نتایج جستجو برای: shell thickness st and shell yield sy were between 009 sy to 041 ew heritability of internal egg quality traits consisting yolk weight yw
تعداد نتایج: 24753795 فیلتر نتایج به سال:
This study was conducted to investigate the effects of garlic powder on the performance, egg traits, egg cholesterol and serum parameters of laying Japanese quails. One hundred and twenty 10-weeks-old quails were allocated to four dietary treatments. Quails were caged individually and fed diets supplemented with 0 (control), 1, 2, 4% garlic powder for 12 weeks. There were significant (P < 0.05)...
to investigate the effect of two dietary levels of l-carnitine and vegetable fat powder on the quality of cockerels' sperm and broiler breeder fertility and hatchability. two hundred and fifty female and twenty five male broiler breeders. were studied classic hubbard parent stocks were randomly distributed in five groups of 50 with five replicates of 10 females and one male. two levels of ...
Abbasali Gheisari*, Peyman Ghayor Department of Animal Science, Isfahan Research Center for Agriculture and Natural Resources, Isfahan,Iran * Corresponding author E-mail: [email protected] Received: 15 August 2013 Accepted: 21 November 2013 Abstract This experiment was conducted to investigate the effect of feeding 5 experimental diets containing 0, 5, 10, 15 and 20%...
the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...
The aim of this study was to evaluate the effect rearing systems and genotypes on production performance egg quality. Isa Brown New Hampshire were used in study. These two housed floor organic systems. During experimental period, which lasted one year (52 weeks), following parameters recorded: production, daily mass, feed consumption, conversion efficiency, mortality. Fifteen eggs per group col...
to evaluate the morphological diversity of some almond cultivars and genotypes, an experiment was carried out on 55 iranian and foreign genotypes. twenty-nine quantitative and qualitative characteristics of nuts and kernels as well as 4 phenotypic characteristics of almond trees were evaluated. analysis of variance and means comparisons indicated that all the characteristics of the examined cul...
The objective of this study was to investigate the effects of dietary corticosterone on egg quality. For 2 weeks hens received either control or experimental diet containing corticosterone at 30 mg/kg diet. Feed intake and egg production were monitored daily, and body weight measured weekly. Egg weights and egg quality were measured daily. Corticosterone treatment resulted in a remarkable incre...
This study was conducted to evaluate the effect of different levels of sunflower meal (SFM) and niacin on laying hens performances, biochemical parameters, antioxidant status, and egg yolk cholesterol concentration. A total of 960, White Leghorn (Hy-Line W-36) commercial layers were randomly assigned to 12 groupsof 8 replicates with 10 hens each. Hens were allocated to diets 1 through 12 in a 3...
The efficiency of cross-breeding programs mainly depends on the choice of the progenitors and the knowledge on the transmission of traits that breeder wants to improve. In the present study heritability rate of 65 traits related to different parts of vegetative, reproductive, nut and kernel in 12 populations (320 progenies) derived from controlled crosses of 13 local and foreign almond genotype...
This experiment was carried out to study the effect of different levels (3.06, 3.23, 3.4, 3.57 and 3.74%) of calcium and vitamin D3 (2000, 2200 and 2400 IU/kg diet) on eggshell quality of laying hens. In a completely randomized design and in a 5×3 (15 treatments) factorial arrangement, two hundred and forty (240) white leghorn laying hens, strain Hy-Line W36 and 26 weeks old, were divided into ...
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