scholarly journals Linseed oils with different fatty acid patterns in the diet of broiler chickens

2011 ◽  
Vol 51 (No. 3) ◽  
pp. 117-121 ◽  
Author(s):  
J. Zelenka ◽  
D. Schneiderová ◽  
E. Mrkvicová
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Linseed Oil ◽  
Feed Consumption ◽  
Ether Extract ◽  
Breast Meat ◽  
Alpha Linolenic Acid ◽  
Protein Ratio ◽  
Basic Production ◽  
Fatty Acid Patterns

The effect of 1, 3, 5 or 7% of linseed oil on the performance and content of nutrients in meat was studied in an experiment with broiler chickens from 25 to 40 days of age. Oils made either of seeds of the cultivar Atalante (A; groups A1; A3; A5; A7) with a high content of α-linolenic acid or of the cultivar Lola (L) with a predominating content of linoleic acid (L1; L3; L5; L7) were used. The diets were formulated to maintain a constant energy/protein ratio. As compared with the groups receiving 1% and 3%, body weight gains were higher in the groups receiving 5% and 7% of oils in the feed mixture (P < 0.01). A lower feed consumption per unit of weight gain was also recorded in the groups with 7% and 5% of oils than in the groups receiving 1% and 3% (P < 0.01). The content of protein in breast meat in the group with 7% was lower than in the groups with 1% and 5% (P < 0.05). There were no differences in the contents of protein in thigh meat. Similarly, no differences were found out in the contents of fat in thigh and breast meat. In thigh meat, the values of ether extract were always significantly higher (P < 0.01) and those of protein content significantly lower (P < 0.01) than in breast meat. There were no significant differences in basic production parameters, breast and thigh meat percentages in body weight, and in the dry matter, ether extract and crude protein contents in meat between the groups receiving linseed oil with different levels of n-6 and n-3 polyunsaturated fatty acids.    

scholarly journals The Effect of Dietary Halloysite Supplementation on the Performance of Broiler Chickens and Broiler House Environmental Parameters

Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 2040
Author(s):  
Małgorzata Nadziakiewicz ◽  
Marcin Wojciech Lis ◽  
Piotr Micek
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Environmental Parameters ◽  
Feed Consumption ◽  
Feed Additive ◽  
Feed Conversion ◽  
Daily Body Weight ◽  
Daily Water ◽  
Broiler House

The aim of the study was to determine the effect of supplementing broiler chickens’ diets with halloysite on daily body weight gain (BWG), feed conversion ratio (FCR), daily water consumption (DWC), and some broiler house hygiene parameters. The trial was conducted on 18,000 broiler chickens divided into two groups throughout the 42-day (D) rearing period. The birds were fed complete diets without (group C) or with halloysite addition (1%, group E) from D8 of rearing. No difference in the mortality rate was observed between groups C and E. Birds from group E had a tendency (0.05 < p < 0.10) towards a higher body weight at D32 and D42, a higher BWG, and a lower FCR compared to group C during the entire rearing period. Average DWC differed only in the finisher period, with a tendency towards lower overall DWC in group E. The concentration of ammonia in the air from D21 to D35 was increased more than 5-fold in group C but only 1.5-fold in group E. In conclusion, the use of halloysite as a feed additive in the diet of broiler chickens resulted in a reduction in feed consumption per unit of BWG and higher utilisation of crude protein, which led to improved environmental conditions.

scholarly journals Optical Characterization of Alternaria spp. Contaminated Wheat Grain and Its Influence in Early Broilers Nutrition on Oxidative Stress

2021 ◽  
Vol 13 (7) ◽  
pp. 4005
Author(s):  
Nikola Puvača ◽  
Snežana Tanasković ◽  
Vojislava Bursić ◽  
Aleksandra Petrović ◽  
Jordan Merkuri ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Feed Consumption ◽  
Control Treatment ◽  
Second Phase ◽  
Wheat Grain ◽  
Color Properties ◽  
Dietary Treatments

The aim of this research was the visual characterization and investigating the effects of Alternaria spp. contaminated wheat grains in the starter stage of broilers nutrition on productive parameters and oxidative stress. The research was divided into two phases. Bunches of wheat in post-harvest period of year 2020 was collected from a various locality in Serbia and Albania. In the first phase, collected samples were visual characterized by Alternaria spp. presence by color measurement methods. Gained results are conferred in the range of the color properties of grain color properties of Alternaria toxins. Wheat grain samples were significantly different (p < 0.05) in terms of all measured color parameters (L*, a*, b*). Classification of field fungi in analyzed wheat grain samples showed that the significant field fungi were Rhizopus spp., followed by Alternaria spp., and Fusarium spp. In the second phase, biological tests with chickens were carried out during the broiler chickens’ dietary starter period in the first 14th days of age. At the beginning of the experiment, a total of 180-day-old Ross 308 strain broilers were equally distributed into three dietary treatments, with four replicates each. Dietary treatments in the experiments were as follows: basal diet without visual contamination of Alternaria spp. with 25% wheat (A1), a basal diet with visual contamination of Alternaria spp. with 25% wheat from Serbia (A2), basal diet with visual contamination of Alternaria spp. with 25% wheat from Albania (A3). The trial with chickens lasted for 14 days. After the first experimental week, wheat infected with Alternaria spp. in treatment A2 and A3 expressed adverse effects. The highest body weight of chickens of 140.40 g was recorded in broilers on control treatment A1 with statistically significant differences (p < 0.05) compared to treatments A2 (137.32 g) and A3 (135.35 g). At the end of the second week of test period, a statistically significant (p < 0.05) difference in body weight of broiler chickens could be noticed. The highest body weight of 352.68 g was recorded in control treatment A1, with statistically significant differences compared to other Alternaria spp. treatments. The lowest body weight of chickens was recorded in treatment A3 (335.93 g). Results of feed consumption and feed conversion ratio showed some numerical differences between treatments but without any statistically significant differences (p > 0.05). Alternaria spp. contaminated diet increased glutathione (GSH), glutathione reductase (GR), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) and decreased peroxidase (POD) and superoxide dismutase (SOD) serum levels, respectively. Built on the achieved results, it can be concluded that the wheat contaminated with Alternaria spp. in broilers nutrition negatively affected growth, decreased oxidative protection and interrupted chicken welfare in the first period of life.

scholarly journals Glikogen Otot Rangka Ayam Broiler (Gallus gallus) setelah Pemberian Teh Kombucha dalam Air Minum

2019 ◽  
Vol 20 (2) ◽  
pp. 78
Author(s):  
Nasrul Fathoni ◽  
M Anwar Djaelani ◽  
Sri Isdadiyanto
Keyword(s):  
Skeletal Muscle ◽  
Drinking Water ◽  
Body Weight ◽  
Green Tea ◽  
Muscle Glycogen ◽  
Broiler Chickens ◽  
Gallus Gallus ◽  
Feed Consumption ◽  
Skeletal Muscle Glycogen ◽  
Kombucha Tea

Kombucha tea beverage obtained by fermenting sweetened green tea for 12 days with Acetobacter xylinum and Saccharomyces which produce various kinds of organic acids, vitamins, and acts as a probiotic. The role of kombucha tea as a growth promoter is to that improve the metabolic process in the digestion of broiler chickens, so that nutrients can and fulfilled optimally for growth and development. The aim of this research was to analyze the sceletal muscle glycogen glycogen (Gallus gallus) after treat with kombucha tea in drinking water. Kombucha tea used is the result of fermentation of green tea for 12 days. This research used DOC chickens (Day Old Chicken) as much as 20 randomly divided into 4 treatments with concentration ie 0%, 10%, 20%, and 40% kombucha tea in drinking water for 32 days. The variables measured were skeletal muscle glycogen levels, body weight, feed consumption and drink consumption. The data obtained were analyzed using ANOVA followed by Duncan Test with 95% confidence level using SPSS 17.0 software. The results of this study showed that kombucha tea on skeletal muscle glycogen and feed consumption showed no significant difference, while on body weight and drink consumption showed significantly different results. Based on the results of the study, it can be concluded that giving kombucha tea in drinking water to a concentration of 40% has not been able to affect the skeletal muscle glycogen in broiler chickens. Key words: Kombucha tea, broiler chicken, glycogen skeletal muscle

scholarly journals Growth Performance Meat Yield and Profitability of Broiler Chickens Fed Diets Incorporating Cassava Tuber Meal

2012 ◽  
Vol 5 (1) ◽  
pp. 47-53
Author(s):  
F Sultana ◽  
MA Ali ◽  
I Jahan
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Control Diet ◽  
Live Weight ◽  
Dietary Treatment ◽  
Feed Consumption ◽  
Body Parts ◽  
Trial Period ◽  
Growth Responses ◽  
Meat Yield

A total of sixty, 14-day old broiler chickens (Cobb-500) of either sex were used in this study to assess the effects of processed cassava tuber meals (0, 15, 30, and 45 gkg-1) on growth responses, meat yield, and profitability of boilers; rearing from day 14 to day 33 of ages. The experimental diets were iso-caloric and iso-nitrogenous in nature, and were supplied the broilers ad libitum throughout the trial period. Broilers fed on control diet (i.e. exclusion of CTM) achieved higher (P<0.01) body weight, while the broilers offered diets with the highest amount (45 gkg-1) of CTM had the lowest body weight. Increased (P<0.01) feed intake was observed in the treatments of 21 d and 28 days of age when broilers fed diets with the supplementation of CTM, but no significant differences was found among the dietary treatments in the feed consumption of the broilers during 33 day of age. FCR differed significantly (P<.01) throughout the trial period, broilers fed diets without supplementation of CTM had the superior FCR than the others. Mortality was unaffected by all the dietary treatment groups. Moreover, different body parts (feather, head, neck, wing, viscera) and meat yields (thigh, drumstick, breast, back, giblet, dressing) were not influenced by treatments. Live weights were unaffected by all the dietary groups with/without incorporation of cassava tuber meals (CTM) up to day 21 and day 28 of  ages. Statistically significant (P<0.01) decreased live weight was observed among the treatments in 33-day old birds DOI: http://dx.doi.org/10.3329/jesnr.v5i1.11552 J. Environ. Sci. & Natural Resources, 5(1): 47- 53, 2012  

scholarly journals Growth performance of local and genetically improved chicken of Bangladesh

2018 ◽  
Vol 47 (2) ◽  
pp. 76-84
Author(s):  
A Akhter ◽  
SC Das ◽  
MS Hasan ◽  
T Akter ◽  
M Sultana ◽  
...  
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Growth Parameters ◽  
Live Weight ◽  
Feed Consumption ◽  
Breast Meat ◽  
Indigenous Chicken ◽  
Free Range ◽  
Growing Period ◽  
Genetically Improved

The experiment was conducted to compare the growth performance among four genotypes of indigenous chicken namely Non-descriptive Native (ND), genetically Improved Native (IN), Hilly (HC) and Naked Neck (NN) of Bangladesh under free-range rearing system.  A total of 288 day old chicks (DOC) from four genotypes were divided into four treatments having eight replications of each for a period of 12 weeks under free-range system with supplementation of commercial broiler diet. During first 4 weeks, all chicks were kept together, whereas chicks of ND was brooded in the same room but separated by a partition. At 5 weeks of age chicks were randomly distributed to the selected farmers. Growth parameters were recorded to determine the comparative growth performance among four genotypes of chicken. The highest body weight (1110.76 g/bird) was achieved by HC, followed by IN (900.63 g/bird) and NN (831.13 g/bird) at 12 weeks of age. The lowest body weight (734.13 g/bird) however was found in ND chicken. During the growing period under free range rearing (5-12 weeks), HC group consumed the highest amount of feed (2697.02 g/bird) with an average FCR of 3.06 while the lowest feed consumption (2666.13 g/bird) with the highest FCR of 4.90 was observed in ND. IN consumed (2674.63 g/bird) feed with an average FCR of 3.92 and BLRI improved NN consumed (2668.13 g/bird) feed with an average FCR of 4.19. Live weight gains in all the four genotypes of indigenous chicken were changed almost in a similar pattern. Significant differences were observed in live weight, dressing percentage, breast meat, drumstick, thigh meat among the four genotypes of chicken. The HC was superior to other genotypes of indigenous chicken including ND in terms of growth performance, meat yield characteristics and net returns. Bang. J. Anim. Sci. 2018. 47 (2):76-84

Influence of dietary energy and nutrient concentration on the growth of body weight and of carcass components of broiler chickens

1998 ◽  
Vol 131 (3) ◽  
pp. 361-371 ◽  
Author(s):  
J. WISEMAN ◽  
C. E. LEWIS
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Nutrient Concentration ◽  
Feed Conversion ◽  
Breast Meat ◽  
White Meat ◽  
Fat Depots ◽  
Leg Muscles ◽  
Dietary Nutrient ◽  
Finisher Diets

The influence of dietary nutrient concentration on performance and the growth of fat depots, breast meat and leg muscles was examined in five groups of male broiler chickens fed ad libitum with combinations of high (H), commercial (C) or low (L) energy and nutrient concentration in starter and finisher diets. Diets were changed from starter to finisher at 3 weeks of age giving 200 birds on each of five treatments: HH, HL, CC, LH and LL. Ten birds per treatment were slaughtered at weekly intervals from 0 to 70 days. Five of these were dissected into component lean tissues of breast muscles (white meat) and thigh+leg muscles (dark meat) and fat depots, and the other five carcasses were minced for chemical analyses. Data were analysed by fitting Gompertz functions to each component.Analysis of body weight, carcass components and feed intake revealed that at 70 days birds on LH approached similar liveweights to those on HH with lower overall food intakes, comparable feed conversion ratios but slightly greater fat depots. The HL birds had less fat but achieved specific weights over longer periods of time with greater feed intakes and poorer feed conversion ratios. Content of white and dark meat was always greater in HH birds, with differences between treatments being greater for white meat.Decisions on which conditions are most appropriate will be influenced by time taken to reach specific liveweights if whole birds are marketed, or the rate of growth of individual portions if further processing is considered, together with feed conversion efficiency and the relative costs of diets varying in energy and nutrient concentration.

PREDICTION OF FAT-TO-PROTEIN RATIO IN LAMB CARCASSES

1964 ◽  
Vol 44 (1) ◽  
pp. 102-105 ◽  
Author(s):  
W. A. Jordan ◽  
G. I. Pritchard ◽  
D. P. Heaney ◽  
H. F. Jeffers
Keyword(s):  
Body Weight ◽  
Practical Importance ◽  
Carcass Weight ◽  
Ether Extract ◽  
Positive Relationships ◽  
Prediction Equations ◽  
Body Proportions ◽  
Leg Length ◽  
Protein Ratio ◽  
Scientific Investigations

A study of relationships between weights or simple measures of body proportions and fat-to-protein ratio in lamb carcasses (ether extract-to-N × 6.25 in completely ground carcass side) showed several positive relationships of practical importance. Width of carcass at shoulders was the most useful criterion (r = 0.68) for predicting fat-to-protein ratio, followed by carcass weight, body weight, heart girth, and carcass depth with r values of 0.64, 0.60, 0.58, and 0.52 respectively. While these relationships lead to prediction equations that are not sufficiently precise for most scientific investigations, they are sufficiently high to warrant consideration when assessing the value of such measurements in carcass evaluation and in selection. Leg length, carcass length, and carcass width at hips had lower relationships to fat-to-protein ratio in carcasses, which were of doubtful value even for practical purposes. Area of eye of lean showed no relationship to fat-to-protein ratio.

scholarly journals Effect of Lactococcus lactis vs. Lactobacillus spp. bacteria on chicken body weight, mortality, feed conversion and carcass quality

2012 ◽  
Vol 12 (4) ◽  
pp. 549-559 ◽  
Author(s):  
Franciszek Brzóska ◽  
Bogdan Śliwiński ◽  
Krystyna Stecka
Keyword(s):  
Body Weight ◽  
Lactobacillus Plantarum ◽  
Lactococcus Lactis ◽  
Broiler Chickens ◽  
Liver Weight ◽  
Blood Parameters ◽  
Feed Consumption ◽  
Control Group ◽  
Feed Conversion ◽  
Dressing Percentage

AbstractA total of 608 Ross 308 broiler chickens of both sexes were studied to determine the effect of Lactococcus lactis 847 bacteria compared to probiotic bacteria Lactobacillus delbruecki 838 and Lactobacillus plantarum 837 on body weight, feed consumption and conversion, mortality, dressing percentage, postmortem carcass traits, composition of breast muscle tissue, and blood plasma traits. Feeding diets with bacteria to chickens did not increase body weight at 42 days of age or improve feed conversion compared to control chickens. It significantly reduced chicken mortality compared to the control group, from 3.3% to 1.4% (P<0.01). No significant differences were found in feed consumption and conversion. There were no significant differences in the weight of carcasses and their parts. Lactococcus lactis 847 and Lactobacillus plantarum 837 bacteria significantly increased dressing percentage (P<0.05). Lactococcus lactis 847 significantly increased liver weight (P<0.05). No significant differences were observed in carcass fatness, and in the dry matter, protein and fat content of breast muscles. Feeding diet with Lactobacillus plantarum 837 to chickens significantly decreased plasma triglyceride levels, and feeding diet with Lactobacillus delbruecki 838 and Lactobacillus plantarum 837 significantly decreased the level of high-density cholesterol (P<0.05). In conclusion, Lactococcus lactis 847 bacteria in diet significantly reduce losses due to digestive disorders while having no effect on the quantity and proportion of saleable cuts in the carcass, the composition of breast muscles and basic blood parameters.

scholarly journals Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers

2013 ◽  
Vol 61 (5) ◽  
pp. 1513-1520 ◽  
Author(s):  
Jiří Zelenka ◽  
Jaroslav Heger ◽  
Vlastislav Machander ◽  
Markus Wiltafsky ◽  
Martin Lešták
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Free Acid ◽  
Basal Diet ◽  
Relative Bioavailability ◽  
Feed Conversion ◽  
Breast Meat ◽  
Meat Yield ◽  
Carcass Yield ◽  
Breast Meat Yield

An experiment with broiler chickens was conducted to compare the relative bioavailability of liquid methionine hydroxy analogue free acid (MHA-FA) with that of DL-methionine (DLM) during fattening to 35 days of age. Ross 308 male chicks were allotted to 9 treatments, each consisting of six replicates of 140 birds/pen. Four graded levels (0.04, 0.08, 0.16, and 0.28 %) of MHA-FA or DLM products (weight/weight comparison) were added to a maize-wheat-soyabean meal basal diet deficient in sulphur amino acids. The criteria of response were body weight, feed conversion ratio, carcass yield and breast meat yield. Significant responses to graded levels of both methionine sources were observed in all response criteria. Using a multi-exponential model describing the dose-response relationships, the bioavailability estimates of MHA-FA relative to DLM on a weight-to-weight basis were 68, 70, 54 and 59 % for body weight, feed conversion, carcass yield and breast meat yield, respectively. If MHA-FA was compared with DLM on equimolar basis its bioavailability was 77.7, 79.0, 59.3 and 64.6 for body weight, feed conversion, carcass yield and breast meat yield, respectively. The bioavailability of MHA-FA for carcass yield and breast meat yield was significantly (P < 0.05) lower than that of DLM on a weight-to-weight and on equimolar basis.

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