Growth rate and egg production of Creole and Rhode Island Red × Creole fowls

1993 ◽  
Vol 25 (2) ◽  
pp. 111-117
Author(s):  
F. H. K. Asiedu ◽  
W. Weever
Keyword(s):  
Growth Rate ◽  
Rhode Island ◽  
Egg Production

RESPONSE OF WHITE LEGHORN AND RHODE ISLAND RED BREEDER HENS TO DIETARY DEFICIENCIES OF SYNTHETIC VITAMINS. 1. EGG PRODUCTION, HATCHABILITY AND CHICK GROWTH

1979 ◽  
Vol 59 (3) ◽  
pp. 561-567 ◽  
Author(s):  
S. LEESON ◽  
B. S. REINHART ◽  
J. D. SUMMERS
Keyword(s):  
Adverse Effect ◽  
Growth Rate ◽  
Rhode Island ◽  
Soybean Meal ◽  
Egg Production ◽  
Control Diet ◽  
White Leghorn ◽  
Chick Growth ◽  
Breeder Hens ◽  
Single Comb

Thirty-week-old purebred strains of Single Comb White Leghorn (WL) and Rhode Island Red (RIR) breeder hens were offered a control corn-soybean meal diet or the control diet with one of the following vitamins omitted from the supplement: biotin, B12, E, folacin, niacin, pantothenate and riboflavin. For each strain, four randomly distributed cages of four birds were offered each diet. Birds were inseminated weekly with 0.05 ml of pooled White Leghorn (WL) semen. Egg production, fertility and hatchability were recorded. After 15 wk, the vitamins omitted were added to the diets, and observations continued for a further 5 wk. With the exception of biotin, each unsupplemented diet had an adverse effect on egg production of RIR (P < 0.05), although few significant effects were observed with WL. Diet had no effect on fertility. Lack of added riboflavin had the most effect on hatchability, with 0% being recorded for both strains after 13 wk of treatment. All other treatments depressed hatchability for RIR (P < 0.05), although the pattern was not as well defined with W.L. Both breeds responded to re introduction of vitamins, such that at the end of the trial no significant (P > 0.05) differences in production or hatchability were recorded. There was no difference in growth rate of chicks hatched from eggs produced during the 8th wk of treatment.

scholarly journals Effect of genotype, age of hens and K/k allele on eggshell quality

2011 ◽  
Vol 56 (No. 5) ◽  
pp. 242-249 ◽  
Author(s):  
Z. Ledvinka ◽  
L. Zita ◽  
M. Hubený ◽  
E. Tůmová ◽  
M. Tyller ◽  
...  
Keyword(s):  
Growth Rate ◽  
Egg Production ◽  
Statistical Significance ◽  
Live Weight ◽  
Shape Index ◽  
Feed Mixture ◽  
Eggshell Quality ◽  
Feather Growth ◽  
Two Factors ◽  
The Relationship

We assessed the influence of the particular genotype, age of layers, feather growth-rate gene, and their mutual interactions on selected indicators of eggshell quality in six groups of hens of the laying type Dominant. The following genotypes were examined in the experiment: Barred Plymouth Rock, Dominant BPR 951 (K) strain, slow-feathering; Barred Plymouth Rock, Dominant BPR 901 (k) strain, fast-feathering; Blue Plymouth Rock, Dominant BLPR 954 (K) strain, slow-feathering; Blue Plymouth Rock, Dominant BLPR 894 (k) strain, fast-feathering; crossbreds of the above strains in the F<sub>1</sub> generation Dominant D 107 blue (K), slow-feathering and Dominant D 107 blue (k), fast-feathering. The layers were fed a feed mixture NP1 (16.64 % CP) from the 20<sup>th</sup> week of age and a feed mixture NP2 (15.02% CP) from the 42<sup>nd</sup> week. Husbandry conditions met the regular requirements of laying hens. Egg production and live weight of hens were monitored for the duration of the experiment (12 months). Eggshell quality was examined at the layers' age of 27, 35 and 56 weeks. The average hen-day egg production for the duration of the experiment (12 months) was not significantly influenced by the particular genotype or the feather growth-rate gene. The varying representation of the feather growth-rate gene significantly (P &le; 0.001) influenced the live weight; similarly, the relationship between the genotype and the representation of K/k alleles was significant. The average egg weight was influenced statistically significantly (P &le; 0.001) by the age of hens, their genotype (P &le; 0.05), feather growth-rate gene (P &le; 0.001), and the relationship between the age and genotype (P &le; 0.001). The age of hens, genotype, and the interaction of these two factors affected the egg shape index, as did the incidence of the feather growth-rate gene within the population (with a statistical significance of P &le; 0.001). The age, genotype and the feather growth-rate gene incidence within the population also significantly affected the eggshell quality indicators. In the eggshell to egg ratio, eggshell thickness and strength, an interaction was determined between the age of hens and their particular genotype. The eggshell colour was also significantly (P &le; 0.001) affected by hens' age, genotype (P &le; 0.001), as well as by the feather growth-rate gene (P &le; 0.001). No significant interaction between the age and the genotype was found for this indicator.

scholarly journals EGG PRODUCTION CURVE OF RHODE ISLAND RED CHICKENS

2021 ◽  
Vol 28 (1) ◽  
pp. 78-83
Author(s):  
O. O. ONI ◽  
N. I. DIM ◽  
B. Y. ABUBAKAR ◽  
O. E. ASIRIBO
Keyword(s):  
Linear Regression ◽  
Mathematical Models ◽  
Rhode Island ◽  
Cycle Length ◽  
Egg Production ◽  
Goodness Of Fit ◽  
Production Data ◽  
Production Cycle ◽  
Breeder Hens ◽  
The Mean

Data on the monthly egg production of a strain of Rhode Island chickens (500 breeder hens) were used to test the goodness of fit of six mathematical models, viz; Exponential, Parabolic exponential, Wood's Gamma type and modified Gamma type by McNally, Inverse polynomial and Linear regression. Egg production was summarized for each hen into 28-d periods, starting from the day of firts egg. The hens were classified into different production cycle length based on the number of 28-d periods. The models were fitted to the mean results obtained for periods within groups of hens. The effect of cycle length on goodness of fit was also examined separately for the 'best' three models with highest R2 values. The egg production cycle (i.e. number of 28-d periods) varied from 9 to 15 periods. Similarly, the coefficients of determination (R2) varied from 0.16 to 0.95 from fitting the models to mean egg production data for groups of hens. The results suggest that thye 'best' three models that were chosen fitted 52 week laying records quite well, judging from their respective R2, which were higherf for McNally (0.95) and Parabolic exponential (0.93) than for wood (0.75). Based on the goodness of fit to 52-week production record, the McNally model gave the best results. However, its suitability in predicting full year production from part year record needs to be further investigated.

scholarly journals A production trial with layers of four hybrids under different environmental conditions in the Eastern Province of Saudi Arabia.

1971 ◽  
Vol 19 (4) ◽  
pp. 204-210
Author(s):  
H. Appelman ◽  
B.J. Bonhof
Keyword(s):  
Saudi Arabia ◽  
Rhode Island ◽  
New Hampshire ◽  
Egg Production ◽  
Live Weight ◽  
Egg Mass ◽  
White Leghorn ◽  
Eastern Province ◽  
Egg Weight ◽  
Food Consumed

161 Australorp X Rhode Island Red (RIR) X New Hampshire (NH) and 166 White Leghorn (WL) imported fowls were kept in insulated housing; 161 Australorp X RIR X NH, 166 WL, 154 RIR X WL and 148 RIR X NH X RIR fowls were kept in open houses. In the 6 groups resp., live weight at 126 days of age averaged 1602, 1227, 1578, 1234, 1397 and 1539 g, food consumption 4.02, 4.49, 4.03, 4.47, 4.25 and 4.17 kg/kg gain, overall laying percentage 56.6, 56.4, 52.5, 53.4, 55.0 and 37.5, egg production/hen 202, 201, 188, 191, 196 and 134, and egg weight 56.3, 56.3, 55.0, 55.8, 55.0 and 57.5 g. Egg mass averaged 1335, 1323, 1191, 1151, 1126 and 796 kg and food consumed/kg eggs produced 3.68, 3.53, 3.71, 3.25, 3.37 and 4.74 kg. Live weight at 16 mth of age averaged 2894, 2040, 2665, 1874, 2132 and 2517 g, and mortality 12.8, 11.1, 33.6, 43.5, 52.8 and 50.4%. (Abstract retrieved from CAB Abstracts by CABI’s permission)

scholarly journals Effect of Diatomaceous Earth on Growth Rate, Egg Production, Feed Conversion Efficiency and Parasitic Load in Hens Raised on Deep Litter

2021 ◽  
Vol 3 (1) ◽  
pp. 97-103
Author(s):  
Robert Alex Isabirye ◽  
Savino Biryomumaisho ◽  
James Okwee-Acai ◽  
Samuel Okello ◽  
George William Nasinyama
Keyword(s):  
Growth Rate ◽  
Conversion Efficiency ◽  
Egg Production ◽  
Diatomaceous Earth ◽  
Agricultural Research ◽  
Ascaridia Galli ◽  
Feed Conversion ◽  
Indigenous Chicken ◽  
Feed Conversion Efficiency ◽  
Treatment Groups

The efficacy of diatomaceous earth (DE) on growth rate, egg production and on increasing feed conversion efficiency in deep litter raised layer hens was evaluated. The study was conducted at Mukono Zonal Agricultural Research and Development Institute (MUZARDI) in Uganda. Worms were collected from fresh intestines of indigenous chicken obtained from Kalerwe chicken market near Kampala. The DE was mined in Pakwach (formerly Nebbi) district in Northern Uganda. Chickens of the Lohmann Brown breed raised on deep litter were studied. At 7 weeks the birds were divided into 5 treatment groups, A, B, C, D and E each composed of 40 birds. Groups C, D and E were given an oral dose containing 250 embryonated eggs of A. galli while groups A and B were not infected. The chicks were weighed; and subjected to feeding trials as arranged below: A – Non-infected birds on DE (4%) supplemented diet; B –non-infected birds on neither piperazine (a conventional de-wormer) nor DE; C – infected birds on DE supplemented diet; D – infected birds on piperazine; and group E – infected birds on neither DE nor piperazine applied. Fecal samples were collected and analysed in the laboratory biweekly at week 16 till week 22 respectively for fecal egg counts. In a subsequent experiment, day-old layer chicks from Lohmann Brown strain but different from those used in earlier experiments, were used to assess the effect of DE on egg production. At 17 weeks of age the 420 were divided as follows: 6 treatment groups each having 7 replicates and each replicate having 10 birds. This study showed that DE can be used successfully in growing pullet diets to correct nutritional mineral imbalance since it supplies more than 14 trace elements and other elements. Diatomaceous earth also enables pullets to cope with Ascaridia galli load; and 2% DE supplementation did not have significant improvement on egg production as compared to no supplementation at all. However, reduction in egg production was experienced when supplementation with levels of DE higher that 2% was applied. Results from biweekly fecal analyses showed significant differences in fecal egg counts (p<0.05); and treatment by group (p<0.05).

scholarly journals Selection responses for egg production of Fayoumi and Rhode Island Red breeds

2016 ◽  
Vol 19 (1-2) ◽  
pp. 66-73
Author(s):  
ME Haque ◽  
GK Deb ◽  
MN Hasan ◽  
MH Ali
Keyword(s):  
Rhode Island ◽  
Genetic Gain ◽  
Egg Production ◽  
Management Practices ◽  
Selection Responses ◽  
Lower Productivity ◽  
Significant Difference ◽  
F2 Generation ◽  
Foundation Stock ◽  
F1 Generation

This experiment estimated the selection responses for egg production of Fayoumi (Fay) and Rhode Island Red (RIR) breeds. A total of 3000; belonging Fay 2000 & RIR 1000 day old chicks were collected from Egypt and Bangladesh Livestock Research Institute (BLRI), Savar, Dhaka respectively, considered as foundation stock. The chicks were brooded for 5 weeks and reared up to 14 weeks of age providing standard feeding and management. After brooding, 640 Fay and 504 RIR pullets were reared in 40 and 36 individual pens respectively, considering as a family. Finally, 30 and 24 best families of Fay and RIR respectively were selected with 420 Fay and 288 RIR pullets at 15 weeks of age, on the basis of age at 1st egg lay, egg production and fertility. Salmonella and mycoplasma free eggs were collected on the basis of blood test (agglutinate test) from the selected families of both the breeds and hatched out for next generation. The experiment was continued up to 40 weeks of age for each generation. The study revealed that hen day egg production of Fay and RIR was higher in Foundation stock (64.39% in Fay and 68.54% in RIR) than that of F1 generation (58.6% in Fay and 46.8% in RIR) but no significant difference (P > 0.05) was observed for livability between Foundation stock and F1 generation. Reasons for lower productivity in F1 generation may be the poor management practices during growing period. In F2 generation, egg production was higher in both the breeds (64.09% in Fay and 62.05% in RIR) than in F1 generation. Egg production of RIR was not recorded for F3 generation, as their ability to adopt under farmers condition was very poor. However, in F3 generation, egg production of Fay was higher (65.82%) than in F2 generation. Genetic gain in Fay was 0.06%, 0.11% and 0.12% for F1, F2 and F3 generation, respectively. In case of RIR genetic gain was 0.07% in F1 and 0.18% in F2 generation. Due to selection slight genetic gain for egg production was obtained in Fay and RIR but further research with larger stock is needed for better understanding of selection responses of these breeds.Bangladesh J. of Livestock Res. 19(1-2): 66-73, Jan-Dec 2012

Egg production, egg quality and crop content of Rhode Island Red hens grazing on natural tropical vegetation

2012 ◽  
Vol 45 (2) ◽  
pp. 367-372 ◽  
Author(s):  
Khaled Abouelezz Fouad Mohammed ◽  
Luis Sarmiento-Franco ◽  
Ronald Santos-Ricalde ◽  
Javier Francisco Solorio-Sanchez
Keyword(s):  
Rhode Island ◽  
Egg Production ◽  
Egg Quality ◽  
Crop Content ◽  
Tropical Vegetation

Genetic analysis of growth, production and reproduction traits afterlong-term selection in Rhode Island Red chicken

2016 ◽  
Author(s):  
Sanjeev Kumar
Keyword(s):  
Rhode Island ◽  
Egg Production ◽  
Selection Criterion ◽  
Least Square ◽  
Economic Traits ◽  
Term Selection ◽  
Body Weights ◽  
Reproduction Traits ◽  
Genetic And Phenotypic Correlations ◽  
Growth Production

In present investigation, 325 single-hatched RIR chicks that has undergone 30 generation of selection based on 40-week part-period egg production were evaluated for growth and layer economic traits using least-squares analysis of variance. Overall least-square means of body weight at 16, 20, 40 and 64 weeks of age were 1362.6±21.4g, 1791.6±24.5g, 2184.6±26.2g and 2433.8±34.2g, respectively. Males were significantly heavier than females (P£0.001) at all ages. Least-square means of age at sexual maturity, egg weight at 28, 40 and 64 weeks of age, egg number up to 40 and 64 weeks of age were 134.5±0.9days, 44.8±0.3g, 47.73±0.4g, 51.5±0.7g, 118.3±1.2eggs and 214.5±4.8eggs, respectively. Heritability estimates were high for growth and low to medium for layer economic traits. Genetic and phenotypic correlations among body weights were high and positive. The egg production up to 40 weeks revealed high and positive genetic (0.89±0.15) as well as phenotypic (0.63) correlations with egg production up to 64 weeks suggesting the its usefulness as selection criterion for genetic improvement of annual egg production.

Sign in / Sign up

Export Citation Format

Share Document