scholarly journals Influence of sire on internal egg quality and linear body traits of Japanese quail raised in the humid tropical environment

2020 ◽  
Vol 46 (1) ◽  
pp. 20-29
Author(s):  
O. C. Obi ◽  
O. M. Obike ◽  
U. K. Oke ◽  
A. C. Orji ◽  
D. N. Onunkwo
Keyword(s):  
Body Weight ◽  
Body Length ◽  
Japanese Quail ◽  
Egg Quality ◽  
Block Design ◽  
Direct Selection ◽  
Meat Production ◽  
Quality Traits ◽  
Linear Body ◽  
Haugh Unit

A total of 270 pedigreed-hatched day old chicks of three strains of Japanese quail generated from a base population of 36 adultswere used in a randomized complete block design to estimate the influence of sire on the internal egg quality and linear body traits of the birds. Parameters measured were internal egg quality traits - albumen height, yolk height, albumen weight, yolk weight, albumen diameter, albumen length, yolk width, yolk length, yolk index, and haugh unit, and growth traits - body weight, thigh length, breast length, body length, keel length, wing length, and shank length. Results showed that linear bodyparameters were significant (P<0.05) except body weight at week 9. Panda white x Cinnamon brown (PWxCB) progenies out-performed the progenies of the other strains mainly at week 9. The PWxCB strain had the highest values in the following: body weight (159.30), thigh length (4.76), breast width (7.40), body length (11.94), keel length (6.77), and shank length (3.44). The haugh unit value was significantly (P< 0.05) different among the three strains mainly at week 8 with CBxCB strain having higher value of (89.07) followed by PWxCB strain (89.03). The phenotypic correlations between the linear body parameters andinternal egg quality traits in Cinnamon brown x Cinnamon brown (CBxCB) strain were significant (P<0.01) in keel length and yolk weight (0.534) and between shank length and yolk weight (0.473) at week 9. For PWxCB strain, high significant (P<0.01) correlation were seen between shank lengthand albumen length (0.631) at week 8, body weight and yolk index at week 9. Silver brown x Cinnamon brown (SBxCB) strain also showed high positive significant (P<0.01) correlation between shank length and yolk weight (0.541), breast width and albumen weight (0.537) and between body length and albumen weight (0.625) at week 9.These positive correlations imply that by direct selection for any linear body trait for increased meat production, there will be a remarkable genetic improvement in the internal egg quality trait. It can be concluded that PWxCB is a strain of choice for improved growth and internal egg quality characteristics.

scholarly journals 222 Sire influence on hatchability and heritability estimates of quails in a humid tropical environment

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 48-48
Author(s):  
Uma K Oke ◽  
Obioma Chinadum
Keyword(s):  
Body Weight ◽  
Japanese Quail ◽  
Block Design ◽  
Heritability Estimate ◽  
Tropical Environment ◽  
Meat Production ◽  
Significant Difference ◽  
High Heritability ◽  
Selection For ◽  
Different Strains

Abstract Study on Japanese quail was undertaken to determine sire influence on hatchability and estimation of heritability values among three strains of the birds in a humid tropical environment in Nigeria. Fertility and hatchability traits; body weight (BW), shank length (SL), thigh length (TL), breast length (BL), keel length (KL), and wing length (WL) at 2nd, 6th, 10th weeks of age were measured on 300 crossbred progeny from 270 Cinnamon brown dam mated with three different strains of sire namely; Cinnamon brown (CB), Panda White (PW), and Silver Brown (SB) in the mating ratio of 1: 4. The data were subjected to analysis of variance appropriate for completely randomised block design (CRBD) and significant means separated with Duncan’s multiple range tests. Heritability estimate was done using the sire component equation. The average percent fertility (71.64 - 75.76 %), hatchability (50.41 -57.17%), percent dead in germ (55.00 - 69.08%),dead in shell (11.20 - 18.25%) were significantly (P &lt; 0.05) better in PW - sired progeny, while piped (13.06 - 20.11%), brooding (3.00 - 4.67%) and rearing mortality showed no significant difference (P &gt; 0,05) among the three sired - progeny. The analysis showed that at weeks two, six, and ten, SB - sired progeny had superior heritabity estimates in most of the linear traits and recorded lower indeterminate values as compared with other sired - progeny. Moderate to high heritability estimate (42 - 83%) obtained for body weight at six and 10 weeks among the three progenies suggests that selection for body weight or growth rate in Japanese quail should be carried out at 6 and 10 weeks of age and that PW - sired progeny be selected for better hatchability for enhanced breeding program for both egg and meat production in the strains.

Prediction of body weight from linear body measurements in Japanese quail

2020 ◽  
Vol 45 (4) ◽  
Author(s):  
I. O. Dudusola ◽  
E. A. Adeyemi ◽  
O. F. Oyeromi
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Length ◽  
Japanese Quail ◽  
Body Weight Gain ◽  
Coefficient Of Determination ◽  
Body Measurements ◽  
Male Body ◽  
Body Weight Data ◽  
Linear Body

A total of 168 two-weeks-old Japanese quail chicks of mixed sex were used to study the relationship between Body weight and linear measurements in Japanese quail. Data were collected on body weight, body length, body girth, wing length, shank length and drumstick length fortnightly for eight weeks to predict body weight. Data were subjected to SAS for analysis. The mean body weights were 38.31, 81.12, 121.38 and 132.15g, respectively. Body weight gain increased as the birds advance in age and the highest body weight gain was between week 2 and week 4. Female birds were significantly (P< 0.05) heavier than male. Body weight had a positive correlation with all linear body measurements at week 2 except for drumstick length. The best correlation was obtained between body weight and body girth at the 2nd week of age (0.82) (P< 0.05). The estimates of coefficient of determination which ranged from 0.0043 to 0.68 and predictive equations show that body weight in Japanese quail is linearly related to body measurements especially with body girth and body length. The study showed that Body girth and Body length could be used as criteria for assessment and early selection of Japanese quail for body weight.

INFLUENCE OF BREED, BIRTH DATE, AGE AND BODY WEIGHT ON LINEAR BODY MEASUREMENTS OF GROWING RAMS MAINTAINED IN A CONTROLLED ENVIRONMENT

1984 ◽  
Vol 64 (2) ◽  
pp. 279-291 ◽  
Author(s):  
J. N. B. SHRESTHA ◽  
D. P. HEANEY ◽  
P. S. FISER ◽  
G. A. LANGFORD
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Litter Size ◽  
Body Length ◽  
Birth Date ◽  
Controlled Environment ◽  
Body Measurements ◽  
Leg Length ◽  
The Relationship ◽  
Linear Body

Heart girth (HG), body length (BL), leg length (LL), metacarpal circumference (MC), withers height (WH) and hook width (HW) of 233 growing rams of three synthetic strains, Suffolk and Finnsheep breeds were measured at 6, 8 and 10 mo of age. Thereafter, subsequent measurements were taken at 11–13 mo, 18–21 mo and 23–25 mo of age. Breed, birth period (hysterectomy derived birth date), age of ram and body weight (BW) had important effects (P < 0.05) on linear body measurements, whereas age of dam did not (P > 0.05). Significant effects of litter size on HG and BL were observed at 6 and 8 mo of age, respectively. All linear body measurements increased from 6 to 21 mo of age, whereas BL, WH and HW continued to increase to 25 mo. Rams of Strain 1, developed as a synthetic sire strain, with a large proportion of Suffolk background were generally similar to the Suffolk rams in all body measurements except for HG which was significantly larger than in Suffolk rams. The Finnsheep rams had smaller HG, BL, MC and HW than the synthetic strains and Suffolk rams, whereas LL and WH of the Finnsheep and Suffolk rams were similar. Rams of Strains 2 and 3, developed as synthetic dam strains with 50 percent Finnsheep background, were similar in body measurements. The synthetic dam strains did not differ from Strain 1 and/or Suffolk with respect to HG, BL, WH and HW. However, Suffolk rams had larger MC and shorter LL compared to those of the Strain 2 and 3 rams. Birth period had a significant effect on HG, BL, LL and MC, but no consistent trend with age of ram was apparent. Linear body measurements were positively correlated with each other and with body weight; however, the relationship varied as rams progressed in age. The importance of breed, birth date, age of ram and body weight on body measurements and the requirements for appropriate adjustments is emphasized. Key words: Sheep, body measurements, breed, birth date, age of ram

CORRELATED RESPONSES IN EGG QUALITY TRAITS TO SELECTION FOR EARLY BODY WEIGHT IN MEAT-TYPE CHICKENS

1972 ◽  
Vol 14 (3) ◽  
pp. 477-482 ◽  
Author(s):  
V. Buvanendran ◽  
E. S. Merritt
Keyword(s):  
Body Weight ◽  
Egg Quality ◽  
Correlated Response ◽  
Quality Traits ◽  
Correlated Responses ◽  
Egg Weight ◽  
Shell Color ◽  
Blood Spots ◽  
Selection For ◽  
Meat Type

The correlated responses in egg quality traits to selection for high early body weight were studied in seven meat-type populations comprising five selected and two control lines. Traits studied were specific gravity, egg weight, albumen height, Haugh units, shell color, egg shape, shell roughness, wrinkling and asymmetry, and incidence of blood spots, meat spots and double yolks. Significant (P < 0.05 or < 0.01) correlated changes, as determined by the regression of correlated response (egg quality traits) on primary response (body weight), were obtained for egg weight, albumen height, Haugh units, asymmetry of shell and blood spots. All but blood spots increased with selection for high body weight. Shell color showed a consistent trend towards a darker color with increasing body weight. Scores for roughness of shell and, with one minor exception, the incidence of double yolks, also showed consistent trends (positive) with increasing body weight. Estimates of genetic correlations, derived directly from intra-line genetic analyses of the six pedigreed populations in the experiment, were in most cases in reasonable agreement with realized estimates.

scholarly journals Effect of Dietary Supplementation with Diatomaceous Earth on Egg Quality Traits in Hens Raised on Deep Litter

2020 ◽  
Vol 2 (6) ◽  
Author(s):  
Robert Alex Isabirye ◽  
Savino Biryomumaisho ◽  
James Acai-Okwee ◽  
Samuel Okello ◽  
George William Nasinyama
Keyword(s):  
Specific Gravity ◽  
Diatomaceous Earth ◽  
Egg Quality ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Quality Parameters ◽  
Quality Traits ◽  
Weight Percentage ◽  
Calcium Phosphorus ◽  
Haugh Unit

The study was conducted to investigate the effect of dietary diatomaceous earth (DE) on egg quality traits in deep litter hens. A total of 280 Lohmann Brown pullets were at 20 weeks of age divided into 4 groups. Three groups were fed on one of the three experimental diets supplemented with 2%, 3% or 4% DE, while the fourth group was fed on a control diet without DE supplementation. Each group had seven replicates of 10 birds. One egg was collected randomly per replicate (for a total of 7 eggs per group), weighed and determined for: yolk weight, albumen weight, eggshell weight, eggshell thickness, specific gravity, albumen height, yolk height, yolk colour and Haugh unit. Findings showed that DE supplementation resulted into significant (p<0.05) increase in eggshell weight and yolk height. Dietary supplementation with DE in the current study was, however, not effective on other egg quality parameters such as on eggshell weight percentage, egg specific gravity, yolk colour and Haugh unit. However, results of the study also showed that DE supplementation improved significantly (p<0.05) egg quality especially by improving viscosity as flocks grew older as compared to younger flocks. Further research should focus on the effect of dietary DE on eggshell and bone strength of layer birds. Research should also explore the interactions among the minerals found in DE (e.g. calcium, phosphorus and magnesium) and how these interactions affect egg quality in laying hens.

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