scholarly journals Physical chick parameters and effects on growth performance in broiler

2010 ◽  
Vol 53 (1) ◽  
pp. 108-115 ◽  
Author(s):  
M. Petek ◽  
A. Orman ◽  
S. Dikmen ◽  
F. Alpay
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Length ◽  
Growth Parameters ◽  
Growth Potential ◽  
Length Of Day ◽  
Subsequent Growth ◽  
Light Yellow ◽  
Criteria For Selection ◽  
Selection Of

Abstract. This study was made to compare physical chick quality indicators such as chick length and feather colour and their effects on the uniformity and subsequent growth performance in broiler. For this reason; 600 day old male chicks were used. Chicks were classified into two groups on the basis of their feather colour: deep and light yellow. Then, chicks in each group were further divided into three groups as small, middle and large according to their body length. The length of the middle group animals was varied between 18.0–18.3 cm, while that of the largest group was greater than 18.3 cm and the small group was lesser than 18.0 cm. A positive correlation between chick length and chick weight was observed in all groups at the 0 day of age. Body length uniformity in day old chick was more important than body weight uniformity. Longer chicks exhibited better growth potential throughout the experiment. The feeding efficiency and survival rate of longer chicks were numerically greater compared to smaller chicks. There were no significant differences for subsequent growth parameters in feather colour groups. Consequently; length of day old chick can be used as important criteria for selection of higher quality chicks having better growth performance.

Evaluation of growth traits in three strains of broiler chicken

2020 ◽  
Vol 47 (4) ◽  
pp. 7-14
Author(s):  
A. O. Fadare ◽  
O. E. Idowu ◽  
Q. A. Maroof
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Length ◽  
Broiler Chicken ◽  
Growth Traits ◽  
Growth Parameters ◽  
Broiler Chicks ◽  
Body Measurements ◽  
Highest Weight ◽  
Management Condition

This study was carried out to evaluate the growth performance of Marshall, Cobb and Arbor acre strains of broiler chicken. A total number of three hundred (300) day-old broiler chicks of Arbor acre, Cobb and Marshall strains were raised under the same management condition. Data was obtained on the growth performance and analyzed. Cobb strain had the highest weight of 175.78 ± 2.51g at 2 weeks of age while Arbor acre and Marshall strain had similar (p>0.05) body weight at that age. Marshall had the highest body weight of 1804.37± 50.47g followed by Cobb with a weight of 1760.16 ±15.38g) while Arbor acre had the least body weight of 1683.43 ± 25.06g at 8weeks. Cobb strain had the highest body length (32.33 ± 0.10cm) at 8 weeks. All the strain studied had similar breast girth at 4 weeks. However, Marshall strain had the highest breast girth followed by Arbor acre while Cobb strain had the least breast girth at maturity. Marshall strain and Arbor acre had similar thigh lengths while the least thigh length was recorded for the Cobb strain. The effect of sex was significant (p<0.05) on all the growth parameters at 8weeks as male broilers had higher body measurements than their female counterparts. In conclusion, Marshall strain had better growth performance than Arbor acre and Cobb strain of broiler chicken.

scholarly journals GENETIC VARIATION OF HUMPBACK GROUPER (Cromileptes altivelis) ON F1 AND F3 GENERATIONS

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Sari Budi Moria Sembiring ◽  
Tridjoko Tridjoko ◽  
Haryanti Haryanti
Keyword(s):  
Body Weight ◽  
Genetic Variation ◽  
Body Length ◽  
Quantitative Characteristic ◽  
Breeding Program ◽  
High Quality ◽  
Culture Technology ◽  
Selection Of ◽  
Rapd Method

Hatchery and culture technology of Humpback grouper has been developed. However,  sometimes it is still found constraint in sedd production and caused instability of production due to failure by many factors. Breeding program become necessary to provide seed with high quality and good genetic variation. Quantitative characteristic selection is one of breeding program to improve productivity in grouper aquaculture. The aim of this research was to produce good phenotyphic and genotypic quality of Humpback grouper candidate broodstock. Selection of Humpback grouper F1 and F3 was done based on quantitative characteristic (body length and weight) and genotyphic characteristic by using ramdom amplified polymorphism DNA (RAPD) method.  The results of conventional selection were found candidate broodstock of Humpback grouper F1 and F3 with body weight range from 170-210 g and 160-170 g consecutively.  Heterozygosity values of Humpback grouper analized by RAPD of F1 and F3 were 0.7940 and 0.7749 consecutively and it was not significantly different. This value emphasis that population of this F3 Humpback grouper was still good to grow for broodstock. Keywords: genetic variation, humpback grouper, F1, F3.

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

scholarly journals GENETIC VARIATION OF HUMPBACK GROUPER (Cromileptes altivelis) ON F1 AND F3 GENERATIONS

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Sari Budi Moria Sembiring ◽  
Tridjoko Tridjoko ◽  
Haryanti Haryanti
Keyword(s):  
Body Weight ◽  
Genetic Variation ◽  
Body Length ◽  
Quantitative Characteristic ◽  
Breeding Program ◽  
High Quality ◽  
Culture Technology ◽  
Selection Of ◽  
Rapd Method

<p>Hatchery and culture technology of Humpback grouper has been developed. However,  sometimes it is still found constraint in sedd production and caused instability of production due to failure by many factors. Breeding program become necessary to provide seed with high quality and good genetic variation. Quantitative characteristic selection is one of breeding program to improve productivity in grouper aquaculture. The aim of this research was to produce good phenotyphic and genotypic quality of Humpback grouper candidate broodstock. Selection of Humpback grouper F1 and F3 was done based on quantitative characteristic (body length and weight) and genotyphic characteristic by using ramdom amplified polymorphism DNA (RAPD) method.  The results of conventional selection were found candidate broodstock of Humpback grouper F1 and F3 with body weight range from 170-210 g and 160-170 g consecutively.  Heterozygosity values of Humpback grouper analized by RAPD of F1 and F3 were 0.7940 and 0.7749 consecutively and it was not significantly different. This value emphasis that population of this F3 Humpback grouper was still good to grow for broodstock.</p> <p>Keywords: genetic variation, humpback grouper, F1, F3.</p>

scholarly journals Evaluation of early growth performance of backcross progenies from crossbred gilts mated with their native parents

2021 ◽  
Vol 33 (2) ◽  
pp. 170-177
Author(s):  
P. E. Nwaku ◽  
M. O. Otuma
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Length ◽  
Feed Efficiency ◽  
The Body ◽  
Body Measurements ◽  
State University ◽  
Weaning Age ◽  
The Mean ◽  
Linear Body

The pre weaning growth performance of piglets from four different cross bred dams mated back to their native parents was studied in the Breeding and Research Farm of Ebonyi State University, Abakaliki. Parameters like body weight, weight gain, feed intake and feed efficiency as well as linear body measurements of body length, heart girth and height  at withers were taken and observed for growth between birth and weaning age of eight weeks. Results Results indicated significant differences (P<0.05) between the main backcross N x (N x LR) and the three other genotypes of N x (N x LW), N x (LR x N) and N x (LW x N) in all parameters. The mean birth weight of the progenies ranged from 1.00±0.60 to 1.60±5kg while the weaning weights were 10.5±0.4 to 16.0±1.0kg respectively. Results further revealed that body weight at weaning correlated responsively with all parameters and these include body length (r=0.858), heart girth (r= 0.446) and height at the withers (r= 0.946). Similarly, body length has a positive correlation with heart girth (r= 0.477) and height at the withers (r= 0.827) whereas hear girth correlated positively with the height at the withers (r= 0.494). Similar trend were obtained in the regression of each of the body measurements on the other in which bodyweight changes depended more on that of body length (0.86) than on heart girth (0.45). Judging from the observed variations existing among the piglets resulting from differnt crossbreed dams in their pre-weaning growth performance, maternal rather than paternal influences appeared to be more important in the traits studied.   

scholarly journals EVALUATION OF THE GROWTH PERFORMANCE OF CALVES FROM DIFFERENT DAMS SERVED BY SAME BULKL

2021 ◽  
Vol 28 (1) ◽  
pp. 72-77
Author(s):  
S. I. OMEJE ◽  
S. O. ALAKU ◽  
B. I. ODO ◽  
K. I. EMEHELU
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Body Length ◽  
Mean Value ◽  
The Body ◽  
Body Measurements ◽  
Weight Changes ◽  
Coefficients Of Variation ◽  
Cattle Ranch ◽  
The Individual

The growth performance of seve calves from different Mutura dams served by same bull was studied in a mini cattle ranch. Body measurements were taken and observed for growth over a period of 12 months. The result indicates an apparaent difference among the calves in all parameters measured including body weight, body length, height at withers and heratgirth. Growth rate also showed increased differences among the experimental calves. The birth weights of the seven calves ranged from 9.8 to 13.0kg, with a mean value of 11.42+0.44 while the yearling weights were between 107.80 and 129.48kg with an overall mean of 120.57+2.44. The coefficients of variation for body weight at birth and at 12 monthys were 10.16 and 5.36% respectively. The results further revealed that body weight at yearling age correlated positively with all parameters and these include body length (r=0.81889, r2 = 67.09), height at withers (r=0.8837, r2=78.09). Similarly, body length had a positive correlation with height at withers (r=0.9667, r2=93.45) and heartgirth (r=0.8782, r2=77.13). White height at withers correlated positively with heartgirth (r=0.9291, r2=86.42). Similar trends were obtained in the regression of each of the body measurements on the other in which body weight changes depended more on those of body length (0.56) than on heartgirth (0.34). Judging from the observed variations existing among the individual calves resulting from the different cows at birth and at 12 months of age, maternal rather than paternal influences appeared to be more important in the traits studied.

scholarly journals Pengaruh Penambahan Sargassum sp. dan Inositol dalam Pakan terhadap Pertumbuhan dan Daya Tahan Juvenil Ikan Gurami (Osphronemus gouramy Lac.)

2017 ◽  
Vol 16 (2) ◽  
pp. 72
Author(s):  
Dwi Lestari ◽  
E. L. Widiastuti ◽  
N. Nurcahyani ◽  
G. N. Susanto
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Survival Rate ◽  
Body Length ◽  
Growth Parameters ◽  
Freshwater Fishes ◽  
The Body ◽  
Body Width ◽  
Treatment Groups ◽  
Commercial Feed

Gourami (Osphronemus gouramy Lac.) as one of the freshwater fishes, are easily to be cultured but slow in growth rate. One of the ways to enhance their growth rate is by feeding them with high nutritious food. Sargassum sp. and inositol are known compound able to stimulate the growth of some fishes. The study was conducted to determine the effect of Sargassum sp and inositol on commercial feed to the growth rate and survival of juvenile gouramy. The study was conducted from January to April 2015 in Aquatic Laboratory of Biology Department - University of Lampung. Completely randomized designed was used with 4 treatment groups and 5 replications. Anova and Tukey at 5% levels were applied to this study. The result indicated that addition of inositol and Sargassum sp on commercial food significantly affected the gourami growth parameters such as the body weight, body length, body width as well as juvenile gouramy spesific growth rate and their survival rate.

Response of broiler chickens fed single straight diet fortified with fish meal

2020 ◽  
Vol 45 (2) ◽  
Author(s):  
D. N. Onunkwo ◽  
C. N. Okocha
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Fast Food ◽  
Broiler Chickens ◽  
Crude Protein ◽  
Fish Meal ◽  
Growth Parameters ◽  
Body Weight Gain ◽  
Broiler Chicks ◽  
Final Body Weight

This study was carried out to evaluate the growth performance, cut parts characteristics and organ proportions of broiler chickens fed single straight diet fortified with fish meal. The basal diet was augmented with fishmeal to take the crude protein from 22% to 28%. One hundred and twenty day-old broiler chicks were used in this study which lasted for six weeks. The birds were randomly distributed into 4 treatments (T , T , T and T ) that were replicated hree times with 10 birds per replicate. The replicate T , T , T and T had different inclusion ate of crude protein which were 22%, 24%, 26% and 28% all with an energy level of 2900kcal/kg. Parameters measured were the initial body weight, final body weight, values calculated include average daily feed intake, average body weight gain and feed conversion ratio. There were no significant differences observed in all the growth parameters measured. No significant differences (p>0.05) were observed in the cut parts characteristics and internal organ proportions measured. Taking all the parameters measured into consideration it suggests that in this single straight diet for broiler chicken, there were no adverse effects on their growth performance. Therefore, the four treatment diets were good enough to give body weight in the range of 2-2.5kg that resulted in dressed carcass weight of 1.35-1.5kg, a range of weight that the fast food lines desire.

A stage-explicit expression of the von Bertalanffy growth model for understanding age at first reproduction of Great Lakes fishes

2002 ◽  
Vol 59 (2) ◽  
pp. 250-261 ◽  
Author(s):  
Ji X He ◽  
Donald J Stewart
Keyword(s):  
Growth Rate ◽  
Great Lakes ◽  
Body Length ◽  
Growth Parameters ◽  
Growth Potential ◽  
Growth Trajectories ◽  
Annual Growth Rate ◽  
Von Bertalanffy ◽  
Age At First Reproduction ◽  
First Reproduction

An initial annual growth rate of body length and its regular decrease with increasing age has general linkages with age at first reproduction (tR). We clarify their combinations and develop predictive functions. We use a complete Ford–Walford plot with yearling size (L1) on the y axis and show a slope transition between the relative yearling growth rate (ρy) and the Ford–Walford slope (ρ). The three stage-specific variables define a complete body-length trajectory over ages, including all von Bertalanffy growth parameters and the Ford–Walford intercept (Lint). The difference between asymptotic length (Linf) and yearling length is growth potential after the first annulus. Yearling growth is a transition period, so growth potential can be adjusted as ρLinf or Linf – Lint. Changes in the three life-stage variables have contrasting effects on growth potential and von Bertalanffy growth parameters, so they have contrasting relations with tR. For most invertebrate-eating fishes in the Laurentian Great Lakes, dominant changes in growth trajectories were reflected in ρ, so tR was predicted by the von Bertalanffy growth coefficient, K. For walleye (Stizostedion vitreum) populations around the Great Lakes, dominant changes in growth trajectories were from yearling size or yearling growth, so tR was predicted using Lint. Our results have clear implications for understanding fish population dynamics.

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