EFFECTS ON BODY WEIGHT AND FEED CONVERSION OF BROILER CHICKENS FROM THREE COMMERCIAL CROSSES REARED WITH THE SEXES SEPARATED OR INTERMINGLED

1969 ◽  
Vol 49 (1) ◽  
pp. 23-28 ◽  
Author(s):  
W. F. Lamoreux ◽  
F. G. Proudfoot
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Single Strain ◽  
Body Weights ◽  
Type Strains ◽  
Meat Type

Two tests, each including 1,728 sexed broiler chicks, were conducted with the sexes both intermingled and separated. The chicks, progeny of three commercial meat-type strains of hens mated to a single strain of males, were hatched in the same incubators on the same day and reared in 48 pens in a windowless house.Results to nine weeks of age revealed no significant effects of rearing the sexes separately or intermingled, on body weight, feed conversion or uniformity of body weights.

scholarly journals Growth Performance, Serum Biochemical Indices, Duodenal Histomorphology, and Cecal Microbiota of Broiler Chickens Fed on Diets Supplemented with Cinnamon Bark Powder at Prestarter and Starter Phases

Animals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 94
Author(s):  
Mohammed M. Qaid ◽  
Saud I. Al-Mufarrej ◽  
Mahmoud M. Azzam ◽  
Maged A. Al-Garadi ◽  
Hani H. Albaadani ◽  
...  
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Basal Diet ◽  
Positive Control ◽  
Negative Control ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Serum Globulin ◽  
Maximum Improvement

Ross 308 broiler chicks (n = 240) aged 1 day were assigned to five groups for eight replicates (six chicks for each) (3♂ and 3♀). Basal dietary groups were supplemented by 2000, 4000, and 6000 mg/kg cinnamon (CN) for 21 days. Basal diet alone was used as a negative control, and basal antibiotic diet (Colimox) was used as a positive control. At 10, 14, and 21 days of age, chicks that received 2000 mg CN and Colimox had a higher body weight, resulting in an increase in body weight gain. CN also resulted in the maximum improvement in the feed conversion ratio and feed efficiency over 1–21 days at the level of 2000 mg/kg. At days 10, the maximum relative breast weight was 2000 mg/kg of CN. Mean serum albumin concentrations, duodenal villus height, and goblet cell density increased (p < 0.05) by 2000 mg/kg of CN, and mean serum globulin and total protein concentrations and crypt depth increased (p < 0.05) by 6000 mg/kg of CN compared with control. Increased cecal Escherichia coli number was CN dose-dependent. In conclusion, dietary inclusion of 2000 mg/kg CN can be applied as an alternative to in-feed antibiotics for broiler starter diet.

scholarly journals Aplikasi Teknologi Nanopartikel Perak (AgNPs) dalam Air Minum dan Bentuk Kabut terhadap Kadar Amonia Ekskreta Broiler

2019 ◽  
Vol 17 (2) ◽  
pp. 26-31
Author(s):  
Ones Putra Hulu ◽  
M Sihombing ◽  
R H Saputro ◽  
A Darmawan ◽  
Y Herbani
Keyword(s):  
Drinking Water ◽  
Body Weight ◽  
Weight Gain ◽  
Relative Humidity ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Ammonia Content

The purpose this study was evaluate the utilization of nanoparticles silver (AgNPs) on performance and ammonia concentration in broiler excreta.  This study used a factorial completely randomized design with 3x2 treatments and 4 replicates.  First factor (AgNPs at drinking water) was P1 = 0 ppm, P2 = 2 ppm, and P3 = 3 ppm and the  second factor Q (AgNPs by misty) was Q1 = 0 ppm and Q2 = 4 ppm.  The variables measured were excreta ammonia content, feed consumption, body weight gain, feed conversion ratio, mortality, temperature and relative humidity.  The results  showed that there was no interaction between AgNPs in drinking water and AgNPs in  its mist form on ammonia content.  AgNPs 4 ppm by misty also affected reduce FCR and body weight gain at week 3, also increased FCR at fourth week.  AgNPs in drinking water affected (P < 0.05) amonia content.  AgNPs 2 ppm in drinking water reduce until 11% amonia content.  AgNPs by misty also reduced (P< 0.05) amonia content.  AgNPs 0 ppm and 4 ppm by misty not created comfort temperature and relative humidity for broiler chicks. It is concluded that the addition of silver nanoparticles reduce excreta ammonia levels of broiler chickens.

Effect of dietary supplementation of vitamin E, zinc, and chromium supplementation on growth performance and hematological characteristics of broiler chickens

2017 ◽  
Author(s):  
Nazim Ali ◽  
Mohammad Akram ◽  
Ahmad Fahim ◽  
Balvir Singh ◽  
Mohammad Imran
Keyword(s):  
Body Weight ◽  
Vitamin E ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
White Blood Cells ◽  
The Body ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Wood Shavings

The study investigated the effect of supplementation of Vitamin E, Zn and Cr on growth performance and hematological characteristics of broiler chickens. The 240 day old Cobb 400 chicks were randomly distributed in eight groups consisting of 30 chicks in each. These chicks were kept on deep litter houses comprising of wood shavings. The supplementation of Vitamin E, zinc and chromium either individually or in combination improved the feed conversion ratio and body weight gain in broiler chicks. The body weight of broiler chickens at different age from day old to the 6th week were significantly different among treatments. The highest body weight was recorded in T8 groups. Heamoglobin, red blood corpuscles and white blood cells levels increased whereas heterophil: lymphocyte ratio statistically decreased with vitamin E, zinc or chromium supplemented groups either individually or in combinations.

scholarly journals Phytogenic additive as an alternative to growth promoters in broiler chickens

2009 ◽  
Vol 39 (2) ◽  
pp. 522-527 ◽  
Author(s):  
Gerson Neudí Scheuermann ◽  
Anildo Cunha Junior ◽  
Lucas Cypriano ◽  
Alexandre Mossate Gabbi
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Positive Control ◽  
Negative Control ◽  
Feed Additive ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Growth Promoters ◽  
The Cost

This study evaluated a phytogenic feed additive for broiler chickens. A total of 1,632 broiler chicks were distributed into four treatments: negative control (without growth promoter); positive control (avilamycine, 10ppm + colistin, 15ppm); and two alternative treatments with 150ppm of phytogenic additive, one with a reduced Ca and P levels diet (PA-R1) and the other with lower energy, and amino acids, besides Ca and P (PA-R2). The trial was conducted with 12 replicates, each consisted of a pen with 34 birds. The alternative diets showed body weight intermediate to the two controls at 42 days, with no significant (P>0.05) treatment effect on feed conversion ratio. No treatment differences (P>0.05) on carcass yield and composition was observed. There was a tendency of abdominal fat lipids saturation, when the phytogenic additive was used, as possible consequence of a decreased level of soybean oil in the diets. A difference (P<0.001) on ingredient consumption profile was observed between the treatments. All together, this study showed a possibility to reduce the cost of total feed used to produce a broilers or a ton of body weight by the utilization of the tested phytogenic additive.

scholarly journals Arsanilic acid as a growth promoter for chicken broilers when administered via either the feed or drinking water

1991 ◽  
Vol 71 (1) ◽  
pp. 221-226 ◽  
Author(s):  
F. G. Proudfoot ◽  
E. D. Jackson ◽  
H. W. Hulan ◽  
C. D. C. Salisbury
Keyword(s):  
Drinking Water ◽  
Broiler Chickens ◽  
Economic Effects ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Acid Growth ◽  
Arsanilic Acid ◽  
Body Weights ◽  
Slaughter Age

Two thousand four hundred male broiler chicks were used in three experiments to evaluate the biological and economic effects of using arsanilic acid as a growth promoter. In two experiments four treatments were (A) control diets (CD); (B) CD plus 99 mg kg−1 arsanilic acid; (C) CD plus drinking water containing arsanilic acid calculated to achieve equivalent exposure to treatment B; and (D) same as treatment C except arsanilic acid concentration reduced by 50%. A third experiment evaluated the dietary addition of arsanilic acid at 0, 33, 66 and 99 mg kg−1. Arsanilic acid supplementation had no significant (P > 0.05) effect on mortality, feed conversion, final live body weights or monetary returns at slaughter age (42 d). Analysis of breast, thigh and liver tissues using method with a sensitivity of 0.02 mg kg−1 showed a significant increase in liver arsenic residues when supplemented diets were fed to slaughter age. Withdrawal of arsanilic acid from diets 7 d prior to slaughter returned the arsenic residues to normal background (control) levels. It is concluded that the use of arsanilic acid at dietary concentrations up to 99 mg kg−1 (the maximum permissible in Canada) was ineffective in improving either the biological or economic performance of broiler chickens. Key words: Arsanilic acid, growth promoter, broiler chickens

Evaluation of turmeric extract on performance indices impressed by induced aflatoxicosis in broiler chickens

2011 ◽  
Vol 27 (10) ◽  
pp. 956-960 ◽  
Author(s):  
Nader Rangsaz ◽  
Majid Gholami Ahangaran
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Curcuma Longa ◽  
Basal Diet ◽  
Control Group ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Performance Indices ◽  
Turmeric Extract

The purpose of this study was evaluation of ethanolic turmeric extract (ETE; Curcuma longa) effect on overall performance including body weight (BW), body weight gain (BWG), feed intake and feed conversion ratio (FCR) weekly and cumulative for a period of 4 weeks with 300 commercial broiler chicks (Ross strain). These chicks were randomly divided into four groups with three replicates of 15 chicks in each replicate. In group A, chickens were fed a basal diet, in group B, chickens were fed a basal diet plus 3 ppm productive aflatoxin. In group C, chickens consumed a basal diet plus 0.05% ETE and in group D, chickens received a basal diet with 0.05% ETE plus 3 ppm productive aflatoxin. Aflatoxin production by Aspergillus parasiticus (PTTC NO:1850) in maize was according to the Shotwell method. The results revealed that there were no significant differences in BW, BWG and FCR between groups fed turmeric at 0.05% and the control group. The supplement of ETE in a diet containing 3 ppm aflatoxin can significantly improve performance indices compared with the group that consumed aflatoxin alone. In conclusion, our results suggest that turmeric extract ( Curcuma longa) can provide protection against the negative effects of aflatoxin on performance of broiler chickens.

scholarly journals THE RESPONSE OF MALE BROILER CHICKS TO THE CONSUMPTION OF LOW LEVELS OF CHLORTETRACYCLINE AS A GROWTH PROMOTER

1988 ◽  
Vol 68 (4) ◽  
pp. 1285-1290
Author(s):  
F. G. PROUDFOOT ◽  
H. W. HULAN ◽  
E. D. JACKSON
Keyword(s):  
Broiler Chickens ◽  
Broiler Chicken ◽  
Divalent Cations ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Feed Supplementation ◽  
Body Weights ◽  
Low Levels ◽  
Conversion Efficiencies

Three thousand two hundred male broiler chickens were used to evaluate the efficacy of chlortetracycline (CTC) as a growth promoter when used in compliance with the present maximum feed-supplementation rate permitted in Canada (5.5 mg kg−1). No significant (P > 0.05) improvements in 21- and 42-d live body weights or feed conversion efficiencies were observed, regardless of the method of administration (feed or water). Changes to the sources of dietary calcium and phosphorus in an attempt to circumvent antibiotic inactivation by divalent cations also failed to potentiate any effect of this level of CTC. It is suggested that, if adequate attention is paid to the diet and health of broiler stocks, no further gains will be realized through feed supplementation with 5.5 mg kg−1 CTC. Key words: Diets, antibiotics, aureomycin, chlortetracycline, broiler chicken

scholarly journals Effects of peripheral administration of ghrelin antagonist [D-Lys<sup>3</sup>]-GHRP-6 on growth performance and blood biochemical indices in broiler chickens

2016 ◽  
Vol 59 (1) ◽  
pp. 113-119 ◽  
Author(s):  
Habib Aghdam Shahryar ◽  
Alireza Lotfi
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Mammalian Species ◽  
Broiler Chicks ◽  
Post Injection ◽  
Feed Conversion ◽  
Blood Samples ◽  
Blood Biochemical ◽  
Significant Difference

Abstract. In the present study, possible effects of peripheral administration of ghrelin antagonist [D-Lys3]-GHRP-6 on chicken performance, thyroid hormones level and serum biochemical parameters were investigated. Broiler chicks divided into five experimental groups were reared up to day 42. On day 21, a treatment was assigned to the five groups: group 1 (control), chickens without any administration of peptide or solution; group 2 (G50), chickens with intraperitoneal (IP) injection of 50 ng per 100 g body weight (BW) of D-Lys3 peptide on day 21; group 3 (G100), chickens with IP injection of 100 ng per 100 g BW of D-Lys3 peptide on day 21; group 4 (G150), chickens with IP injection of 150 ng per 100 g BW of D-Lys3 peptide on day 21; and group 5 (G200), chickens with IP injection of 200 ng per 100 g BW of D-Lys3 peptide on day 21. On days 21 (post-injection) and 42 (post-rearing), blood samples were obtained from the animals for laboratory analyses. Experimental groups administered the GHS-R antagonist showed less feed intake – i.e., administration of greater doses led to less feed intake (P < 0.01). Daily weight gains within groups G150 and G200 decreased (P < 0.01) in comparison with the control. The feed conversion ratio (FCR) did not differ among the groups. There was a significant difference between control and experimental groups for glucose, total cholesterol and phosphorus levels (P < 0.01) in post-injection samples. In post-injection and post-rearing blood samples, the thyroid hormone (T3 and T4) in 6 h increased in treated groups in comparison with the control (P < 0.01). The infusion of ghrelin antagonist [D-Lys3]-GHRP-6 reduces feed intake and body weight. With regard to increase in T4 level, it can be inferred that [D-Lys3]-GHRP-6 may increase metabolic rate, lipolysis and weight loss, which is similar to results obtained in mammalian species.

scholarly journals PENGARUH TINGKAT PEMBATASAN PEMBERIAN PAKAN (Restricted Feeding) TERHADAP PERFORMAN AYAM BROILER JANTAN

2017 ◽  
Vol 14 (1) ◽  
pp. 43
Author(s):  
Hatifah Aprilia Kusuma ◽  
Ashry Mukhtar ◽  
Ratih Dewanti
Keyword(s):  
Body Weight ◽  
Feed Efficiency ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Feed Consumption ◽  
Restricted Feeding ◽  
Feed Conversion ◽  
Feed Cost ◽  
Randomized Design ◽  
Body Weights

<p><em>This study aims to determine the effect of restricted feeding </em><em>rate on</em><em> the broiler chickens performance. The research was carried out in Tompe, Jirapan Village, Masaran Sub District, Sragen Distric for six weeks beginning from September 14<sup>th</sup> until October 26<sup>th</sup>, 2011. This study used 100 male broiler chickens New Lohmann strain. The </em><em>research design</em><em> used Complet</em><em>ely</em><em> Randomized Design (CRD) </em><em>one way trafic </em><em>with four treatments. The fourth treatment</em><em>s</em><em> are</em><em>:</em><em> P0 (full  feeding without fasting), P1 (6 days full </em><em>feeding </em><em>and 1 day fasting), P2 (5 days full feeding and 1 day fasting) and P3 (4 days full feed</em><em>ing </em><em>and 1 day fasting). Each treatment </em><em>consisted of</em><em> five replicates. Feed consisted of BR1 and BR2. </em><em>The Parameters o</em><em>bservedare Body Weights</em><em> Gain</em><em>, Feed Consumption, Feed Conversion,and Income Over Feed Cost. The results showed that the average of four treatment are P0, P1, P2 and P3 respectively for body weight gain </em><em>are</em><em> 81</em><em>.</em><em>37; 74</em><em>.</em><em>47; 72</em><em>.</em><em>65, and 72</em><em>.</em><em>50 grams / head / day, feed intake </em><em>are </em><em>137</em><em>.</em><em>94; 126</em><em>.</em><em>46; 124</em><em>.</em><em>06</em><em>;</em><em> and 119</em><em>.</em><em>11 g / head / day, feed conversion </em><em>are</em><em> 1.70</em><em>;</em><em> 1.70</em><em>;</em><em> 1.71, and 1.64, feed efficiency </em><em>are</em><em> 0.59; 0, 59; 0.59, and 0,61. The average of Income Over Feed Cost </em><em>are </em><em>Rp. 8.757,26; Rp. 8.014,98;Rp. 7.818,14</em><em>; </em><em>and Rp. 7.808,57. The analysis of variance</em><em> results</em><em> for body weight </em><em>gain and whole consumption</em><em> has significant effect (P&lt;0.01), conversionwas not </em><em>affected</em><em>. From these results it can be concluded that the rate of feeding restri</em><em>cteds is</em><em> significantly affect</em><em> on</em><em> body weight </em><em>gain and feed consumption</em><em> of Broiler </em><em>Males</em><em>. </em></p>

PERFORMANCE OF BROILER CHICKS FED TWO DIETARY PROTEIN LEVELS (18 AND 22%), TWO NEEPAWA WHEATS (14.5 AND 21.0% PROTEIN), AND SIX L-LYSINE LEVELS

1976 ◽  
Vol 56 (4) ◽  
pp. 769-773
Author(s):  
E. E. GARDINER ◽  
S. DUBETZ
Keyword(s):  
Body Weight ◽  
Dietary Protein ◽  
The Body ◽  
Broiler Chicks ◽  
Maximal Growth ◽  
Feed Conversion ◽  
Protein Levels ◽  
Body Weights ◽  
Supplemental Protein ◽  
Protein Diets

Day-old male broiler chicks were fed 14.5 and 21.0% protein Neepawa wheats as ingredients in broiler diets to 4 wk of age. Two levels of dietary protein (18 and 22%) and six levels of added L-lysine HCl (L-lysine) (0.0, 0.06, 0.12, 0.18, 0.24, and 0.30%) were used with each wheat. The desired dietary protein contents were obtained by varying the proportions of the wheats and soybean meal. Body weights and feed-to-gain ratios were significantly affected by the three variables. Within the 18% protein diets, the diet containing 14.5% protein wheat and supplemented with at least 0.18% L-lysine gave maximal growth and most efficient feed conversion. Maximal growth was not obtained on any of the 18% protein diets with 21.0% protein wheat, regardless of L-lysine supplementation. With the 22% protein diets, L-lysine supplementation up to 0.24% of the diet improved the body weight and feed conversions of the chicks when the diet contained 21.0% protein wheat, and generally the results were not different from those obtained when the diet contained the 14.5% protein wheat. L-lysine supplementation of the 22% protein diet containing the 14.5% protein wheat did not significantly affect growth or feed conversion. High-protein wheat supplemented with adequate L-lysine can be fed to chicks and thereby substantially reduce the amount of supplemental protein required.

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