80 Effects of dietary standardized ileal digestible lysine level in the nursery period and number of dietary phases in the grow-finish period on wean-to-finish growth performance of pigs

Abstract The objective was to determine if feeding differing levels of dietary standardized ileal digestible lysine (SID Lys) during the nursery phase influenced the growth performance response to the number of dietary phases fed in the grow-finish period. A split-plot design was used with a 3×2 factorial arrangement of the following treatments: 1) SID Lys level nursery period: Control (SID Lys at requirement) vs. Restricted (0.2 g/kg SID Lys below Control) vs. Excess (0.1 g/kg SID Lys above Control; 2) Number of Dietary Phases in grow-finish: 3 vs. 5. Diets were formulated to meet NRC (2012) requirements, except for SID Lys during the nursery period. The study was carried out over the nursery [weaning (21±2 d; 5.8 ± 0.05 kg BW) to wk 9 post-weaning] and grow-finish [wk 9 to 19 post-weaning (112 ± 3.7 kg BW)] periods using 4,356 pigs housed in single-sex groups of 44 pigs, at a floor space of 0.30 m2/pig and 0.62 m2/pig in nursery and grow-finish periods, respectively. Data were analyzed using PROC MIXED of SAS; pen was the experimental unit. The model included fixed effects of SID Lys level (main plot), Number of Dietary Phases (split plot), their interaction, and random effects of block and block by SID Lys level interaction. There were no treatment interactions (P > 0.05). The Restricted Lys treatment reduced (P < 0.05) ADG and G:F in the nursery period compared to other treatments, but had no effect on these measurements in the grow-finish or wean-to-finish periods. There was no effect (P > 0.05) of the number of dietary phases on growth performance in grow-finish. In conclusion, feeding low levels of Lys in the nursery reduced nursery but not wean-to-finish growth performance; reducing the number of dietary phases in grow-finish from 5 to 3 had no impact on growth performance.

Download Full-text

77 The effect of naturally occurring levels of multiple mycotoxins on growth performance and carcass parameters of grow-finish pigs

Journal of Animal Science ◽

10.1093/jas/skaa054.099 ◽

2020 ◽

Vol 98 (Supplement_3) ◽

pp. 54-55

Author(s):

Leigh Ruckman ◽

Stacie Gould ◽

John Patience

Keyword(s):

Growth Performance ◽

Economic Impact ◽

Environmental Conditions ◽

Fixed Effects ◽

Control Diet ◽

Naturally Occurring ◽

Carcass Parameters ◽

Low Levels ◽

Dietary Treatments ◽

Over Time

Abstract Mycotoxins may not be an issue every year, but the proper environmental conditions can cause a spike in contaminated grains and cause severe economic impact on pork producers. The objective of this study was to determine the effect of naturally occurring infections of deoxynivalenol, zearalenone and fumonisins (DZF) on growth performance and carcass parameters in grow/finish pigs. One hundred pigs (BW 34.0 ± 0.9 kg; L337 × Camborough, PIC, Hendersonville, TN) were randomly assigned to 1 of 2 dietary treatments with 10 split-sex pens/treatment. The control diet (CTL) contained low levels of DZF and the CTL+DFZ diet contained high levels of DZF. Diets were fed in 4 phases over the 126-d experiment period. The CTL diet contained 1.6, 1.6, 1.8 and 1.2 mg deoxynivalenol/kg and CTL+DZF contained 9.2, 6.9, 5.8 and 3.8 mg deoxynivalenol/kg in the 4 diet phases, respectively. The CTL contained 0.30, 0.32, 0.51 and 0.32 mg zearalenone/kg and 0.7, 0.8, 0.8 and 0.9 mg total fumonisins/kg; CTL+DFZ contained 0.59, 0.72, 0.86 and 0.57 mg zearalenone/kg and 1.0, 1.1, 1.2 and 0.9 mg total fumonisins/kg for phases one through four, respectively. Data were analyzed using PROC MIXED of SAS (9.4) with treatment, sex, and their interaction as fixed effects. Compared to CTL, feeding CTL+DFZ decreased final BW (130.3 vs 120.5 kg; P< 0.001), ADG (0.95 vs 0.79 kg/d; P< 0.001), ADFI (2.73 vs 2.49 kg/d; P=0.016), and G:F (0.35 vs 0.32; P=0.043). Feeding CTL+DFZ decreased HCW (92.3 vs 89.4 kg; P=0.024) and increased dressing percentage (70.9 vs 74.3%; P=0.009) and tended to reduce loin depth (7.0 vs 6.8 cm; P=0.057) compared to CTL. Diet did not affect backfat depth or lean percentage (P >0.10). In conclusion, diets naturally contaminated with multiple mycotoxins reduced growth performance and adversely affected carcass parameters; pigs did not adapt over time to the mycotoxins.

Download Full-text

191 Effects of injectable vitamin C at weaning and prior to transit on growth performance and immune function of beef steers

Journal of Animal Science ◽

10.1093/jas/skaa278.278 ◽

2020 ◽

Vol 98 (Supplement_4) ◽

pp. 152-153

Author(s):

Aubree M Beenken ◽

Erin L Deters ◽

Colten W Dornbach ◽

Stephanie L Hansen ◽

Joshua C McCann ◽

...

Keyword(s):

Vitamin C ◽

Growth Performance ◽

Repeated Measures ◽

Fixed Effects ◽

Average Daily Gain ◽

Experimental Unit ◽

Beef Steers ◽

Diarrhea Virus ◽

Plasma Ascorbate ◽

Antibody Titers

Abstract Ninety-one early-weaned (65 ± 11 d) Angus steers (92 ± 4 kg) were blocked by age to a 2 × 2 factorial examining effects of injectable vitamin C (VC) at weaning and/or prior to transport to the feedlot on antibody titers and growth performance. Injections (20 mL/steer) of VC (250 mg sodium ascorbate/mL) or saline (SAL) were given at time of weaning on d 0 (WEAN) and/or prior to a 6 hr trucking event to a feedlot on d 49 (TRANS). Steers were given booster vaccinations on d 0. Steers were weighed on d 0, 1, 14, 48, 49, 64, 106, and 107. Blood was collected (12 steers/treatment) on d 0, 1, 2, 14, 49 (pre- and post-transit), 50, and 51. Data were analyzed via Proc-Mixed of SAS (experimental unit = steer; n = 22–23/treatment) with fixed effects of block, WEAN, TRANS, and WEAN × TRANS. Plasma ascorbate concentrations for weaning (d 0, 1, and 2) and transit (d 49-pre-trucking, 49-post-trucking, 50, and 51) were analyzed as repeated measures (repeated effect = day). Plasma ascorbate concentrations were greater on d 1 and 2 for steers that received VC at weaning (VC = 19.6, SAL = 8.8 ± 1.26 µM; WEAN × day P < 0.01). Similarly, ascorbate concentrations were greater on d 49 post-trucking, 50, and 51 for steers that received VC pre-transit (TRANS × day P = 0.01). Treatments did not affect bodyweight or average daily gain throughout the trial (P > 0.32). There were no effects of treatment on serum Bovine Viral Diarrhea Virus type 2 antibody titers on d 14 or 51 (P > 0.33). An injection of VC administered to early weaned beef steers at weaning or pre-transit increases plasma ascorbate concentrations but does not improve growth performance or antibody response to vaccination booster.

Download Full-text

Effect of varieties and weeding regimes on weed and performance of

South Asian Journal of Experimental Biology ◽

10.38150/sajeb.1(3).p121-130 ◽

2011 ◽

Vol 1 (3) ◽

pp. 121-130

Author(s):

U. Ismaila ◽

M. G. Kolo ◽

A. U. Gbanguba

Keyword(s):

Oryza Sativa ◽

Active Ingredient ◽

Oryza Sativa L ◽

Weed Suppression ◽

Dichlorophenoxyacetic Acid ◽

Aerobic Rice ◽

Split Plot ◽

Main Plot ◽

And Performance ◽

Plot Design

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intraÃ¢â‚¬Âspecific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intraÃ¢â‚¬Âspecific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.

Download Full-text

Critical time for weed removal in dicamba tolerant soybean as influenced by pre emergence herbicides

Acta herbologica ◽

10.5937/actaherb2001055j ◽

2020 ◽

Vol 29 (1) ◽

pp. 55-62

Author(s):

Darko Jovanović ◽

Ivan Cuvaca ◽

Jon Scott ◽

Stevan Knežević

Keyword(s):

Field Experiment ◽

Growth Stage ◽

Critical Time ◽

Split Plot ◽

Main Plot ◽

Plot Design ◽

Weed Removal

Field experiment was conducted in 2019 at Haskell Agriculture Laboratory, Concord, NE, USA. Goal of the study was to test the influence of PRE-EM herbicides on the Critical Time for Weed Removal (CTWR) in dicamba-tolerant soybean. The study was arranged in a split-plot design which consisted of four herbicide regimes as main plot treatments and seven weed removal timings as subplot treatments, with four replications. The herbicide regimes included: (1) no PRE and glyphosate, (2) acetochlor and dicamba as PRE and glyphosate as POST, (3) acetochlor and dicamba as PRE and glyphosate and dicamba as POST, and (4) acetochlor and fomesafen as PRE and acetochlor, glyphosate and dicamba as POST. The five weed removal times included the V1, V3, V6, R2 and R5, and there were also weedy and weed-free season long plots. By utilizing herbicide regimes, the CTWR was delayed to 632 GDD (until V4 soybean growth stage, 28 days after emergence) for acetochlor and dicamba as PRE and glyphosate as POST, 861 GDD (until V6 soybean growth stage, 32 days after emergence) for acetochlor and dicamba as PRE and glyphosate and dicamba as POST, and 1060 GDD (until R1 soybean growth stage, 42 days after emergence) for acetochlor and fomesafen as PRE and acetochlor, glyphosate and dicamba as POST.

Download Full-text

PERTUMBUHAN EMPAT KLON HARAPAN VANILI (Vanilla planifolia) PADA UMUR FISIOLOGIS DAN POSISI RUAS YANG BERBEDA

Jurnal Penelitian Tanaman Industri ◽

10.21082/jlittri.v17n1.2011.1-5 ◽

2020 ◽

Vol 17 (1) ◽

pp. 1

Author(s):

SUKARMAN SUKARMAN

Keyword(s):

Plant Growth ◽

Vegetative Propagation ◽

Experimental Unit ◽

Vanilla Planifolia ◽

Operational Procedure ◽

Physiological Stage ◽

Split Plot ◽

Germination And Growth ◽

Plot Design ◽

Research Institute

ABSTRAKPenelitian dilakukan di Balai Penelitian Tanaman Rempah dan Obat(Balittro) dan Balai Penelitian Tanaman Rempah dan Aneka TanamanIndustri (Balittri) dari bulan Januari 2006 sampai Desember 2007.Penelitian bertujuan untuk mengevaluasi pengaruh posisi ruas terhadapdaya tumbuh dan pertumbuhan benih empat klon harapan vanili, sebagaisalah satu landasan penetapan standar prosedur operasional (SPO)perbanyakan benih vanili secara vegetatif. Penelitian terdiri atas duakegiatan, yaitu: (1) Pengaruh umur fisiologis dan posisi ruas yang berbedaterhadap daya tumbuh setek dan pertumbuhan vanili klon 1 dan 2, dan (2)Pengaruh posisi ruas terhadap daya tumbuh setek dan pertumbuhanbenih/setek vanili klon 3 dan klon 4. Percobaan pertama disusun dalampola faktorial 2 x 2 x 3 dan dilaksanakan dalam rancangan petak terbagidua kali, dengan 3 ulangan dan 20 setek tiap satuan percobaan. Petakutama adalah dua klon vanili, yaitu klon 1 dan 2, dan anak petak adalah 2umur fisiologis sulur, yaitu (1) sulur umur 6 bulan, dan (2) sulur umur 12bulan setelah pemangkasan. Anak-anak petak adalah setek pada limaposisi ruas, yaitu 1) pertama, 2) kedua, 3) ketiga, 4) keempat, dan 5) ke-lima. Percobaan kedua menggunakan rancangan petak terbagi yangdiulang 3 kali dengan 20 sampel tanaman setiap perlakuan dan ulangan.Petak utama adalah dua nomor klon harapan vanili yaitu klon 3 dan 4,anak petak adalah setek pada 10 posisi ruas, yaitu 1) pertama, 2) kedua, 3)ketiga, 4) keempat, 5) kelima, 6) keenam, 7) ketujuh, 8) kedelapan, 9) ke-sembilan, dan 10) kesepuluh. Posisi ruas yang digunakan dalam keduapercobaan tersebut dihitung dari bagian atas sulur, setelah 2 ruas daripucuk dibuang. Peubah yang diamati meliputi daya tumbuh setek,pertumbuhan tanaman (tinggi tanaman/panjang sulur, jumlah dan panjangruas, serta jumlah dan ukuran daun. Pertumbuhan vanili tidak dipengaruhioleh jenis klon serta umur fisiologis sulur, tetapi dipengaruhi oleh posisiruas. Setek dari ruas kedua sampai ketujuh mempunyai pertumbuhan yangterbaik, dengan daya tumbuh berturut-turut 87,47; 84,58; 81,25; 85,00;81,67; dan 83,83%. Disimpulkan bahwa perbanyakan tanaman vanili dapatmenggunakan setek l ruas yaitu dari ruas kedua sampai ruas ketujuh.Kata kunci: Vanilla planifolia, umur fisiologis, sulur, posisi ruas, dayatumbuh, pertumbuhanABSTRACTGrowth of Four Promissing Vanila Clones (Vanillaplanifolia) at Different Physiological Stages and Inter-nodes PositionsThe experiment was conducted at the Indonesian Medicinal andAromatic Crops Research Institute (IMACRI) and Indonesian Spice andIndustrial Crops Research Institute (ISICRI), from January 2006 untilDecember 2007. This experiment aimed at evaluating the effect ofphysiological stages and internodes positions on the cutting germinationpercentage and growth of four vanilla clones, in terms of establishingstandard operational procedure (SOP) of vegetative propagation of vanilla.The research consisted of 2 experiments, i.e. (1) effect of physiologicalstages and internodes positions on the cutting germination and growth ofvanilla clon 1 and 2, and (2) effect of internodes positions on thegermination and growth of vanilla clone 3 and 4. The first experimenttested 3 treatment factors and was arranged in 2 x 2 x 3 factorial pattern insplit-split plot design with 3 replicates. Twenty cuttings were planted ineach experimental unit. The main plots were two vanilla clones (clone 1and 2), and sub plots were two different physiological stages of internodes,i.e. (1) 6 and (2) 12 months old after cutting their main stem. While thesub-sub plots were cuttings from five internodes positions : (1) first, (2)second, (3) third, (4) fourth, and (5) fifth internodes. The secondexperiment was arranged in factorial split plot design with 3 replicates.The main plots were 2 different vanilla clones, i.e. (1) clone 3 and 4, andsub-plots were cuttings from 10 different internodes positions, i.e. 1) first,(2) second, (3) third, (4) fourth, (5) fifth, 6) sixth, 7) seventh, 8) eighth, 9)ninth, and 10) tenth internodes. Variables observed were germination ofcuttings and plant growth (plant height, number and length of internodes,number and size of leaves). The results indicated that growth of vanillawas not affected by clones and physiological stage of cuttings, but it wassignificantly influenced by internodes positions. Cuttings originated fromsecond until seventh internodes positions resulted in the best growth ofvanilla plant, with germination rates of 84.58; 81.25; 85.00; 81.67; and83.83 %, respectively. It could be concluded that cuttings from seconduntil seventh internodes positions were recommended for plantingmaterials of vanilla.Key words: Vanilla planifolia, physiological stages, internodes positions,germination, growth

Download Full-text

PENGARUH FREKUENSI DAN PERIODE PEMBERIAN PAKAN TERHADAP POTONGAN KOMERSIAL KARKAS AYAM BURAS SUPER

Majalah Ilmiah Peternakan ◽

10.24843/mip.2017.v20.i03.p06 ◽

2017 ◽

Vol 20 (3) ◽

pp. 118

Author(s):

OKTAWANTARI E. F. ◽

E. SUPRIJATNA ◽

W. SARENGAT

Keyword(s):

Split Plot ◽

Main Plot ◽

Plot Design

Penelitian ini bertujuan untuk mengetahui pengaruh frekuensi dan periode pemberian pakan terhadap potongankomersial karkas. Materi yang digunakan yaitu anak ayam buras super 252 ekor (unsexed) umur sehari dengan bobotawal 37,88 ±1,89 gram. Kandang digunakan berupa tipe litter yang dibagi menjadi 36 unit dengan masing-masingunit berisi 7 ekor ayam. Rancangan percobaan yang digunakan adalah Split Plot Design dengan 4 ulangan yangterdiri dari main plot yaitu 3 taraf frekuensi pemberian pakan dan sub plot yaitu 3 taraf periode pemberian pakan.Data yang diperoleh dianalisis ragam dengan uji F taraf 5%. Hasil penelitian menunjukkan bahwa interaksi antarafrekuensi dengan periode pemberian pakan tidak berpengaruh nyata (p>0,05), dan masing-masing perlakuan tidakmenunjukan pengaruh yang nyata (p>0,05) terhadap potongan komersial ayam buras super. Kesimpulan daripenelitian ini adalah meskipun tidak ada pengaruh perlakuan terhadap potongan komersial karkas tetapi frekuensi1 kali dan periode 14 jam (F1P3) merupakan perlakuan paling efisien untuk diaplikasikan.

Download Full-text

KADAR AIR, pH DAN TOTAL MIKROBA DAGING AYAM YANG DITAMBAHKAN KUNYIT PUTIH (Curcuma mangga Val.)

ZOOTEC ◽

10.35792/zot.36.2.2016.12567 ◽

2016 ◽

Vol 36 (2) ◽

pp. 405

Author(s):

John Wala ◽

Tiltje Ransaleleh ◽

Indyah Wahyuni ◽

Merri Rotinsulu

Keyword(s):

Water Content ◽

Cold Storage ◽

Storage Time ◽

Chicken Meat ◽

Randomized Design ◽

Split Plot ◽

Main Plot ◽

Completely Randomized Design ◽

Plot Design

THE EFFECT OF WHITE TURMERIC (Curcuma mangga Val.) ADDITION ON CHICKEN MEAT AGAINST WATER CONTENT, pH AND MICROORGANISM NUMBERS. The purpose of this research was to determine the effect of the addition of white turmeric (Curcuma manggaVal.) on chicken meat at cold storage (4oC). This research used Split Plot Design with 2 treatment factors based on completely randomized design. The Main Plot contains of 4 treatments (A0 = without storage, A1 = 3 days storage, A2 = 6 days storage, A3 = 9 days storage) and the Sub Plot contains of 4 treatments (B0 = without white turmeric, B1 = 4% grating of white turmeric, B2 = 8% grating of white turmeric, B3 = 12% grating of white turmeric). The variable that observed are water content, pH and microorganism number. The result showed that the addition of white turmeric was not significant affected (P > 0.05) against water contentof chicken meat, however it was highly significant affected (P < 0.01) against pH and microorganism numbers of chicken meat. Storage time was highly significant affected (P <0.01) against water content, pH and microorganism numbers of chicken meat. The interaction between both of treatment factors was given highly significant affected (P < 0.01) against water content, pH and microorganism numbers of chicken meat. As a conclusion, the addition of white turmeric on chicken meat was not affected against water content, however it can decrease pH and obstruct microorganism activity. Keywords : chicken meat, white turmeric, pH, water content, microorganism numbers

Download Full-text

Pemanfaatan Sluri Gas Bio yang Diperkaya Urin Kambing Fermentasi Terhadap Kecepatan Tumbuh, Produksi Daun dan Komposisi Nutrisi Pada Indigofera Zolliengeriana

Talenta Conference Series Science and Technology (ST) ◽

10.32734/st.v1i2.297 ◽

2018 ◽

Vol 1 (2) ◽

pp. 188-193

Author(s):

Rudini Arif ◽

N Ginting ◽

I Sembiring

Keyword(s):

Animal Feed ◽

Nutrient Composition ◽

Growth Speed ◽

Research Station ◽

Leaf Production ◽

Split Plot ◽

Main Plot ◽

Indigofera Zollingeriana ◽

North Sumatra ◽

Plot Design

Karakteristik pakan ternak adalah tersedia dalam jumlah besar, murah dengan kualitas baik. Leguminosa seperti Indigofera zollingeriana adalah salah satu tanaman yang memenuhi karakteristik tersebut. Penelitian ini bertujuan untuk mengetahui pemanfaatan sluri gas bio yang diperkaya urin kambing fermentasi terhadap kecepatan tumbuh, produksi daun dan komposisi nutrisi pada Indigofera zollingeriana. Penelitian dilaksanakan di Lahan Loka Penelitian Kambing Potong Sei Putih, Kecamatan Galang Lubuk Pakam Sumatera Utara, pada bulan Maret sampai dengan Agustus 2015 menggunakan 24 buah bibit tanaman Indigofera zollingeriana. Rancangan yang dipakai dalam penelitian ini adalah rancangan split plot design (petak terbagi) dengan tiga dosis pemupukan yang berbeda pada petak utama yaitu R0 (75 ml/plot), R1 (150 ml/plot) dan R2 (225 ml/plot) dan dua jenis pupuk varisi sluri gas bio yang berbeda yaitu S1 (sluri) dan S2 (sluri yang diperkaya dengan urin kambing fermentasi) dengan 4 ulangan. Parameter yang diteliti adalah tinggi tanaman, produksi daun dan komposisi nutrisi. Hasil penelitian menunjukkan bahwa dosis pemupukan sluri dan sluri diperkaya urin kambing fermentasi tidak berpengaruh terhadap kecepatan tumbuh, produksi daun dan lemak kasar. Tidak terdapat perbedaan nyata antara jenis pupuk variasi sluri gas bio pada kecepatan tumbuh, namun terdapat pengaruh yang nyata (P<0,05) pada produksi daun dan komposisi nutrisi. Kesimpulan dari penelitian ini adalah penggunaan sluri dengan diperkaya urin kambing meningkatkan produktivitas Indigofera zolleingeriana.. Characteristics of animal feed are its availability in large quantities, low price, and good quality. Legumes such as Indigofera zollingeriana are one of the plants that meet these characteristics. This study aimed to determine the utilization of bio-gas slurry enriched with fermented goat urine on growth speed, leaf production and nutrient composition in Indigofera zollingeriana. The research was conducted at the Sei Putih Goat Cut Research Station, North Sumatra, Galang Lubuk Pakam District, from March to August 2015 using 24 Indigofera zollingeriana seedlings. The design used in this study was a split plot design with three different fertilization doses in the main plot, namely R0 (75 ml/plot), R1 (150 ml/plot) and R2 (225 ml/plot) and two different types of bio-gas slurry fertilizers namely S1 (slurry) and S2 (slurry enriched with fermented goat urine) with 4 replications. The parameters studied were plant height, leaf production and nutrient composition. The results showed that the dose of fertilizing slurry and slurry enriched with fermented goat urine did not affect growth speed, leaf production and crude fat. There were no significant differences between the types of bio gas slurry fertilizers at growth speed, but there was a significant effect (P <0.05) on leaf production and nutrient composition. The conclusion of this study was the use of slurry with enriched goat urine increased the productivity of Indigofera zollingeriana.

Download Full-text

Pengaruh Frekuensi Pemberian Pakan dan Awal Pemberian Pakan terhadap Performa Ayam Buras Super

Jurnal Sain Peternakan Indonesia ◽

10.31186/jspi.id.12.2.152-164 ◽

2017 ◽

Vol 12 (2) ◽

pp. 152-164

Author(s):

E. Rahmawati ◽

E. Suprijatna ◽

D. Sunarti

Keyword(s):

Split Plot ◽

Main Plot ◽

Plot Design

Penelitian ini bertujuan untuk mengetahui pengaruh interaksi frekuensi pemberian pakan dengan awal pemberian pakan terhadap performa ayam buras super. Materi yang digunakan adalah 252 ekor anak ayam buras super unsex umur 1 hari dengan rata-rata bobot badan awal 37,88 ± 1,89 g (CV = 5,02%). Pakan yang digunakan adalah pakan komersial. Rancangan percobaan yang digunakan adalah Split Plot Design dengan main plot yaitu 3 taraf frekuensi pemberian pakan (F1 = frekuensi pemberian pakan 1 kali, F2 = frekuensi pemberian pakan 2 kali, F3 = frekuensi pemberian pakan 3 kali) dan sub plot yaitu 3 taraf awal pemberian pakan (A1 = awal pemberian pakan pukul 04:00 WIB, A2 = awal pemberian pakan pukul 06:00 WIB, A3 = awal pemberian pakan pukul 08:00 WIB) dalam 4 ulangan sehingga terdapat 36 unit percobaan, tiap unit percobaan terdiri dari 7 ekor ayam. Data yang diperoleh dianalisis menggunakan analisis ragam dan uji F pada taraf 5%. Hasil penelitian menunjukkan bahwa pengaruh interaksi antara frekuensi pemberian pakan dengan awal pemberian pakan tidak nyata (p>0,05), demikin pula masing-masing perlakuan tidak menimbulkan pengaruh yang nyata (p>0,05) terhadap performa ayam buras super, tetapi jika dilihat dari keuntungan ekonomis berdasarkan selisih antara total penjualan dan biaya pakan, kombinasi perlakuan F3A1 (frekuensi pemberian pakan 3 kali dengan awal pemberian pakan pukul 04:00 WIB) menunjukkan hasil terbaik. Kata kunci : ayam buras super, performa, pemberian pakan, frekuensi, awal

Download Full-text

Produksi Benih Kentang G0 Pada Berbagai Volume dan Frekuensi Fertigasi dengan Sistem Irigasi Tetes (Production of G0 Potato Seed on Many Fertigation Volumes and Frequencies on Drip Irrigation)

Jurnal Hortikultura ◽

10.21082/jhort.v29n1.2019.p53-60 ◽

2019 ◽

Vol 29 (1) ◽

pp. 53

Author(s):

Meksy Dianawati ◽

Hilda Farida ◽

Sri Muhartini

Keyword(s):

Seed Production ◽

Drip Irrigation ◽

Block Design ◽

Potato Production ◽

Potato Seed ◽

Split Plot ◽

Main Plot ◽

Four Levels ◽

Drip Fertigation ◽

Plot Design

Kentang merupakan sayuran yang memiliki prospek untuk mendukung program diversifikasi pangan. Akan tetapi saat ini produksi di dalam negeri masih rendah akibat penggunaan benih yang kurang bermutu. Sistem irigasi tetes berpeluang untuk diterapkan pada produksi benih kentang G0. Penelitian bertujuan untuk mengetahui pengaruh frekuensi dan volume fertigasi terhadap produksi benih G0 kentang pada sistem irigasi tetes. Penelitian dilaksanakan sejak bulan Mei sampai dengan September 2016 di Rumah Kassa Desa Cikahuripan, Lembang, Bandung Barat, Jawa Barat dengan ketinggian 1.200 m dpl. Percobaan menggunakan rancangan petak terpisah (split plot design) dengan rancangan acak kelompok lengkap dan tiga ulangan. Sebagai petak utama adalah frekuensi fertigasi sebanyak 3, 5, dan 7 kali. Sebagai anak petak adalah volume fertigasi (ml) setiap aplikasi, yaitu 100, 200, 300, dan 400. Hasil penelitian menunjukkan tidak terjadi interaksi antara perlakuan frekuensi dan volume fertigasi terhadap semua peubah pengamatan. Frekuensi fertigasi terbaik terhadap bobot ubi per tanaman umur 100 HST adalah lima kali, yaitu jam 7, 10, 12, 14, dan 16. Volume fertigasi terbaik terhadap jumlah ubi ukuran besar umur 100 HST adalah 300 ml per aplikasi per polibag. Volume dan frekuensi fertigasi terbaik ini diharapkan tidak saja meningkatkan produksi benih, tetapi juga keuntungan usahatani yang diperoleh. Perlu dilakukan penelitian lebih lanjut untuk menginduksi pengumbian dengan mengalihkan ukuran ubi menjadi peningkatan jumlah ubi sebagai tujuan produksi benih G0.KeywordsSolanum tuberosum L.; Irigasi tetes; Fertigasi; Frekuensi; VolumeAbstractPotato is one of vegetables that can be used as an alternative to support food diversification programs. But the potato production domestically is still low because of low quality seed. One of the potato seed technologies that can be developed is arragement of fertigation volumes and frequencies on drip fertigation. The objective of this research was to determine the best fertigation volume and frequency in G0 potato seed production in drip irrigation. This research was conducted from May to September 2016 at Screen House Cikahuripan Village, Lembang, Bandung on 1,200 m asl. The treatments were arranged in split plot design with randomized complete block design and three replications. The main plot was fertigation frequency which was consisted of three levels; 3, 5, and 7 times per day. The subplot was fertigation volume which was consisted of four levels; 100, 200, 300, and 400 ml per aplication. The result showed there was no interaction between fertigation frequency and volume on all observation. The best fertigation frequency on tuber weight per plant at 100 day after planting was five times, i.e. 7, 10, 12, 14, and 16 o’clock. The best fertigation volume on number of big tuber at 100 day after planting was 300 ml per application. The best fertigation volume and frequency will increase not only seed production, but also profit of bussiness. Next research will be done to induction tuberization by transfering measurement of tuber to increase the amount of tuber as goal of production of G0 potato seed.

Download Full-text