scholarly journals Effects of the replacement of corn oil with linseed oil on fatty acid composition and the expression of lipogenic genes in broiler chickens

2014 ◽  
Vol 59 (No. 8) ◽  
pp. 353-364 ◽  
Author(s):  
W. Chen ◽  
R. Zhao ◽  
B.X. Yan ◽  
J.S. Zhang ◽  
Y.Q. Huang ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Broiler Chickens ◽  
Corn Oil ◽  
Linseed Oil ◽  
Abdominal Fat ◽  
Breast Muscle ◽  
Feed Conversion ◽  
Dietary Pufa ◽  
Total N ◽  
Lipogenic Genes

The effect of dietary 18:2n-6/18:3n-3 ratio (by the replacement of corn oil with linseed oil) on n-3 polyunsaturated fatty acids (PUFA) enrichment in breast muscle of broiler chickens and the expression of lipogenic genes were investigated. Broiler chickens were fed ad libitum with diets containing 5% corn oil (CO), 3.75% corn oil + 1.25% linseed oil (CL1), 2.5% corn oil + 2.5% linseed oil (CL2), and 5% linseed oil (LO) based on the basic diets, respectively. Dietary 18:2n-6/18:3n-3 ratio did not affect 42-day body weight and 0–42-day feed conversion efficiency (feed/gain, P > 0.05) of broiler chickens, however, 5% linseed oil significantly increased 0–21-day feed conversion efficiency (feed/gain, P < 0.05) and decreased breast muscle weight (by 16%, P < 0.05) of broiler chickens. With the decrease of dietary 18:2n-6/18:3n-3 ratio, the enrichment of total n-3 PUFA, 18:3n-3, 20:5n-3, and 22:5n-3 increased linearly (P < 0.01), while the enrichment of total n-6 PUFA and 18:2n-6 decreased linearly (P < 0.01) in breast muscle of broiler chickens. Dietary corn oil increased the enrichment proportion of 20:4n-6 in a dosage-independent manner. Replacing 1.5% corn oil with linseed oil increased the enrichment proportion of 22:6n-3 (P < 0.05), but continuing to increase dietary linseed oil could not further elevate its deposition. Real-time quantitative RT-PCR was used to determine the expression of the mRNA levels of related genes. Dietary PUFA had insignificant effect on the expressions of LPIN2, WD and tetratricopeptide repeats 1 (WDTC1) and △-6 fatty acid desaturase (FADS2) in both breast muscle and abdominal fat. The effect of dietary PUFA on the expression of LPIN1 gene showed clear tissue dependence. Equivalent adding of corn oil and linseed oil could up-regulate the mRNA level of LPIN1 in abdominal fat (P < 0.01). This study demonstrated that decreasing dietary 18:2n-6/18:3n-3 ratio promoted the deposition of desirable n-3 long chain PUFA in the edible tissue and influenced the expression of LPIN1 in a tissue-dependent manner.  

scholarly journals Effect of Low Environmental Temperature on Performance and Blood System in Broiler Chickens (Gallus domesticus)

2007 ◽  
Vol 76 (8) ◽  
pp. S17-S23 ◽  
Author(s):  
J. Blahová ◽  
R. Dobšíková ◽  
E. Straková ◽  
P. Suchý
Keyword(s):  
Broiler Chickens ◽  
Environmental Temperature ◽  
Liver Weight ◽  
Abdominal Fat ◽  
Blood System ◽  
Gallus Domesticus ◽  
Heart Weight ◽  
Feed Conversion ◽  
Total Proteins ◽  
Conversion Performance

The aim of this study was to assess the effect of low environmental temperature on growth, feed conversion, performance and selected biochemical and haematological indicators in broiler chickens. The decrease in air temperature since the 22nd day of growth influenced significantly (p < 0.05) the level of total proteins, uric acid, phosphorus (in female broiler chickens), glucose (in male broiler chickens), haemoglobin (in female broiler chickens) and liver weight (in male broiler chickens). The temperature influenced significantly (p < 0.01) the level of triiodothyronine, haemoglobin (in male broiler chickens), haematocrit, abdominal fat content (in male broiler chickens), and heart weight too. The results have clearly confirmed that during growth, the decrease in environmental temperature (cold stress) negatively influenced some indices of performance and blood system in broiler chickens.

scholarly journals Betaine and Antioxidants Improve Growth Performance, Breast Muscle Development and Ameliorate Thermoregulatory Responses to Cyclic Heat Exposure in Broiler Chickens

Animals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 162 ◽  
Author(s):  
Majid Shakeri ◽  
Jeremy Cottrell ◽  
Stuart Wilkinson ◽  
Mitchell Ringuet ◽  
John Furness ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Muscle Development ◽  
Average Daily Gain ◽  
Heat Exposure ◽  
Basal Diet ◽  
Breast Muscle ◽  
Broiler Chicks ◽  
Poultry Production ◽  
Feed Conversion ◽  
Muscle Weight

Heat stress (HS) is an environmental stressor challenging poultry production and requires a strategy to cope with it. A total of 288-day-old male broiler chicks were fed with one of the following diets: basal diet, basal with betaine (BET), or with selenium and vitamin E (AOX), or with a combination of BET and AOX, under thermoneutral and cyclic HS. Results showed that HS reduced average daily feed intake (ADFI) (p = 0.01) and average daily gain (ADG) (p < 0.001), and impaired feed conversion ratio (FCR) (p = 0.03) during rearing period (0–42 day). BET increased ADG (p = 0.001) and decreased FCR (p = 0.02), whereas AOX had no effects. Breast muscle weight was decreased by HS (p < 0.001) and increased by BET (p < 0.001). Rectal temperature was increased by HS (p < 0.001) and improved by BET overall. Respiration rate was increased by HS (p < 0.001), but BET decreased it during HS (p = 0.04). Jejunum transepithelial resistance was reduced by HS and had no effect on permeability whereas BET increased jejunum permeability (p = 0.013). Overall, the reductions in ADG of broiler chickens during HS were ameliorated by supplementation with BET, with much of the increase in ADG being breast muscle.

scholarly journals The effect of using fermented lime (Citrus aurantifolia) waste powder (FLWP) on performance, lymphoid organs, and heterophil/lymphocyte ratio of broiler chickens

2021 ◽  
Vol 19 (3) ◽  
pp. 282
Author(s):  
Hanna Dzawish Shihah ◽  
Dwi Sunarti ◽  
Sri Sumarsih
Keyword(s):  
Broiler Chickens ◽  
Relative Weight ◽  
Abdominal Fat ◽  
Bursa Of Fabricius ◽  
Feed Additive ◽  
Feed Conversion ◽  
Fat Percentage ◽  
Final Body Weight ◽  
Lymphocyte Ratio ◽  
Body Resistance

<p class="MDPI17abstract"><strong>Objective: </strong>Fermented lime waste had potential value as a feed additive for poultry. A Bioactive compound such as citric acid in the lime waste can improve the broiler's performance and body resistance. The study purposed to evaluate the effect of using fermented lime waste powder (FLWP) on the broiler performance and body resistance.</p><p class="MDPI17abstract"><strong>Methods: </strong>This study used 200 female broiler strain Lohman MB 202 chickens. The research design used a completely randomized design with four treatment levels of fermented lime waste powder (FLWP) by 0%, 1%, 2%, and 3% in every rations with each treatment replicated five times. The parameters observed are feed intake, feed conversion ratio, final body weight, carcass percentage, abdominal fat percentage, lymphoid organ’s relative weight, and heterophil/lymphocyte ratio (H/L ratio). Data were calculated using the analysis of variance and difference test with Duncan's Multiple Range Test. Data analysis were calculated using the SPSS 19.0 program.<strong></strong></p><p class="MDPI17abstract"><strong>Results: </strong>The result indicates that using FLWP improved (p&lt;0.05) the relative weight of the <em>Bursa of fabricius</em> at T0 0.11%; T1 0.19%; T2 0.19%; and T3 0.17% respectively. The FLWP at 3% level improved (p&lt;0.05) broiler chicken’s H/L ratio. Performance, carcass percentage, and abdominal fat percentage among treatments were not influenced (p&gt;0.05) by FLWP addition.<strong></strong></p><p><strong>Conclusions: </strong>It concludes that adding FLWP at a 1% level increases the relative weight of <em>Bursa of fabricius</em> (0.17-0.19%) without depressed performance of broiler.</p>

scholarly journals Dietary vegetable oils inclusion on the performance, hormonal levels and hsp 70 gene expression in broilers under heat stress

2019 ◽  
Vol 42 ◽  
pp. e45517
Author(s):  
Ali Rafiei Tari ◽  
Ali Asghar Sadeghi ◽  
Seyed Naser Mousavi
Keyword(s):  
Gene Expression ◽  
Heat Stress ◽  
Olive Oil ◽  
Corn Oil ◽  
Linseed Oil ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Hsp 70 ◽  
Olive Oils ◽  
Hormonal Levels

The aim of the present study was to compare the effects of unsaturated and saturated oils on the performance, hormonal levels and hsp gene expression in broiler chickens exposed to heat stress. 300 one-day male broiler chicks were assigned to 4 treatments (Diets containing palm, corn, linseed or olive oils) with 5 replicates. At day 28 of age, 2 chickens were removed from each replicate, then blood samples and liver tissue samples were collected for analyses. Feeding linseed and olive oil reduced feed conversion ratio compared to corn and palm oils. The lowest level of insulin was for chickens fed linseed oil and corn oil. The highest level of corticosterone was found in chickens fed palm oil and the lowest level was for those received linseed oil. Chickens received linseed and corn oils had the highest levels of T3 and T4 and those fed palm and olive oils had the lowest levels. The highest HSP 70 gene expression was for chickens fed diet containing olive and linseed oils and the lowest one was for those fed corn and palm oils. It was concluded that olive oil and linseed oil could improve performance and heat tolerance of chickens under heat stress.

Dietary supplementation with L-arginine and combinations of different oil sources beneficially regulates body fat deposition, lipogenic gene expression, growth performance and carcass yield in broiler chickens

2020 ◽  
Vol 60 (11) ◽  
pp. 1409 ◽  
Author(s):  
J. Khatun ◽  
T. C. Loh ◽  
H. Akit ◽  
H. L. Foo ◽  
R. Mohamad ◽  
...  
Keyword(s):  
Gene Expression ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Abdominal Fat ◽  
Fat Deposition ◽  
Carcass Yield ◽  
Lipogenic Gene ◽  
Lipogenic Gene Expression

Context Broiler meat with excessive of fat and saturated fatty acids content has serious health implication for consumers. The accumulation of abdominal fats in broiler chickens constitutes a loss of dietary energy and also reduces carcass yield. Oil rich in unsaturated fatty acids and l-arginine are effective for reducing fat deposition and improve meat quality. Aims The aim of this study was to examine the effects of supplementation of l-arginine (l-Arg) with four combinations of palm oil (PO) and sunflower oil (SO) on growth performance, carcass yield, fat deposition, lipogenic gene expression and blood lipid profile in broiler chickens. Methods A total of 180 1-day-old chicks (Cobb 500) were randomly assigned to five dietary treatments as: T1, 6% PO (control); T2, 6% PO + 0.25% l-Arg; T3, 4% PO + 2% SO + 0.25% l-Arg; T4, 2% PO + 4% SO + 0.25% l-Arg; and T5, 6% SO + 0.25% l-Arg. Key results Birds fed l-Arg and combinations of PO and SO had higher weight gain at starter and finisher period compared with the control. The carcass yield increased, and relative abdominal fat reduced in broiler fed with combinations of l-Arg and increased level of SO in the diet. The concentration of oleic, palmitoleic and total monounsaturated fatty acids in liver tissue decreased by addition of l-Arg in broiler diet. The palmitic and total saturated fatty acid decreased, and total unsaturated fatty acid and polyunsaturated fatty acids increased in liver tissue when PO replaced progressively by SO supplemented with l-Arg in the diet. The acetyl-CoA carboxylase , stearoyl-CoA desaturase and fatty acid synthetase gene expression tended to decrease by supplementation of l-Arg with an increased level of SO compared with control. Conclusion Supplementation with l-Arg and combination of PO and SO at the ratio of 4:2 could inhibit lipogenesis and subsequent lower abdominal fat deposition and enhance growth performance and carcass yield in broiler chickens. Implications Ratio of PO and SO, 4:2 with l-Arg supplementation in the dietary of broiler chickens can contribute to a better growth performance, lesser fat deposition and greater carcass yield.

scholarly journals Pengaruh kepadatan kandang dan pembatasan ransum terhadap performans produksi dan tingkat cekaman pada Ayam Broiler

Cassowary ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 193-208
Author(s):  
Paskalis Robinson ◽  
Muh. Affan Mu’in ◽  
Irba Unggul Warsono
Keyword(s):  
Broiler Chickens ◽  
Abdominal Fat ◽  
Experimental Unit ◽  
Average Weight ◽  
Feed Conversion ◽  
Feed Cost ◽  
Randomized Design ◽  
Commercial Feed ◽  
Density Factor ◽  
Chicken Farm

This study aims to determine the interaction between cage density with dietary restrictions on ration consumption, growth, feed conversion, carcass percentage, abdominal fat, heterophile-lymphocyte ratio and broiler chicken's Income Over Feed Cost. The research lasted for 2 months in the Cage of  Broiler Chicken Farm SMK Negeri I Nabire. The research material used was 135 DOC unsex Cobb strain (CP 707) with an average weight of 42.5 grams / head; commercial feed starter BR1 CP 511 B and finisher BR2 CP 512 B and 27 units of battery cages. The experimental design used was a completely randomized design factorial pattern (3 x 3). Factor I is enclosure density with 3 levels, namely K1 (3 animals / 0.5 m2), K2 (5 animals / 0.5 m2) and K3 (7 animals / 0.5 m2) and Factor II is restriction on ration with 3 levels namely R1 (100% according to ad libitum requirements), R2 (85%) and R3 (70%) given at 4-5 weeks of age. Each treatment combination was repeated 3 times to obtain 27 experimental unit units. The results showed there was no interaction between cage density factors with dietary limitation factors for all observational variables. But the cage density factor, significantly (P <0.05) shows that the denser the cage the lower the consumption of rations and the percentage of abdominal fat in broilers. Whereas the restriction factor of the ration, significantly (P <0.05) indicates that the higher the percentage of restriction ration the lower the ration consumed and the higher Income Over Feed Cost (the greater the business income of broiler chickens obtained) despite the indication of stress in broilers with a high average heterophyll-lymphocyte (H / L) ratio of  2.44.

scholarly journals Dalgalı Aydınlatma Programının Etlik Piliçlerin Verim ve Karkas Özellikleri Üzerine Etkisi

2020 ◽  
Vol 8 (1) ◽  
pp. 230
Author(s):  
İsmail Türker ◽  
Mehmet Akif Boz ◽  
Hulusi Ozan Taşkesen ◽  
Serdar Kamanlı
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Abdominal Fat ◽  
Control Group ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Lighting Control ◽  
Dimming Control ◽  
Breast Weight

This research was conducted for 42 days, in order to determine the effects of fluctuate lighting program on production and carcass characteristics of broiler chickens. 300 day old Ross 308 chicks were used. Chicks were randomly distributed to 2 lighting groups which were normal lighting (control) and fluctuate lighting, and each group was divided in to 3 replicates containing 50 chicks. For both groups lighting was arranged as 23 hours of lighting versus 1 hour of dimming. Control group was subjected to constant lighting of 20 lux/m2 for the days 0-21, and 5 lux/m2 for the days 22-42; while in the fluctuate lighting group was subjected to lighting of 5 lux/m2 for 45 minutes and additional 20 lux/m2 for 15 minutes every hour. There were no differences of final body weight, weekly body weight gain, cumulative feed intake, cumulative feed conversion ratio, viability, foot and leg problems, hot and cool carcass weight, thigh weight, breast weight, wing weight, back weight, liver or heart weights. However, there were statistically significant differences of gizzard weight and abdominal fat weight between two groups. In conclusion, gizzard and abdominal fat weights of broilers subjected to fluctuate lighting are less than control. This suggests that fluctuate lighting can be used to lower abdominal fat which is an important problem in broilers.

Sign in / Sign up

Export Citation Format

Share Document