scholarly journals Dampak Letak Buah Pada Pohon dan Perlakuan Benih Terhadap Perkecambahan Benih Kakao (Theobroma cacao L.)

Jurnal Agrium ◽  
2018 ◽  
Vol 14 (1) ◽  
pp. 1
Author(s):  
Ahmad Fauzi ◽  
Faisal Faisal ◽  
Muhammad Rafli
Keyword(s):  
Growth Rate ◽  
Maximum Growth ◽  
Growth Potential ◽  
Cocoa Bean ◽  
Potential Growth ◽  
Randomized Design ◽  
Vigor Index ◽  
Seed Growth ◽  
Two Factors ◽  
Germination Vigor

This study aims to determine the effect of the location of fruit on trees and treatment on seeds to germination cocoa. This study was conducted in Tumpok Teungoh Village, Banda Sakti Sub-district, Lhokseumawe City, August to September 2016. This study used Completely Randomized Design with 3 replications. Two factors studied were (a) the location of the fruit on the tree where L1 = The location of the fruit on the stem and L2 = The location of the fruit on the branch. (b) treatment factor in seeds where P1 = Without pulp clearance, P2 = Pulp cleansing. The parameters observed were potential growth, germination, vigor index, growth rate and synchronization of cocoa seed growth. The result of variance analysis showed that the fruit difference treatment did not affect the observation of maximum growth potential and cocoa seed germination, but it influenced the observation of vigor index, growth rate and synchronization of cocoa seed growth. Treatment of pulp cleansing did not affect the observation of growth potential, germination, growth rate and synchronization of seed growth, but pulp cleansing treatment had an effect on observation of vigor index of cocoa seed. There was no interaction between fruit difference treatment and treatment of cocoa bean pulp cleansing of all observed parameters

scholarly journals Karakter Habitus dan Viabilitas Biji Tanaman Biduri (Calotropis gigantea) Aksesi Lombok Tengah Bagian Selatan

2021 ◽  
Vol 7 (1) ◽  
pp. 114-133
Author(s):  
Yuliani Ahmad ◽  
M. Taufik Fauzi ◽  
Bambang Budi Santoso
Keyword(s):  
Fruit Size ◽  
Seed Viability ◽  
Growth Potential ◽  
Calotropis Gigantea ◽  
Survey Techniques ◽  
South Central ◽  
Randomized Design ◽  
Panicle Number ◽  
Seed Growth ◽  
Two Factors

This study aims to describe the morphological character and seed growth potential of biduri (Calotropis gigantea) accession growing in the tourist area of South Central Lombok (Kuta Mandalika, Tanjung Aan, and Seger), and was carried out during February-August 2020. The method used was descriptive observative with survey techniques and sampling by purposive sampling based on the population of biduri. The seed growth experiment used a completely randomized design in a greenhouse consisting of two factors, namely the type of substrate and accession, which was repeated three times, so that there were 18 experimental units. The results shows that the Kuta Mandalika Biduri accession was showed superiority in the number of fruit characters per panicle. Tanjung Aan accessions excel in branching characters (primary and secondary branches), number of panicles per tree, number of flowers per panicle, number of fruits per tree and fruit size. Meanwhile, Seger accessions were superior in terms of plant height, seed size and weight of 100 seeds. There were no character differences in seed viability of the three accessions. The closest genetic-relationship occurs in the Kuta Mandalika accession of plot 2 sample 2 with the Kuta Mandalika accession of plot 3 sample 1 marked with a coefficient value of 1.00. Meanwhile, the furthest relationship was found in the Kuta Mandalika accession of plot 1 sample 1 with Tanjung Aan accession of plot 2 sample 2 marked with a coefficient value of 33.932. 

scholarly journals KERAGAMAN VIABILITAS BENIH 20 GENOTIPE PEPAYA (Carica papaya L.)

2017 ◽  
Vol 8 (1) ◽  
pp. 23
Author(s):  
Noflindawati Noflindawati ◽  
Tri Budiyanti ◽  
Dewi Fatria
Keyword(s):  
Seed Quality ◽  
Block Design ◽  
Maximum Growth ◽  
Growth Potential ◽  
Tropical Fruit ◽  
Randomized Block Design ◽  
High Viability ◽  
Vigor Index ◽  
Germination Vigor

Germination  problems in the commerce in general are the seeds will experience a period save on condition of sub optium.The seeds that have high viability and vigor which is expected to be passed on to seed derivatives that are genetically seed quality can be maintained. The study aims to determine the diversity of physiological seed quality of 20 genotypes of papaya collection Tropical Fruit Research Institute. Research conducted at the KP Sumani Balitbu Tropika 2015. Materials: 20 genotype papaya seeds. Research using a randomized block design with three replications treatment of 20 genotypes of papaya. Results of the study showed germination of 20 genotypes of papaya tested ranged from 33-93%, vigor index among 11-81%, the maximum growth potential of among 16-100%, and the plant fresh weight ranges from 0.5 - 15 g. Genetic diversity germination, the seeds of papaya is very high. Characters germination, vigor index and wet weights, the character is inherited as too high the heritability

scholarly journals PENGARUH PERLAKUAN SUHU DAN BEBERAPA GENOTIPE TERHADAP VIABILITAS DAN VIGOR BENIH KUBIS BUNGA (BRASSICA OLERACEA VAR. BOTRYTIS L.) PADA DATARAN RENDAH

MEDIAGRO ◽  
2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Lestari Maulana ◽  
Elia Azizah ◽  
Winda Rianti ◽  
Sugiarto Sugiarto
Keyword(s):  
Room Temperature ◽  
Dry Weight ◽  
Maximum Growth ◽  
Temperature Treatment ◽  
Growth Potential ◽  
F1 Hybrid ◽  
Randomized Design ◽  
Vigor Index ◽  
Before And After ◽  
Refrigerator Temperature

The aim of this study was to obtain the best temperature on several genotypes so as to increase the best viability and vigour of cauliflower seeds in the lowlands. The research was conducted at the Laboratory Agronomy, OPT and Soil Biotechnology Faculty of Agriculture, Singaperbangsa Karawang University. The research method used was an experimental method with a two-factor completely randomized design (CRD). The first factor is temperature which consists of room temperature without air conditioning (P0), air-conditioned room temperature (P1) and refrigerator temperature (P2). The second factor is genotypes consisting of Viola (B1), Tegar 45 (B2), Snow Waltz (B3), Jayanti (B4), Giga (B5), Snow White (B6), Diamond (B7), Orient (B8). , Roo So 45 (B9), Forum (B10), Bima (B11), F1 Hybrid (B12) and Arjuna (B13). Each treatment was repeated 2 times so that 78 experiments were obtained and 2 times planting (before and after storage). The results of the pre-storage experiment showed that there was no interaction between temperature treatment and several genotypes, but in the post-storage experiment, there were an interaction with the parameters of germination, concurrency of growth, vigor index and maximum growth potential, while for parameters of moisture content, normal germinated dry weight and length of sprouts. indicates there is no interaction. The best treatment was room temperature without AC genotype Roo So 45 (P0B9). Keywords: Cabbage flower, genotype, temperature, , viability, vigour.

scholarly journals Pengaruh konsentrasi auksin dalam hydropriming benih cabai yang berbeda tingkat kadaluarsa terhadap viabilitas benih

2018 ◽  
Vol 3 (4) ◽  
pp. 159-167
Author(s):  
Belangie Tuahte Gundala ◽  
Trisda Kurniawan ◽  
Halimursyadah Halimursyadah
Keyword(s):  
Seed Viability ◽  
Maximum Growth ◽  
Test Method ◽  
Growth Potential ◽  
Paper Test ◽  
Randomized Design ◽  
Vigor Index ◽  
Treated Seed ◽  
Unit Unit ◽  
Banda Aceh

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan konsentrasi auksin dalam hydropriming dan tingkat kadaluarsa serta interaksi keduanya terhadap viabilitas benih cabai kadaluarsa. Penelitian ini dilaksanakaan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan Maret sampai Juni 2018. Unit-unit penelitian disusun berdasarkan Rancangan Acak Lengkap pola faktorial 4x3 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah perendaman dalam larutan auksin dengan konsentrasi : 0, 2, 4, dan 6 g L-1 dan faktor kedua adalah tingkat kadaluarsa dengan 3 taraf yaitu 4, 8 dan 12 bulan. Benih yang telah diperlakukan dikecambahkan dengan metode Uji Diatas Kertas. Hasil penelitian menunjukkan bahwa perlakuan konsentrasi auksin berpengaruh sangat nyata terhadap tolok ukur potensi tumbuh maksimum, indeks vigor dan kecepatan tumbuh relatif, berpengaruh nyata pada tolok ukur daya berkecambah dan keserempakan tumbuh. Tingkat Kadaluarsa berpengaruh sangat nyata terhadap tolok ukur potensi tumbuh maksimum dan daya berkecambah. Perlakuan konsentrasi auksin  2 g L-1 dengan tingkat kadaluarsa 4 bulan merupakan kombinasi perlakuan terbaik berdasarkan tolok ukur potensi tumbuh maksimum (97,33%).The Effect of Auxin Concentrations in Hydropriming and Levels of Expired Chilli Seed to Seed ViabilityAbstract. The purposes of this research were to know the effect of auxin concentrations in hydropriming and levels of seed expired and interaction between them to chilli seed viability. This research was conducted at the Laboratory of Seed Science and Technology Department of Agrotechnology Faculty of Agriculture, Syiah Kuala University, Banda Aceh from March to June 2018. Research units were arranged based on factorial Completely Randomized Design 4x3 with 3 replicates, continued with Honesty Significant Different on significant F-test results. The first factor was immersion in auxin solution with concentration: 0, 2, 4, and 6 g L-1 and the second factor was expired level with 3 levels 4, 8 and 12 months. Treated seed were planted on paper test method and in trays added with soil. The results showed that the auxin concentration treatment had a very significant effect on the maximum growth potential, vigor index and relative growth rate, significant effect on germination power and The expiration rate had a very significant effect on the maximum growth potential and germination power. Treatment of 2 g L-1 auksin concentration with 4 month expiration rate was the best treatment combination based on maximum growth potential (97,33%).

scholarly journals Pematahan Dormansi Benih Kelapa Sawit (Elaeis guineensisJacq.) dengan Perendaman dalam Air Panas dan Variasi Konsentrasi Ethephon

2013 ◽  
Vol 1 (1) ◽  
pp. 72 ◽  
Author(s):  
Belladina Farhana ◽  
Satriyas Ilyas ◽  
Lalu Firman Budiman
Keyword(s):  
Water Temperature ◽  
Maximum Growth ◽  
Hot Water ◽  
Growth Potential ◽  
Processing Unit ◽  
Radicle Growth ◽  
Seed Processing ◽  
Randomized Design ◽  
Two Factors ◽  
Drying Treatment

<p style="text-align: justify;">This research was held from April to July 2012, located in the seed processing unit of PT Astra Agro Lestari Tbk, Central Borneo. The study consisted of three experiments, the first experiment to determine the effect of water temperature and immersion intensity of seed germination. The first experiment used completely randomized design (CRD) factorial with two factors, water temperature: 27, 60, 70, 80, 90<sup>o</sup>C and immersion intensity: 1x24, 2x24, 3x24 hours. The second experiment used a single factor of CRD namely ethephon concentration: 0, 0.4, 0.8, 1.2, 1.6%. The third experiment was a continuation from the second experiment with the adding heat drying treatment during a week. The result showed that 3x24 hours soaking treatment in 80<sup>o</sup>C hot water increased the germination, soaking in ethephon 0.4% inhibited radicle growth resulted abnormal seedlings. Soaking seed in 80<sup>o</sup>C hot water for 3x24 hours and followed by ethephon and then heat drying treatment for a week increased germination (52.0% maximum growth potential) but still ineffective to break seed dormancy.</p><p>Key Words: breaking dormancy, ethephon, hot water treatment, oil palm seeds</p>

scholarly journals PENGARUH BAHAN PENGEKSTRAK DAN TINGKAT KADAR AIR TERHADAP VIABILITAS DAN VIGOR BENIH KAKAO (Theobroma cacao L.)

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Suldahna Suldahna ◽  
Hasanuddin Hasanuddin ◽  
Erida Nurahmi
Keyword(s):  
Growth Rate ◽  
Experimental Design ◽  
Theobroma Cacao ◽  
Growth Potential ◽  
Cocoa Beans ◽  
Randomized Design ◽  
Vigor Index ◽  
Completely Randomized Design ◽  
Time Required ◽  
Theobroma Cacao L

This research is intended to determine the effect of extracting materials and appropriate levels of water content on cocoa seeds, and whether or not there are any differences between the viability and the vigor of cocoa beans. The research was conducted at the Laboratory of Seed Science and Technology of the Faculty of Agriculture of Syiah Kuala University. The experimental design used was Completely Randomized Design of 3 x 3 factorial pattern with 3 x replications, so there were 9 treatment combinations and 27 experimental units. The factors studied were extracts consisting of 3 levels, namely: husk ash, sawdust and whiting and three levels of air three levels, namely: 30%, 25%, and 15%. Measurable benchmarks include Growing Potential (PT), Growing Power (DB), Vigor Index (IV), Growth Rate (KCT), Growth Unity (KST), Time Required to Achieve 50% of Total Relative Germination (T50) and Normal Dry Sprout Weight (BKKN). The results of this study showed that extracting foods are very strong on the viability and strength of the cocoa seeds, which is balanced by the growth potential benchmarks (PT), power growth (DB), growth rate (KCT), growing lavency (KST), the time required to achieve 50% germination total (T50), vigor index (IV) and normal germination weight (BKKN). Meanwhile, fertility rate grew (KST), time needed to reach 50% total relative germination (T50), spirit index (IV) and normal dried germination (BKKN). The results of this study can be concluded that there is a very real interaction between the treatment of extracting materials with cocoa beans content levels. The interaction between sawdust and 30% moisture content is the best combination. Reproduction extracting materials to the effectiveness of increasing viability and vigor of cocoa seeds. The best extraction material is found in the sawdust extracting material. The degree of air hardness to the strength of increased viability and strength of cocoa seed. The best levels of cocoa seed air are found at 30%. Keywords: cocoa, extract, seed

scholarly journals Efektivitas Invigorasi Benih Cabai (Capsicum annuum L) Kadaluarsa Menggunakan Rizobakteri Pemacu Pertumbuhan Tanaman

2020 ◽  
Vol 5 (2) ◽  
pp. 121-129
Author(s):  
Hafiz Juanda ◽  
Hasanuddin Hasanuddin ◽  
Syamsuddin Syamsuddin
Keyword(s):  
Capsicum Annuum ◽  
Bacillus Megaterium ◽  
Maximum Growth ◽  
Growth Potential ◽  
Growth Speed ◽  
Department Of Agriculture ◽  
Capsicum Annuum L ◽  
Randomized Design ◽  
Two Factors ◽  
Banda Aceh

Abstrak. Penelitian ini bertujuan untuk mengetahui Efektivitas Invigorasi Benih Cabai (Capsicum annuum L.) Kadaluarsa Menggunakan Rizobakteri Pemacu Pertumbuhan Tanaman. Penelitian ini dilaksanakan di Laboratorium Ilmu dan Teknologi Benih Program Studi Agroteknologi Fakultas Pertanian Universitas Syiah Kuala Darussalam Banda Aceh. Penelitian dilaksanakan mulai pada bulan Januari 2020. Pada penelitian ini menggunakan Rancangan Acak Lengkap (RAL) faktorial 2X9 dengan dua faktor yang diteliti. Faktor pertama varietas (V) yang terdiri dari 2 taraf yaitu: V1 (Lado F1) dan V2 (Krida F1). Faktor kedua jenis Rizobakteri (R) yang terdiri dari 9 taraf yaitu R0 : Kontrol, R1 : Bacillus larvae, R2 : Pseudomonas capasia, R3 : Azotobacter sp. R4 : Acitinobacillus suis, R5 : Bacillus polymixa, R6 : Bacillus megaterium, R7 : Bacillus stearothermophillus, R8 : Bacillus lichiniformis. Dengan demikian terdapat 18 kombinasi perlakuan. Masing - masing kombinasi perlakuan diulang sebanyak tiga kali, dengan demikian terdapat 54 satuan percobaan. Peubah yang diamati adalah potensi tumbuh (%), daya berkecambah (%), keserampakan tumbuh (%), indeks vigor (%), kecepatan tumbuh relatif (%) dan T50 (%). Hasil penelitian yang dilakukan menunjukkan bahwa interaksi antara rizobakteri jenis Azotobacter dengan varietas Lado F1 efektif dalam meningkatkan potensi tumbuh maksimum dan daya berkecambah. Interaksi antara rizobakteri jenis Bacillus polymixa dengan varietas Krida F1 efektif dalam meningkatkan potensi tumbuh maksimum dan daya berkecamabah.The Effectiveness of Invigorating Chili Seeds (Capsicum annuum L.) Expired Using Rhizobacteria Booster Plant GrowthAbstract. This study aims to determine the effectiveness of the Invigoration of Expired Chilli (Capsicum Annum L.) Seeds Using Plant Growth Booster Rizobacteria. This research was carried out in the Seed Science and Technology Laboratory of the Department of Agriculture, Faculty of Agriculture, Syiah Kuala University, Banda Aceh. The study was conducted starting in January 2020. In this study used a 2X9 factorial Complete Randomized Design (CRD) with two factors examined. The first factor is variety (V) which consists of 2 levels, namely: V1 (Lado F1) and V2 (Krida F1). The second factor is the type of Rizobacteria (R) which consists of 9 levels, namely R0 : Control, R1 : Bacillus larvae, R2 : Pseudomonas capasia, R3 : Azotobacter sp, R4 : Acitinobacillus suis, R5 : Bacillus polymixa, R6: Bacillus megaterium, R7: Bacillus stearotherinoph, R8 : Bacillus lichiniformis. Thus there are 18 treatment combinations. Each treatment combination was repeated three times, thus there were 54 experimental units. The observed variables were growth potential (%), germination (%), growth uniformity (%), vigor index (%), relative growth speed (%), and T50 (%). The results of the research showed that the interaction between Azotobacter rizobacteria and Lado F1 varieties was effective in increasing maximum growth potential and germination. The interaction between Bacillus polymixa rizobacteria and Krida F1 variety is effective in increasing the maximum growth potential and the ability to contaminate

scholarly journals Penggunaan kalium nitrat dalam pematahan dormansi fisiologis setelah pematangan pada beberapa galur padi mutan organik spesifik lokal Aceh

Kultivasi ◽  
2020 ◽  
Vol 19 (1) ◽  
pp. 1061
Author(s):  
Halimursyadah Halimursyadah ◽  
Syamsuddin Syamsuddin ◽  
Hasanuddin Hasanuddin ◽  
Efendi Efendi ◽  
Najwa Anjani
Keyword(s):  
Significant Interaction ◽  
Dry Weight ◽  
Maximum Growth ◽  
Growth Potential ◽  
Growth Speed ◽  
Relative Growth ◽  
Significance Level ◽  
Randomized Design ◽  
Two Factors ◽  
Vigour Index

Sari. Induksi mutasi radiasi merupakan metode efektif untuk meningkatkan keragaman tanaman.  Kajian akan sifat-sifat yang dibawa oleh generasi galur padi hasil mutasi penting untuk dipelajari. Penelitian ini bertujuan untuk mengetahui pengaruh radiasi sinar gamma terhadap sifat dormansi fisiologis after ripening pada galur padi mutan organik dan mengetahui keefektifan penggunaan konsentrasi KNO3 terhadap upaya pematahan dormansinya. Penelitian dilaksanakan di Laboratorium Ilmu dan Teknologi Benih, Fakultas Pertanian, Universitas Syiah Kuala. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) pola faktorial dengan dua faktor serta menggunakan uji lanjut Tukey pada taraf nyata 5%.  Faktor pertama adalah galur padi mutan organik terdiri 5 taraf yaitu G0 = tanpa radiasi (Sanbei Simeleu) sebagai pembanding, G1= Sultan Unsrat, G2= 39e, G3= 75d, G4=57e. Faktor kedua adalah  konsentrasi KNO3 terdiri 3 taraf yaitu K0 = 0%, K1 = 1%, dan K2 = 2%. Parameter yang diamati adalah potensi tumbuh maksimum, daya berkecambah, indeks vigor, keserempakan tumbuh, kecepatan tumbuh relatif, berat kering kecambah normal, dan persistensi dormansi. Hasil penelitian menunjukkan bahwa galur padi mutan organik berpengaruh sangat nyata terhadap berat kering kecambah normal dan berpengaruh nyata terhadap potensi tumbuh maksimum. Konsentrasi KNO3 berpengaruh sangat nyata terhadap daya berkecambah dan berat kering kecambah normal, serta berpengaruh nyata terhadap potensi tumbuh maksimum dan kecepatan tumbuh relatif. Terdapat interaksi sangat nyata antara galur padi mutan organik dan konsentrasi KNO3 terhadap berat kering kecambah normal, dan interaksi nyata terhadappotensi tumbuh maksimum, dan daya berkecambah.  Kombinasi terbaik dijumpai pada galur padi mutan organik 57e dan konsentrasi KNO3 2%.Kata kunci: Setelah pematangan ∙ Dormansi ∙ Galur mutan ∙ KNO3 ∙ Padi Abstract. This study aims to determine the effect of gamma radiation on the physiological dormancy after-ripening of organic mutant rice lines and the effectiveness using KNO3 concentrations on efforts to break dormancy. The study was conducted at the Seed Science and Technology Laboratory, Syiah Kuala University. This research used a completely randomized design (CRD) with two factors and Tukey test at significance level of 5%. The first factor was the organic mutant rice lines that consisted of 5 levels. There were G0 = without radiation (Sanbei Simeleu) as a comparison, G1 = Sultan Unsrat, G2 = 39e, G3 = 75d, and G4 = 57e. The second factor was KNO3 concentration, that consisted of 3 levels. There were K0 = 0%, K1 = 1%, and K2 = 2%. The observed parameters were dormancy persistence, maximum growth potential, germination, vigour index, the simultaneity of growth, relative growth speed, and normal germination dry weight,. The results showed that the organic mutant rice lines had a very significant effect on the dry weight of normal sprouts and had a significant effect on maximum growth potential. KNO3 concentration has a very significant effect on germination and dry weight of normal sprouts and has a significant effect on the maximum growth potential and relative growth speed. There was a highly significant interaction between organic mutant rice lines and KNO3 concentration on the normal dry weight of the sprouts, and significant interaction with maximum growth potential and germination. The best interaction was found in organic mutant rice lines 57e and KNO3 concentration of 2%.Keywords: After ripening ∙ Dormancy ∙ KNO3 ∙ Mutantline ∙ Rice

scholarly journals PENGARUH LAMA PEMANASAN BASAH DAN PERENDAMAN DALAM GIBERELIN TERHADAP PEMATAHAN DORMANSI BENIH KELAPA SAWIT (Elaeis guineensis jacq.)

Agrin ◽  
2021 ◽  
Vol 24 (1) ◽  
pp. 12
Author(s):  
Agustiansyah Agustiansyah ◽  
Ardian Ardian ◽  
Kukuh Setiawan ◽  
Erni Permata Dewi
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Maximum Growth ◽  
Growth Potential ◽  
Randomized Design ◽  
Breaking Dormancy ◽  
Two Factors ◽  
Heating Treatment ◽  
Completely Randomized Design ◽  
Four Levels

The aims of   this research to determined the effect wet heating and  immersion in gibberellins on breaking dormancy of  oil palm seed. The treatment was arranged in  factorially with two factors in the Completely Randomized Design. The first factors was wet heating which consists of five levels, (1) 20 days of heating; (2) 25 days of heating (3) 30days of heating (4) 35 days of heating (5) 40 days of heating.  The second factor was the concentrations of gibberellin in four levels,  (1) 0 ppm; (2) 100 ppm; (3) 200 ppm and (4) 300 ppm.  Based on the results  could be concluded that (1) wet heating could increased the percentage of germination, maximum growth potential, speed of germination, and time of emergence of sprouts, (2) 30 days wet heating treatment + immersion in 200 ppm giberelin was the best treatment in percentage of germination (64 % ± 1.3), maximum growth potential(70.7%±1.4), and speed of germination  (29% ± 1.0 per etmal).

Choice feeding as a method of determining lamb nutrient requirements and growth potential

1986 ◽  
Vol 1986 ◽  
pp. 72-72
Author(s):  
M. Cropper ◽  
M. Lloyd ◽  
G.C. Emmans ◽  
C.E. Hinks
Keyword(s):  
Growth Rate ◽  
Sugar Beet ◽  
Protein Intake ◽  
Crude Protein ◽  
Growth Potential ◽  
The Other ◽  
Nutrient Requirements ◽  
Potential Growth ◽  
Beet Pulp ◽  
Choice Feeding

The experiment described here was designed to test the proposition that lambs, given access to two feeds, as a choice, one abundant in crude protein (CP), the other deficient, can both select a diet which supports their potential growth rate and which avoids excesses of protein intake.Twenty four Suffolk x Greyface wether and females, at a mean liveweight of 20.2 kg (s.e. 0.6) were individually housed and their feed intake and liveweight recorded weekly.The four pelleted feeds used were highly digestible and had estimated energy yields of 10.5 MJ ME/kg freshweight. The basal feed (A) was made from equal parts barley and sugar beet pulp plus a vitamin/mineral mix. It contained 91 g CP/kg FW. Feed D was made by substituting fishmeal for the barley in feed A such that it contained 383g CP/kg. Feed B contained one third D and two thirds A and contained 182g CP/kg. Féed C contained two thirds D and one third A, giving a CP content of 266g CP/kg. Thus each of the four feeds A, B, C and D could be described in terms of either the proportion of feed A or the crude protein which it contained.Four lambs were offered feed A alone, and four lambs received feed B only. Twelve of the lambs were given ad 1ibitum access to both the basal feed A and one of the three other feeds B, C and D, for ten weeks. Four lambs were offered a choice between feed B and feed D for four weeks.

Sign in / Sign up

Export Citation Format

Share Document