days of age was slightly altered (P < 0.05) with an increasing MSPG. Mixed semi-purified glycerin can be used at up to 7.5% in broiler diets without impairing performance, meat quality, carcass and parts yields from 1 to 42 days of age. However, special attention should be paid to litter moisture.

2020 ◽  
Vol 8 (1) ◽  
pp. 357
Author(s):  
Jean Kaique Valentim ◽  
Heder José D'Ávila Lima ◽  
Tatiana Marques Bittencourt ◽  
Jonatan Mikhail Del Solar Velarde ◽  
Luciana Kimie Savay Da Silva ◽  
...  

The present study aimed to evaluate carcass, cut yields and gastrointestinal tract biometry, the meat quality and body lesions of broiler chicken fed with four levels of corn distillers dried grain with soluble in experimental diets. A total of 700 day-old mixed flock Cobb 500 broiler chicks were distributed in a completely randomized design with five treatments, seven replicates by treatment with 20 birds each. The experimental diets were controlled with crescent inclusion levels of DDGS (4, 8, 12 and 16 %). At 35 days of age 2 broilers from each lot was selected, weighted and identified with medium weight from the experimental unit for slaughtering and evaluation of cuts yield, carcass and gastrointestinal biometry. To evaluate hock lesions and broiler meat quality. Quadratic effect was observed in reference to the weight of the carcass and chest can be included the levels up to 11.29 percent and 6.16 percent respectively. For the other variables of income of casting, edible organs and not edible and there was no significant effect on gastrointestinal biometrics, only for the total size of the gastrointestinal tract there was quadratic effect being the level of 4.25% indicated for increased size of the organs. For all welfare and meat quality variables evaluated, there was no difference between the DDGS levels used in broiler diets and control diet. These findings means that the addition of up to 16 % DDGS in diets can be an alternative to feed chicken without inducing body lesions neither altering broiler meat quality.


2010 ◽  
Vol 89 (7) ◽  
pp. 1571
Author(s):  
M.W. Schilling ◽  
V. Battula ◽  
R.E. Loar II ◽  
V. Jackson ◽  
S. Kin ◽  
...  

2021 ◽  
Vol 64 (2) ◽  
pp. 325-334
Author(s):  
Justyna Batkowska ◽  
Kamil Drabik ◽  
Małgorzata Karwowska ◽  
Umair Ahsan ◽  
Ifrah Raza ◽  
...  

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.


2011 ◽  
Vol 51 (No. 1) ◽  
pp. 31-38 ◽  
Author(s):  
S. Bogosavljevic-Boskovic ◽  
V. Kurcubic ◽  
Petrovic MD ◽  
V. Radovic

The objective of this study is an analysis of meat quality in broilers of standard fast-growing hybrid Hybro G, reared in two different non-industrial systems (extensive rearing in a poultry house or &ldquo;extensive indoor&rdquo; system and rearing in a poultry house using a free range or &ldquo;free-range&rdquo; system). Quality parameters, i.e. proportions of basic carcass parts (breasts, drumsticks and thighs), abdominal fat, and proportions of basic tissues (muscles, bones and skin) in more valuable carcass parts, were investigated. The aim of the investigation was to analyse the effect of the two non-industrial rearing systems and broiler sex on the above-mentioned traits of broiler meat quality. The used rearing systems (free-range and extensive indoor ones) did not have a statistically significant effect on the proportions of major basic carcass parts and of abdominal fat in broiler chickens (P &gt; 0.05). Heavier carcasses at slaughter (on the 56<sup>th</sup> day of fattening) were recorded in the male broilers compared to the female ones, the differences being statistically significant (P &lt; 0.01). The drumstick proportion in the male broiler carcasses was statistically significantly higher (P &lt; 0.05) than the proportion in the female broilers. The interaction between the investigated effects (of sex and rearing system) did not exert a statistically significant effect on the proportions of major basic carcass parts and abdominal fat in broiler chickens (P &gt; 0.05). The rearing system (free-range and extensive indoor) and the interaction between the investigated effects (of sex and rearing system) did not affect statistically significantly the differences expressed in the meat, skin and bone proportions in breasts, drumsticks and thighs of the broilers (P &gt; 0.05). The sex effect on the skin proportions in breasts, drumsticks and thighs was not statistically significant (P &gt; 0.05). Average muscle proportions in drumsticks and thighs of the female broilers were statistically highly significantly (P &lt; 0.01) and significantly (P &lt; 0.05) higher compared to those in the male broilers. Average bone proportions in the breasts of the male broilers were statistically significantly higher (P &lt; 0.05) than those in the female ones, and statistically highly significantly higher (P &lt; 0.01) in drumsticks and thighs. &nbsp;


2010 ◽  
Vol 89 (4) ◽  
pp. 752-760 ◽  
Author(s):  
M.W. Schilling ◽  
V. Battula ◽  
R.E. Loar ◽  
V. Jackson ◽  
S. Kin ◽  
...  

2021 ◽  
Vol 8 ◽  
Author(s):  
Xiaopeng Tang ◽  
Xuguang Liu ◽  
Hu Liu

The aim of the present study was to evaluate the effects of dietary supplementation with or without Bacillus subtilis (B. subtilis) on carcass traits, meat quality, amino acids, and fatty acids of broiler chickens. In total, 160 1-day-old Arbor Acres male broiler chicks were divided into two groups with eight replicates of 10 chicks each. Chickens received basal diets without (CN group) or with 500 mg/kg B. subtilis (BS group) for 42 days. Eight chickens from each group were slaughtered at the end of the trial, and carcass traits, meat quality, chemical composition, amino acid, and fatty acid profile of meat were measured. The results showed that the breast muscle (%) was higher in BS than in CN (p &lt; 0.05), while abdominal fat decreased (p &lt; 0.05). The pH24h of thigh muscle was increased (p &lt; 0.05) when supplemented with BS; however, drip loss, cooking loss of breast muscle, and shear force of thigh muscle decreased (p &lt; 0.05). Lysine (Lys), methionine (Met), glutamic acid (Glu), and total essential amino acid (EAA) in breast muscle and Glu in thigh muscle were greater in BS than in CN (p &lt; 0.05). C16:1, C18:1n9c, and MUFA in breast muscle and thigh muscle were greater in BS than in CN (p &lt; 0.05). In conclusion, dietary supplementation with B. subtilis could improve the carcass traits and meat quality of broilers, which is beneficial for the consumers due to the improved fatty acid profile and amino acid composition.


2010 ◽  
Vol 55 (No. 11) ◽  
pp. 479-487 ◽  
Author(s):  
L. Bartoň ◽  
D. Bureš ◽  
V. Kudrna

The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (CF), Charolais (CH) and Charolais &times; Czech Fleckvieh (CH &times; CF) bulls. The animals were fed two mixed diets: MS (based on maize silage) and LCS (based on legume-cereal mixture silage and lucerne silages) with different concentrations of dietary energy and fatty acids. The MLL from CH bulls had the lowest content of dry matter (P &lt; 0.01), less protein (P &lt; 0.01) and lighter meat (P &lt; 0.01) compared to the CF. The extensive LCS diet reduced dry matter (P &lt; 0.01) and intramuscular fat (P &lt; 0.01) and increased the content of hydroxyproline (P &lt; 0.05). The CH bulls exhibited higher PUFA n-3 (P &lt; 0.05) and lower MUFA (P &lt; 0.05) compared to the CF, with the CH &times; CF being intermediate. The LCS diet enhanced the proportions of PUFA (P &lt; 0.05) and PUFA n-3 (P &lt; 0.001) and reduced MUFA (P &lt; 0.001). In conclusion, both breed and diet affected the meat quality and fatty acid profile of the intramuscular fat of the bulls. The replacement of maize silage with the legume-cereal mixture and lucerne silages in the diet reduced the concentration of intramuscular fat and improved its fatty acid profile from the human nutrition perspective.


2017 ◽  
Vol 65 (47) ◽  
pp. 10310-10316 ◽  
Author(s):  
Xiaofei Wang ◽  
Jiaolong Li ◽  
Jiahui Cong ◽  
Xiangxing Chen ◽  
Xudong Zhu ◽  
...  

2021 ◽  
Vol 23 (6) ◽  
pp. 7-10
Author(s):  
E.N. Andrianova ◽  
◽  
I.A. Yegorov ◽  
A.V. Samoylov ◽  
Ye.M. Volochayeva ◽  
...  

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