scholarly journals Effects of location and season on productivity and productive adaptability of two parent stock exotic layer chicken strains in a warm-wet environment

2020 ◽  
Vol 45 (1) ◽  
pp. 37-50
Author(s):  
O. M. A. Jesuyon
Keyword(s):  
Block Design ◽  
General Linear Model ◽  
Egg Weight ◽  
General Linear Model Analysis ◽  
Layer Chicken ◽  
Randomized Complete Block Design ◽  
Commercial Poultry ◽  
Parent Stock ◽  
House Production ◽  
Ibadan Nigeria

Tropical commercial poultry industry is anchored on exotic strains which suffer varying degrees of productivity and adaptability problems. Adaptability is the ability to produce better or demonstrate least variation in productivity under multiple environments. The study was undertaken to examine the productivity and adaptability of Bevan Nera (IB) and Is a Brown (IB) parent stock strains under two locations and seasons. Data on weekly feed intake (FI g), cock weight (Cockwt, g), hen weight (Henwt, g), hen house production (HHP, %) and egg weight (Ewt, g) were collected from a commercial parent stock breeding farm in Ibadan, Nigeria, on the two strains. Data were subjected to general linear model analysis (GLM) procedures using SAS (1999), while mean separation was by bonferoni t-test (P=0.05). The statistical model was randomized complete block design (RCBD) in factorial. Factors of importance were Genotype (S), Location (L) as Fixed, and Season (S) as random. The effects of location on seasonal productivity and season on locational productivity for strains were 7.38, 4.96; and 4.99, 8.11 (%) for BN, IB respectively. GxL and GxLxS interactions were significant (P<0.043 and <0.013) for adaptability of strains. Locational adaptability indices were 48.59 and 51.41 while Seasonal adaptability indices were 63.32 and 36.68 (%) respectively for BN and IB strains.  

scholarly journals Persentase Fertilitas dan Daya Tetas Ayam Cemani dan White Leghorn Berdasarkan Ukuran Bobot Telur

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Tatan Kostaman ◽  
Soni Sopiyana ◽  
Bayu Dewantoro Putro Soewandi ◽  
Komarudin Komarudin
Keyword(s):  
Linear Model ◽  
Block Design ◽  
Economic Value ◽  
Large Data ◽  
General Linear Model ◽  
General Linear ◽  
Medium Size ◽  
White Leghorn ◽  
Egg Weight ◽  
Randomized Block Design

ABSTRAK. Fertilitas dan daya tetas sangat penting secara ekonomi untuk semua tempat penetasan, oleh karena itu harus diberikan perhatian khusus. Tujuan dari penelitian adalah untuk mengetahui pengaruh ukuran bobot telur terhadap persentase fertilitas dan daya tetas ayam Cemani dan White Leghorn. Telur tetas (299) dari ayam Cemani dan White Leghorn diperoleh dari kompleks kandang Balitnak dan dibagi menjadi 3 kategori ukuran bobot telur (kecil, sedang, dan besar). Data bobot telur tetas, fertilitas, dan daya tetas dianalisis berdasarkan Rancangan Acak Kelompok pola faktorial 3 x 2. Faktor pertama adalah ukuran bobot telur dan faktor kedua adalah jenis ternak, menggunakan prosedur General Linear Model dari SPSS versi 22. Jika terdapat pengaruh, maka diuji lanjut dengan uji Duncan. Sementara itu, untuk mengetahui hubungan antara ukuran bobot telur terhadap fertilitas dan daya tetas dihitung dengan persamaan regresi. Penelitian menunjukkan ukuran bobot telur secara signifikan (P0,05) memengaruhi bobot telur tetas, fertilitas, dan daya tetas. Telur ukuran sedang memberikan persentase fertilitas dan daya tetas yang lebih baik dibandingkan dengan telur ukuran kecil dan besar. Begitu juga untuk persamaan regresi memperlihatkan ada korelasi positif antara ukuran bobot telur terhadap fertilitas dan daya tetas, di mana ukuran bobot telur sedang mempunyai nilai R tertinggi. Pemilihan telur ukuran sedang akan bermanfaat untuk memaksimalkan persentase fertilitas dan daya tetas. (Percentage of fertility and hatchability of cemani and white leghorn chickens based on size of egg weight) ABSTRACT. Special attention to the trait of fertility and hatchability is very important because these two characteristics have economic value in all hatcheries. The purpose of this study was to determine the effect of egg weight size to the fertility and hatchability percentage in Cemani and White Leghorn chickens. The sample used in this research was the hatching eggs of Cemani and White Leghorn chickens (299 eggs) that obtained from the Balitnak chicken station. The eggs are divided into 3 egg weight size categories (small, medium and large). Data on weight of hatching egg, fertility, and hatchability were analyzed based on a 3 x 2 factorial randomized block design. The first factor was egg weight size and the second factor was breed. Data analysis used the General Linear Model procedure from SPSS version 22. If the effect is significantly different, then Duncan's test will be continued. Meanwhile, the correlation between size of egg weight and fertility is analyzed by regression. The results showed that the size of the egg weight was significantly (P0.05) on the hatching egg weight, fertility, and hatchability. The best percentage of fertility and hatchability is eggs in the medium category. Fertility and hatchability of eggs have a positive correlation with egg weight measurements, where the measurement of egg weight in the medium category has the highest R value. The choice of medium size eggs will be beneficial to maximize the percentage of fertility and hatchability.

scholarly journals Determination of Kolgrace bio-fertilizer rate for optimum greengram (Vigna radiata L. Wilczek) production in Ibadan, Southwest Nigeria

Agro-Science ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 82-87
Author(s):  
P.N. Ihejiofor ◽  
U.N. Ukwu ◽  
G. Adeoye
Keyword(s):  
Block Design ◽  
Growth And Yield ◽  
Fertilizer Rate ◽  
Pod Yield ◽  
Cropping Season ◽  
Randomized Complete Block Design ◽  
Southwest Nigeria ◽  
Number Of Leaves ◽  
Ibadan Nigeria

Greengram productivity has been improved by application of farmyard manures in the last two decades; however, these manures are not readily available as at when needed. In some cases, they are available but in limited supply. Kolgrace bio-fertilizer, a novel commercial product of the Association of Organic Agricultural Practitioners could serve as a superior alternative to farmyard manures. Hence, a field experiment was carried out at the Teaching & Research Farm of the Department of Agronomy, University of Ibadan, Nigeria during the 2015 cropping season to evaluate the effects of five rates (0.00, 0.25, 0.50, 1.00, and 2.00 t ha–1) of Kolgrace bio-fertilizer on the performance of greengram. The aim was to determine the optimum rate of application of this biofertilizer for greengram production. The experimental design was a randomized complete block design with four replications. Data were collected on growth and yield traits, and were subjected to analysis of variance. Results showed that Kolgrace rates significantly (p < 0.01) influenced all the traits measured with exception of fresh pod yield (FPY). Plant height (112 cm), number of leaves (87), stem girth (1.43 mm) and number of flowers (10) at 8 weeks after planting (WAP) were significantly highest with the application of 0.5 t ha–1 whereas, 0.25 t ha–1 gave best results for number of pods (42) and pod yield (3.85 t ha –1). The application of 0.5 t ha–1 is, therefore, recommended if the interest of the farmer is sprout, fodder or green manure, and 0.25 t ha–1 if the interest is for seed production. 

scholarly journals Genotypic and 20-week body weight effects on full sexual maturity traits of parent stock layers raised in commercial deep-litter system

2020 ◽  
Vol 23 (2) ◽  
pp. 46-57
Author(s):  
M.A. Jesuyon Oluwatosin ◽  
S.O. Olawumi
Keyword(s):  
Body Weight ◽  
Sexual Maturity ◽  
Egg Production ◽  
Block Design ◽  
Weight Class ◽  
Randomized Block Design ◽  
Low Weight ◽  
Parent Stock ◽  
Medium Weight ◽  
Ibadan Nigeria

Abstract The influence of genotype (GTY) and 20-week body weight (PW20) on full-sexual maturity (FSM) productivity and hatching traits were investigated on two parent-stock layers in Ibadan, Nigeria. Data were obtained on twenty-two batches of BOVAN NERA (BN) and ISA BROWN layers (IB) each, between 2009-2019, from a breeding company in Ibadan. These were grouped based on strain and 20-week body weight. Experimental design was randomized block design (RBD). Data were subjected to general linear model (GLM) factorial and Tukey’s HSD, α=0.05, procedures of Statistical Analytical Systems® (SAS, 2002) software. BN had better pullet weight (P<0.05, ds=0.88), while IB possessed higher hen-day egg production, persistency of egg production and pullet day-old chicks hatched (P<0.05, ds=-0.86 to -1.44) at FSM. The 20-week low weight birds required intensive skillful management for compensatory weight-gain to FSM, while egg weight was higher in 20-week high weight class at full maturity (P<0.05, ds=0.06 to -1.19). Genotype by 20-week pullet-weight interaction revealed better genetics of BN genotype on compensatory growth between 20th week and FSM, and on PFM (P<0.05, ds=0.24 to 1.62). The better HDF and P80 (P<0.05, ds= -1.73, -1.61) of medium weight IB genotype signals its genetic ability for higher percent day-old chicks production (P>0.05, ds= -0.72 to -1.11).

scholarly journals Penentuan Waktu Pemisahan Bibit Kembar Kelapa Sawit (Elaeis guineensis Jacq.) Asal Benih Multi Embrio di Pembibitan

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Yan Sukmawan
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Block Design ◽  
General Linear Model ◽  
Single Factor ◽  
General Linear Model Analysis ◽  
Randomized Block Design ◽  
Result Show ◽  
Elaeis Guineensis Jacq ◽  
Single Factor Experiment

The oil palm (Elaeis guineensis Jacq.) seed generally in form of germinated seed. Germinated seed purchased from oil palm seed producers often contained twin seedlings. The twin seedlings must be separated in pre-nursery before transplanted to the main-nursery. The aim of this research was to determine the best time of oil palm twin seedlings separation in nursery. The research was conducted on April to November 2016 in Politeknik Negeri Lampung. Single-factor experiment was arranged in randomized block design with three replications. The treatment was the age of twin seedling i.e.: 8 weeks after sowing (W1), 9 weeks after sowing (W2), 10 weeks after sowing (W3) and 11 weeks after sowing (W4). The data were analysed by general linear model analysis of variance (ANOVA). The means were separated using HSD at α=5% level. The result show the best time to separate the twin seedling in pre-nurserys is 9-11 weeks after sowing. Keywords: main-nursery, multi embryo, pre-nursery, twin seedlings

DISTRIBUSI DAN IDENTIFIKASI POPULASI SINTRONG (Crossocephalum crepidiodes.Benth) RESISTEN PARAKUAT PADA LAHAN JAGUNG (Zea mays) DI KABUPATEN DAIRI

2017 ◽  
Vol 4 (2) ◽  
pp. 149-161
Author(s):  
Berton Sianturi
Keyword(s):  
Zea Mays ◽  
Dose Response ◽  
High Resistance ◽  
Block Design ◽  
Recommended Dose ◽  
Second Step ◽  
Resistance Level ◽  
Susceptible Population ◽  
Randomized Complete Block Design ◽  
Susceptible Populations

Crassocephalum crepidioides on Cornfields in Dairi Regency had been reported tobecome more difficult to control using paraquat. The objective of the research was todetermine the characteristics and the distribution of C.crepidioides resistant to paraquatin cornfields. The experiment was carried out in two steps, the first step was screeningthe population of C. crepidioides with paraquat at the recommended dose, and the secondstep, dose-response experiment for the resistance level of C. crepidioides population withdose 0, 76, 152, 304,5, 609, 1218, and 2436 g.ai /ha. In the first step experiment, paraquatdichloride was applied at 280 g.ai/ha. The treatments were arranged in a randomized blockdesign with 3 replication. The second step experiment was that the resistant populationsconfirmed in the first experiment were sprayed for their dose-response. The treatmentswere arranged in a randomized complete block design (CRBD). The results showed thatof 30 populations of C. crepidiodes, 19 populations (63.3%) were categorized to beresistant with the mortality ranging from 10.84% to 52.08%, and 11 populations (36.7%),was categorized as high resistance with mortality of 0% to 9.21%. The level ofresistance (R/S) of R-C25, R-C27, and R-C30 populations of C. crepidioides were 12,3,14,86, and 24,83 times consecutively, compared with the susceptible population. Thenumber of C. crepidioides chlorophyl leaves in susceptible populations was significantlylower than that of a resistant populations.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

Effect of Bio and Organic Fertilizers on Pumpkin's (Cucurbita pepo L.) Leave Content of N, P, and K

2020 ◽  
Vol 10 (1) ◽  
pp. 241-245
Author(s):  
Ammar Hameed Madi ◽  
Jawad A. Kamal Al-Shibani
Keyword(s):  
Cucurbita Pepo ◽  
Sandy Loam ◽  
Block Design ◽  
Organic Fertilizers ◽  
Flowering Stage ◽  
College Of Agriculture ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Loam Soil ◽  
Four Levels

This study was conducted to investigate the effect of bacterial bio-fertilization A. chroococcum and P. putide and four levels of compost (0, 1, 2, 3) tons.h-1 on the leaves content of N.P.K elements. The experiment was carried out in one of the greenhouses of the College of Agriculture - University of Al-Qadisiyah during fall season 2018-2019. It designed in accordance with the Randomized Complete Block Design (RCBD) with three replicates in sandy loam soil. The means of treatments were compared with the least significant difference (LSD) at (5)% probability level. The results present that the treatments of A. chroococcum, P. putide and compost at (3) tons.kg-1 significantly increases the leaves content of K.P.K compared to all other treatments in the flowering stage (4.970, 0.5000, and 4.930) mg.kg-1, respectively. This treatment was followed by the effect of the treatment of A. chroococcum and compost at (3) tons.kg-1, which increases the values of all traits except the leaf content of (P). Bio-fertilizer with P. putide + A. chroococcum significantly increases the leaves' content of P.

Growth and Branching Responses of Portulaca grandiflora to Foliar Applications of Chemical Growth Regulators

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 447c-447
Author(s):  
T.J. Banko ◽  
M.A. Stefani
Keyword(s):  
Growth Regulators ◽  
Growth Habit ◽  
Stem Elongation ◽  
Block Design ◽  
Shoot Elongation ◽  
Main Shoot ◽  
Randomized Complete Block Design ◽  
Portulaca Grandiflora ◽  
Prostrate Growth ◽  
Secondary Shoot

During container production of portulaca, growth of long, prostrate, sparsely branched stems makes handling of plants difficult, and reduces their commercial appeal. Growers prefer to minimize shoot elongation while increasing branching to provide a full, compact plant. The objectives of this study were to evaluate growth regulators for promotion of branching and inhibition of stem elongation. Container-grown plants ≈21 cm in diameter were treated with sprays of ProShear (benzylaminopurine) at 62.4, 125, and 250 ppm; Promalin (benzyaminopurine + gibberellins 4+7) at 125, 250, and 500 ppm; Atrimmec (dikegulac) at 250, 500, and 750 ppm; and Florel (ethephon) at 250, 500, and 750 ppm. These treatments were compared with untreated controls in a randomized complete-block design. Main shoot lengths were measured at 16, 31, and 51 days after treatment (DAT). Numbers of new shoot breaks were counted 16 DAT. The growth habit, that is, tendency to grow upright or prostrate, was also evaluated 16 DAT. The most-effective material for retarding primary shoot elongation and for stimulating secondary shoot development was ProShear. At 16 DAT, 250 ppm ProShear reduced shoot elongation by 25% compared to control plants. This treatment also increased the number of secondary shoot breaks by 143%. Promalin increased the number of new shoot breaks, but it also increased the lengths of all shoots. High rates of Florel and Promalin caused shoots to grow predominantly upright rather then prostrate. ProShear, however, caused more prostrate growth as rate increased.

Influence of Nitrogen and Potassium on Three Zoysiagrasses

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 516b-516
Author(s):  
James N. McCrimmon
Keyword(s):  
Gulf Coast ◽  
Block Design ◽  
Nutrient Content ◽  
Zoysia Japonica ◽  
Tissue Samples ◽  
Color Quality ◽  
Randomized Complete Block Design ◽  
Color Density ◽  
Minimal Research ◽  
Micronutrient Fertilizer

Zoysiagrass has great potential for use in the Gulf Coast states as a turfgrass. There has been minimal research on the nitrogen (N) and potassium (K) fertility response of zoysiagrass and the effect on turf color, quality, and nutrient content. The objective of this study was to evaluate the effects of N and K fertility on zoysiagrass. A study was conducted on three zoysiagrasses: Zoysia japonica × Z. tenuifolia Willd. ex Trin. (`Emerald'); Z. japonica Steud. (`Meyer'); and Z. matrella. The N and K treatment combinations consisted of high (H) and low (L) rates of N and K at the following levels: N levels of 454 and 227 g N/92.9 m2 per month and K levels of 454 and 227 g N/92.9 m2 per month. The treatment combinations were (N and K): HH, HL, LH, and LL and were applied in two split applications monthly from July through November. The study was a randomized complete-block design with three replications. All plots received two applications of a micronutrient fertilizer (late June and August), were irrigated as needed, and maintained at a height of 3.8 cm. Color, density, texture, uniformity, and quality were determined visually for each month. Plant tissue samples were collected (September) and analyzed for macronutrient and micronutrient contents. There were significant differences for color, density, and quality in the following months: September (color and density); October (quality); and November (color and quality). There were differences in leaf texture for all months. There were significant differences for N, magnesium (Mg), and K contents but there were no differences for any micronutrient. This study indicated that all three zoysiagrasses provided acceptable color and quality during the summer and fall, and that N and K rates affected N, K, and Mg contents in the plant.

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