scholarly journals Effect of drought stress on in vitro neutral detergent fiber digestibility of corn for silage

2021 ◽  
Vol 273 ◽  
pp. 114803
Author(s):  
G. Ferreira ◽  
L.L. Martin ◽  
C.L. Teets ◽  
B.A. Corl ◽  
S.L. Hines ◽  
...  
Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 879
Author(s):  
Seong-Shin Lee ◽  
Jeong-Seok Choi ◽  
Dimas Hand Vidya Paradhipta ◽  
Young-Ho Joo ◽  
Hyuk-Jun Lee ◽  
...  

This research was conducted to determine the effects of selected inoculant on the silage with different wilting times. The ryes were unwilted or wilted for 12 h. Each rye forage was ensiled for 100 d in quadruplicate with commercial inoculant (Lactobacillus plantarum sp.; LPT) or selected inoculant (Lactobacillus brevis 100D8 and Leuconostoc holzapfelii 5H4 at 1:1 ratio; MIX). In vitro dry matter digestibility and in vitro neutral detergent fiber digestibility were highest in the unwilted MIX silages (p < 0.05), and the concentration of ruminal acetate was increased in MIX silages (p < 0.001; 61.4% vs. 60.3%) by the increase of neutral detergent fiber digestibility. The concentration of ruminal ammonia-N was increased in wilted silages (p < 0.001; 34.8% vs. 21.1%). The yeast count was lower in the MIX silages than in the LPT silages (p < 0.05) due to a higher concentration of acetate in MIX silages (p < 0.05). Aerobic stability was highest in the wilted MIX silages (p < 0.05). In conclusion, the MIX inoculation increased aerobic stability and improved fiber digestibility. As a result of the wilting process, ammonia-N in silage decreased but ruminal ammonia-N increased. Notably, the wilted silage with applied mixed inoculant had the highest aerobic stability.


2012 ◽  
Vol 64 (5) ◽  
pp. 1246-1255 ◽  
Author(s):  
J.A.G. Azevêdo ◽  
S.C. Valadares Filho ◽  
D.S. Pina ◽  
E. Detmann ◽  
L.G.R. Pereira ◽  
...  

Fifty-seven by-products were collected from regions throughout Brazil. Chemical composition, in vitro neutral detergent fiber digestibility (IVNDFD), and total digestible nutrients (TDN) were determined with the objective of grouping by-products with similar nutritional characteristics. The by-products belonging to group one (G1) presented the highest content of neutral detergent fiber exclusive of ash and nitrogenous compounds [aNDFom(n)] and lowest energy content, with 42.5% and 38.8% of IVNDFD and TDN, respectively. A new cluster analysis was carried in order to better characterize G2 by-products, six subgroups (SGs) were established (SG1 to SG6). SG1 by-products had the highest and the lowest values for lignin and TDN, respectively. SG2 by-products had the highest aNDFom(n) value, with TDN and IVNDFD values greater than 600 and 700g/kg, respectively, and crude protein (CP) value below 200g/kg in dry matter (DM). Among all the subgroups, SG3 had the highest TDN (772g/kg) and IVNDFD (934g/kg) values and the lowest lignin (23g/kg in DM) value. The ether extract was what most influenced the hierarchical establishment of residual grouping in SG4. SG5 by-products had the highest concentration of non-fibrous carbohydrate. Different from the other subgroups, SG6 by-products had the highest value of available CP.


2011 ◽  
Vol 40 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Hamilton Caetano ◽  
Mauro Dal Secco de Oliveira ◽  
José Esler de Freitas Júnior ◽  
Aníbal Coutinho do Rêgo ◽  
Francisco Palma Rennó ◽  
...  

The objective of this study was to evaluate the agronomic characteristics, bromatological-chemical composition and digestibility of 11 corn cultivars (Zea mays) harvested at two cutting heights. Cultivars D 766, D 657, D 1000, P 3021, P 3041, C 805, C 333, AG 5011, FO 01, CO 9621 and BR 205 were evaluated when they were harvested 5 cm above ground (low) and 5 cm below the insertion of the first ear (high). The experiment was designed as random blocks, with three replicates, arranged in an 11 x 2 factorial scheme. Cultivars presented similar productions of forage dry matter and grains. Percentages of stalk, leaf, straw, cob and kernel fractions were different among cultivars, as well as dry matter content of the whole plant at harvest. Considering the whole plant, only the contents of gross energy, nitrogen in neutral detergent fiber, and in vitro neutral and acid detergent fiber digestibility did not differ among cultivars. Increase on the cutting height improved forage quality due to the reduction of stalk and leaf fractions and contents of cell wall constituents.


2020 ◽  
Vol 7 (1) ◽  
pp. 29
Author(s):  
Marselinus Hambakodu ◽  
Alexander Kaka ◽  
Yessy Tamu Ina

ABSTRAKPenelitian ini bertujuan untuk mengevaluasi kecernaan NDF, kecernaan ADF dan kecernaan hemiselulosa pada hijauan pakan tropis secara in vitro. Materi yang digunakan dalam penelitian ini adalah 8 jenis pakan hijauan tropis dan cairan rumen kambing PE berfistula yang diberi pakan dengan kandungan PK 12% dan TDN 62%. Rancangan percobaan yang digunakan adalah rancangan acak lengkap 8 perlakuan pakan dan 3 ulangan. Perlakuan terdiri dari P1 = turi (Sesbania grandiflora), P2 = nangka (Artocarpus heterophyllus), P3 = pisang (Musa acuminate), P4 = mangga (Mangifera indica L.), P5 = gamal (Gliricidia sepium), P6 = mahoni (Swietenia mahagoni (L.) Jacq.), P7 = kaliandra (Calliandra calothyrsus) dan P8 = lamtoro (Leucaena leucocephala). Data dianalisis menggunakan ANOVA taraf 5%, dan dilanjutkan dengan uji Duncan. Hasil penelitian menunjukkan bahwa kecernaan NDF, kecernaan ADF, dan kecernaan hemiselulosa berbeda nyata (P<0,05). Hijauan pakan tropis lamtoro, kaliadra dan gamal memiliki kecernaan NDF, kecernaan ADF lebih tinggi dibandingkan turi, nangka, pisang, mangga, dan mahoni, namun kecernaan hemiselulosa kaliandra, manga dan lamtoro tertinggi. Kesimpulan, hijauan Leucaena leucocephala, Calliandra calothyrsus, dan Gliricidia sepium memiliki kecernaan NDF tertinggi (70,34%; 66,26% dan 62,29%), dan kecernaan ADF tertinggi (53,79%; 48,08%; dan 58,91%), namun kecernaan hemiselulosa tertinggi adalah Calliandra calothyrsus, Mangifera indica L, dan Leucaena leucocephala (18,18%; 17,80% dan 16,55%).Kata kunci: in vitro, hijauan tropis, kecernaan, serat ABSTRACTThis research was conducted to evaluate neutral detergent fiber digestibility, acid detergent fiber digestibility, and hemicellulose digestibility on tropical browse plants in vitro. The materials used in this research were 8 types of tropical forages and rumen fluid from Etawa Crossbreed goat fistulated with CP 12 % and 62 % TDN. The experimental design used was the completely randomized design of 8 feed treatments and 3 replications. Treatments consisted of P1 = Sesbania grandiflora, P2 = Artocarpus heterophyllus, P3 = Musa acuminata, P4 = Mangifera indica L., P5 = Gliricidia sepium, P6 = Swietenia mahagoni (L.) Jacq, P7 = Calliandra calothyrsus, and P8 = Leucaena leucocephala. Data were analyzed using ANOVA 5%, and continued by Duncan test. The results of the study showed that neutral detergent fiber digestibility, acid detergent fiber digestibility, hemicellulose digestibility were significantly (P<0.05). Tropical forages of Leucaena leucocephala and Gliricidia sepium were highest neutral detergent fiber digestibility (70,34% and 62,29%), and highest acid detergent fiber digestibility (57,14% and 58,91%), with hemicellulose digestibility (64,10% and 65,00%).Keywords: digestibility, fiber, tropical browse plants, in vitro


2017 ◽  
Vol 47 (5) ◽  
Author(s):  
Mikael Neumann ◽  
Guilherme Fernando Mattos Leão ◽  
Eloize Jaqueline Askel ◽  
Fabiano Marafon ◽  
Danúbia Nogueira Figueira ◽  
...  

ABSTRACT: Forage conservation in silos depends on the efficiency of silo sealing, among other factors, to minimize aerobic deterioration and consequent qualitative and quantitative losses in silage. Thus, the aim of the present study was to evaluate the effect of two sealing types on dry matter recovery rate, aerobic stability, nutritional composition, and in vitro digestibility of corn silage in bunker silos: 110-µm-thick double-sided polyethylene sealing (conventional sealing) and110-µm-thick double-sided polyethylene sealing superimposed on 111-µm-thick translucent polyethylene sealing (double sealing). There were no significant differences in nutritional composition of silages between conventional and double sealing. However, the double sealing system was more efficient (P<0.05) in maintaining lower silo temperatures (30.48°C vs. 31.18°C), in dry matter recovery (88.79% vs. 85.64%), and increased in vitro neutral-detergent fiber digestibility (33.04% vs. 24.6%), when compared to the conventional version.


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