INTERACTION OF STRAIN, DENSITY AND RATION WITH TWO LIGHT SYSTEMS ON BROILER PERFORMANCE

1971 ◽  
Vol 51 (3) ◽  
pp. 613-619 ◽  
Author(s):  
R. B. BUCKLAND ◽  
H. C. GASPERDONE ◽  
D. B. BRAGG
Keyword(s):  
Body Weight ◽  
Feed Efficiency ◽  
Continuous Light ◽  
Light Treatment ◽  
Broiler Performance ◽  
Intermittent Light ◽  
Floor Space ◽  
Bird Density ◽  
Average Body ◽  
Average Body Weight

Two experiments were conducted to determine the effect of continuous and intermittent (1 hr on and 3 hr off) light treatments and the influence of strain, density and ration on performance of broilers maintained on each light treatment. Three thousand and six hundred broilers of two strains were grown with 0.093 m2 and 0.047 m2 of floor space per bird in experiment 1. Three thousand broilers from one strain were grown with 0.093 m2 of floor space per bird in experiment 2; 600 birds were fed each of five test rations. Body weight, mortality and feed efficiency were calculated in both experiments and slaughter grade was determined in experiment 1. Birds grown on intermittent light had lower mortality and better feed efficiency than those on continuous light. Average body weight at 7 weeks of age was not significantly different for the two light treatments; however, significant interactions were observed for strain × light, density × light and ration × light. Light treatments did not affect the percentage of grade A carcasses at slaughter. Strain and ration had a significant effect on 7-week body weight, as did bird density, in that birds maintained at 0.093 m2 were heavier and had a higher percentage of grade A carcasses than birds at 0.047 m2.

scholarly journals The Effects of Feed Color on Broiler Performance between Day 1 and 21

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1511
Author(s):  
Joseph P. Gulizia ◽  
Kevin M. Downs
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Treatment Effects ◽  
Body Weight Gain ◽  
Experimental Period ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Average Body ◽  
Average Body Weight

Two trials were conducted to determine feed color effects on broiler performance. A completely randomized design was used. Trial 1 included four treatments: control (complete broiler starter diet), red, green, and blue; and Trial 2 included four treatments: control, orange, yellow, and purple. Each trial had 4 treatments with 4 replicates (60 birds/treatment) fed to 240 male Cobb 500 broilers during a 21 d grow out. Data were analyzed using the GLM procedure. In Trial 1, there were no treatment effects on average body weight, body weight gain, and feed consumption (p > 0.05). Adjusted feed conversion for control (1.23) was less than red (1.27; p = 0.001) and green (1.26; p = 0.009), with blue (1.25; p = 0.056) tending to be different during the experimental period. In Trial 2, there were no treatment effects on average body weight, feed consumption, and adjusted feed conversion during this study (p > 0.05). Body weight gain between d 1 to 14 for purple (490.78 g/bird) was more than orange (467 g/bird; p = 0.013) and yellow (461 g/bird; p= 0.004), with control (474 g/bird; p = 0.052) tending to be different. Results indicate that these feed colors had some, albeit limited, influence on broiler performance parameters.

RESPONSE OF BROILERS TO VARIATIONS IN WATERER, FEEDER, AND FLOOR SPACE UNDER CONTINUOUS AND INTERMITTENT PHOTOPERIODS

1973 ◽  
Vol 53 (2) ◽  
pp. 349-354 ◽  
Author(s):  
F. G. PROUDFOOT
Keyword(s):  
Body Weight ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Broiler Performance ◽  
Floor Space ◽  
Bird Density ◽  
Feeder Spaces ◽  
Space Effects ◽  
Feeder Space

The effects on broiler performance of different floor, waterer, and feeder spaces and light treatments were estimated. Increased bird density resulted in a reduction in body weight, poorer feed conversion, reduced carcass quality and a reduction in monetary returns per bird started. Feeder space effects were inconsistent. Waterer spaces examined had little effect on bird performance. Light treatments studied revealed that cycles of 1 h of light with 3 h of darkness resulted in slightly superior feed conversion compared with cycles of 3 h of light and 1 h of darkness.

scholarly journals PENGARUH PEMBERIAN TEPUNG CACING TANAH (Lumbricus sp.) SEBAGAI ATRAKTAN DALAM PAKAN TERHADAP TINGKAT KONSUMSI PAKAN, EFISIENSI PAKAN DAN PERTUMBUHAN IKAN PATIN (Pangasius sp.)

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Rizkiana Amalia ◽  
Sri Hastuti ◽  
Agung Sudaryono
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Survival Rate ◽  
Feed Efficiency ◽  
Food Preference ◽  
Preference Test ◽  
Quality Parameters ◽  
Feed Consumption ◽  
Average Body ◽  
Average Body Weight

Catfish (Pangasius sp.) is a dominant consumption fish and it is targeted that production will be increase every year. Catfish have a low feed efficiency value which is causes the growth of catfish to be less optimal, so it is necessary to add ingredient into the diets so that the fish are interested in eating the diets given. The use of earthworm meal as an attractant was expected to increase of feed consumption, feed efficiency and growth of catfish. This experiment aimed to study the effect of dietary earthworm meal as an attractant on feed consumption level, feed efficiency and growth of catfish (Pangasius sp.). The catfish used with an initial average body weight of 6,78±0,68 g/fish. The fishes were cultured in the aquarium for 42 days with the stocking dencity of 1 fish/2L. The experimental method used was completely randomize design (RCD) with 4 treatments and 3 replicates.  The treatments were addition of earthworm meal (Lumbricus sp.) as an attractant with a dose of 0%, 5%, 10% and 15% in the diets. The data showed that  the use of earthworm meal (Lumbricus sp.) inclusion in the diets resulted in significant effects (P <0,05) on feed consumption  (159,73 g), FE (81.06%), PER (2,31%), G (9,76 g) and SGR (1,97%/day) but not significant effect (P>0,05) on survival rate (84.44-93,33%). The best food preference test in treatment C dose 10% of earthworm meal with percentage 44% fish approaching diets. The water quality parameters during this study varied between suitable range for the catfish (Pangasius sp.) life, i.e temperatures 27,70-30,900C; pH 7,00; DO 5,37-5,52 mg/L and NH3 0,0036-0,0095 mg/L. It was concluded  that catfish (Pangasius sp.) fed with the diet containing 10% attractants of earthworm meal resulted in better feed consumption, feed efficiency and growth. 

scholarly journals The Effect of Non-Circadian Photoperiod on Growth and Puberty Onset of Brook Trout Salvelinus fontinalis Mitchill

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 692
Author(s):  
Katsiaryna Lundova ◽  
Jan Matousek ◽  
Vlastimil Stejskal
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
Somatic Growth ◽  
Continuous Light ◽  
Control Group ◽  
Sexually Mature ◽  
Average Body ◽  
Average Body Weight

The aim of the present study was to assess the effects of a prolonged photoperiod on growth rate and sexual maturation in brook trout Salvelinus fontinalis. The task of the experiment was to determine the most effective light regimen capable to minimizing the effects of puberty, including impairment of somatic growth and further general characteristics. In this regard, the studied fish were reared under three photoperiod regimens in which fish were exposed to 24 h continuous light alternating with 24 or 48 h under the ambient photoperiod or 48 h continuous light alternating with a 24 h ambient photoperiod. A control group was reared under the natural ambient photoperiod. Four-hundred and fifty fish with an average initial body weight of 101.3 ± 1.2 g were used for each experimental group (three replicates of each treatment plus control). A statistically lower growth rate showed control groups in both sexes. At the end of the study, control males had an average body weight of 226.6 ± 39.8 g and control females a body weight of 199.8 ± 12.2 g. At the same period, a significantly higher average body weight was found in groups reared 24 h under ambient photoperiod alternating with a 48 h continuous light regime (2CP:1AP) in both sexes (296.56 ± 62.5 g—males, and 239.9 ± 19.2 g—females, respectively). A significantly higher percentage of sexually mature fish was observed in the control group (80% of males and 29% of females, respectively). We found significantly fewer sexually mature females compared to males. The lowest survival was observed in group 2CP:1AP at 92%. It was concluded that regimen under which fish was exposed to 48 h of natural ambient photoperiod alternating with 24 h of constant light (1CP:2AP) lead to the successful delay of gonad development and onset of puberty and increased somatic growth in both sexes.

scholarly journals PENGARUH PENGGANTIAN SEBAGIAN RANSUM DENGAN TEPUNG LIMBAH LABU KUNING (Cucurbita moschata) TERHADAP PERFORMANS AYAM PEDAGING

ZOOTEC ◽  
2019 ◽  
Vol 39 (2) ◽  
pp. 345
Author(s):  
Julin Salauhiang ◽  
Marie Najoan ◽  
Cherly J. Pontoh ◽  
Meity R. Imbar
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Partial Replacement ◽  
Cucurbita Moschata ◽  
Broiler Performance ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Average Body ◽  
Basal Ration ◽  
Average Body Weight

EFFECT OF REPLACEMENT SOME RATIONS WITH FLOUR YELLOW PUMPKIN WASTE (CUCURBITA MOSCHATA) AGAINST PERFORMANCE BROILER. This study aims to determine   the extent of the partial replacement of rations with pumpkin waste flour (Cucurbita moschata) as measured by broiler performance. Using 100 unsexed broiler Cobb 707 aged 1 day with average body weight ± 45.32 g. The design used was a Completely Randomized Design (CRD) consisting of 4 treatments and 5 replications. The treatment composition is as follows: R0 = 100% basal ration (RB) + 0% pumpkin waste flour (TLLK), R1 = 95% RB + 5% TLLK, R2 = 90% RB + 10% TLLK, R3 = 85% RB + 15% TLLK.  Results of analysis of variance showed that the dissecting treatment was not significant (P>0.05) for the consumption, weight and conversion of ration The use of pumpkin waste flour can replace a portion of the ration up to 15%.Key words: Performance, waste pumpkin, broiler.

Finishing steers on sorghum grain and sorghum silage. Effects of grain-to-roughage ratio, urea supplementation and hexoestrol implantation on rate of body-weight gain, feed efficiency and carcass compositions

1966 ◽  
Vol 67 (2) ◽  
pp. 191-197 ◽  
Author(s):  
J. G. Morris
Keyword(s):  
Body Composition ◽  
Body Weight ◽  
Weight Gain ◽  
Feed Efficiency ◽  
Body Weight Gain ◽  
Finishing Steers ◽  
Sorghum Silage ◽  
Sorghum Grain ◽  
Average Body ◽  
Average Body Weight

1. A study of the suitability of rations of predominately sorghum grain for the intensive finishing of steers is reported. Six groups, each of ten steers, 18 months old and of an average body-weight of 544 lb., were fed, according to a set schedule, increasing quantities of grain in the ration until two groups were each consuming rations containing 80, 90 or 100% grain. One of the two groups, fed each grain-to-roughage ratio, received 60 g. urea per head daily. Individual steers were slaughtered when they attained 900 lb. body-weight. A seventh group of ten comparable steers was slaughtered at the commencement of feeding in order to measure changes in body composition due to the nutritional treatments.

THE EFFECT OF (Morinda citrifolia L.) MEAL IN DIET ON PERFORMANCE OF BROILER

2012 ◽  
Vol 2 (1) ◽  
pp. 21-27
Author(s):  
Yosi Fenita
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Morinda Citrifolia ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Randomized Design ◽  
Different Levels ◽  
Effect Of Feeding ◽  
Average Body ◽  
Average Body Weight

The objective of the research was to evaluate to effect of feeding mengkudu on performances of broilers. The research design used was completely randomized design. One hundred broilers were distributed into five treatments. The treatments were different levels of mengkudu meal (0, 0.75%, 1.5%, 2.25 % and 3%). The observed measured were feed consumption, average body weight (gain) and feed conversion. Results showed that feeding mengkudu (Morinda Citrifolia L.)  no effect significant (P>0.05) on feed consumption, average body weight and feed conversion.  In conclusion, feeding mengkudu meal up to 3% (in diet) does not negatively affect feed consumption, average body weight, and feed conversion.

Early sex determination of Turkey by observation of differences in body weight between male and female

2021 ◽  
Vol 31 (3) ◽  
pp. 218-226
Author(s):  
S Akter ◽  
SC Das ◽  
AS Apu ◽  
T Ahmed ◽  
A Lahiry ◽  
...  
Keyword(s):  
Body Weight ◽  
Male And Female ◽  
Live Body Weight ◽  
Commercial Broiler ◽  
Percent Accuracy ◽  
Similar Body ◽  
Black Color ◽  
Average Body ◽  
Average Body Weight

The present study was conducted to determine the early sex in turkeys by observation of the differences in body weight between male and female birds. A total of 30-day old black color unsexed poults having almost similar body weight at hatching were considered for the experimentation and housed at the Poultry Farm of Bangladesh Agricultural University, Mymensingh-2202, Bangladesh. All birds were reared up to 12 weeks of age under intensive management with supplementation of commercial broiler starter and grower feeds. Birds were reared under similar management conditions. Significantly higher (p<0.01) body weight was attained in male poults (104g/bird) than the female (90g/bird) at the end of 1st week of age. Similarly, at the end of 2nd week of age higher (p<0.01) body weight attained by male poults (198.31g/bird) than the female (162.13g/bird). At the end of 3rd weeks of age male poults attained higher (p<0.01) body weight (307.23g/bird) than the female (251.33g/bird). After 4 weeks of rearing, male turkeys attained significantly higher (p<0.01) live body weight (424.46g/bird) than the female turkeys (347.87g/bird). The weekly average body weight gains of male and female birds were 94.18g/bird and 76.5g/bird, respectively. Thus, the male and female birds were successfully identified on the basis of differences in their body weight. Weekly feed intake for both the male and female birds was also increased with their age. Up to 4 weeks of age, both the male and female poults consumed same amount of feed (753.46g/bird). The FCR of male and female poults differed non-significantly in 1st, 3rd and 4th week. On the contrary, in 2nd week of age the FCR of male poults (1.60) was significantly lower (p<0.01) than female (2.11). Survivability was 100% up to 4th week of age irrespective of sex of the poults. The birds were reared up to 12 weeks of age until to confirm their sex by observation of the phenotypic appearance. Results of the phenotypic observation of male and female birds correspondence hundred percent accuracy with the results obtained in body weight based differences between male and female birds. It is therefore concluded that farmers can identify male or female poults as early as first week of age on the basis of body weight differences. Progressive Agriculture 31 (3): 218-226, 2020

scholarly journals Quantitative characteristics of the carcasses of Moxotó and Canindé goats fed diets with two different energy levels

2010 ◽  
Vol 39 (7) ◽  
pp. 1565-1570 ◽  
Author(s):  
Ana Cristina Chacon Lisboa ◽  
Dermeval Araújo Furtado ◽  
Ariosvaldo Nunes de Medeiros ◽  
Roberto Germano Costa ◽  
Rita de Cássia do Egypto Queiroga ◽  
...  
Keyword(s):  
Body Weight ◽  
Energy Level ◽  
Energy Levels ◽  
Experimental Period ◽  
Carcass Yield ◽  
Final Weight ◽  
Quantitative Characteristics ◽  
Energetic Level ◽  
Average Body ◽  
Average Body Weight

The objective of this work was to evaluate the quantitative characteristics of carcasses of Moxotó and Canindé goats finished in feedlots and fed diets of two levels of energy. It was used 40 castrated young goats, 20 from Moxotó breed and 20 from Canindé breed, each one with an average body weight of 15.2 kg. The animals were fed with diets containing 2.20 and 2.71 (Mcal/kg DM). The experimental period lasted 86 days. There was no difference among the barometric measures of Moxotó and Canindé kids. Canindé goats showed higher final weight, higher weight after fasting and higher hot and cold carcass weights when compared to the Moxotó animals. Animals that consumed diets with higher energy level had higher final weight and conformation as well as higher carcass yield. Considering the percentage values of the commercial meat cuts, no difference among treatments was observed. The diet was the factor that most influenced the non-constituent components of the carcass of Moxotó and Canindé goats. In general, animals belonging to the Canindé breed presented higher quantitative characteristics than the Moxotó breed. Supply of diets with higher energetic level (2.71 Mcal/kg DM) for goats from Moxotó and Canindé breeds, in feedlots, favors the production of carcass with higher yields and heavier commercial meat cuts.

scholarly journals INTERAKSI GENOTIPE DENGAN LINGKUNGAN, ADAPTABILITAS, DAN STABILITAS PENAMPILAN FENOTIPIK EMPAT VARIETAS UNGGUL IKAN NILA (Oreochromis niloticus)

2015 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Didik Ariyanto ◽  
Nunuk Listiyowati
Keyword(s):  
Body Weight ◽  
Oreochromis Niloticus ◽  
Crude Protein ◽  
Genetic Factor ◽  
Environment Factors ◽  
Pelleted Feed ◽  
Environment Factor ◽  
Net Cages ◽  
Average Body ◽  
Average Body Weight

Penampilan fenotipik suatu organisme ditentukan oleh faktor genetik dan dipengaruhi oleh faktor lingkungan tempat organisme tersebut hidup. Dalam beberapa kasus, interaksi antara faktor genetik dengan lingkungan juga berpengaruh terhadap penampilan fenotipik yang dihasilkan. Penelitian ini bertujuan untuk mempelajari interaksi antara faktor genetik dengan lingkungan, daya adaptabilitas dan stabilitas penampilan fenotipik khususnya bobot individu pada empat varietas unggul ikan nila yang dipelihara di tiga lokasi berbeda. Ikan nila varietas GMT, merah NIFI, NIRWANA dan BEST dipelihara di tambak payau di Indramayu, kolam air tenang di Sukamandi dan karamba jaring apung di Waduk Cirata, Kabupaten Cianjur, selama empat bulan pemeliharaan. Benih ikan nila diberi pakan pelet komersial dengan kandungan protein kasar 28%-30%, sebanyak 10%; 7,5%; 5%; dan 2,5% dari biomassa ikan masing-masing pada bulan pertama, kedua, ketiga, dan keempat. Pakan diberikan dengan frekuensi dua kali setiap hari. Hasil penelitian menunjukkan bahwa bobot ikan nila secara nyata dipengaruhi oleh faktor genetik, lingkungan, serta interaksi antara kedua faktor tersebut. Selain ikan nila GMT, tiga varietas ikan nila yang diuji mempunyai adaptabilitas lingkungan relatif sempit, serta stabilitas penampilan fenotipik karakter bobot individu relatif rendah. Hal ini mengindikasikan bahwa pengembangan budidaya ikan nila GMT dapat dilakukan di semua lokasi, sedangkan ikan nila merah NIFI, NIRWANA, dan BEST akan optimal jika dilakukan di lokasi tertentu saja.Phenotypic performance was determined by genetic and environment factors and their interaction. This study was conducted to examinethe present of interaction both of genetic and environment factors, adaptability, and stability of phenotypic performance of four varieties of tilapia which maintained in three different location. GMT, red NIFI, NIRWANA, and BEST tilapia strains were reared for four months in net cages in Cirata reservoir in Cianjur, in earthen ponds in Sukamandi and in brackish water ponds in Indramayu. All fish were fed with commercial pelleted feed contained of crude protein 28%-30%, about 10%, 7.5%, 5%, and 2.5% each day in 1st, 2nd, 3rd, and 4th month, respectively. The results showed that tilapia’s phenotipic performance especially the average body weight was significantly affected by genetic factor, environment factor, and interaction both of them factors. Except the GMT, all tilapia strains used in this study have narrow phenotypic adaptability and stability, especially in average body weight. This results indicated that GMT tilapia strain can be farmed in various areas, but red NIFI, NIRWANA, and BEST tilapia strains are most likely in a specific location.

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