ESTIMATION OF THE NUTRITIVE VALUE OF SILAGES

1986 ◽  
Vol 66 (1) ◽  
pp. 117-127 ◽  
Author(s):  
J. P. LAFOREST ◽  
J. R. SEOANE ◽  
G. DUPUIS ◽  
L. PHILLIP ◽  
PAUL M. FLIPOT
Keyword(s):  
Cell Walls ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Water Solubility ◽  
Protein Digestibility ◽  
Physical Characteristics ◽  
Dry Matter Digestibility ◽  
Close Relationship ◽  
Packed Volume

Forty-eight wethers were used to determine voluntary intake and digestibility of eight silages made from pure swards of legumes and grasses. Chemical and physical characteristics of silages were measured and related to dry matter intake, digestibility coefficients and digestible nutrient intakes by means of simple correlation and linear regression analyses. Intakes of dry matter (DM), digestible energy, digestible protein and total digestible nutrients were correlated negatively with percentage cell walls (r = −0.87) and positively with crude protein (r = 0.92). Lignin and the logarithm of (lignin × 100/acid detergent fiber) were highly correlated to cell walls digestibility (r = 0.98). There was a close relationship between protein digestibility and crude protein content (r = 0.99). Dry matter digestibility was accurately estimated by a summative equation (r = 0.74). The physical characteristics (packed volume and water solubility) of the silages were not well correlated to either digestibility coefficients or intake. The nutritive value of good quality, well-preserved grass and legume silages was satisfactorily predicted from laboratory analyses of crude protein and cell wall components. The applicability of the equations developed in this study should be tested using a larger number of silages. Key words: Nutritive value, forages, silages, sheep

Seasonal production of Andropogen Gayanus: II. Seasonal changes in digestibility and feed intake

1970 ◽  
Vol 75 (3) ◽  
pp. 369-373 ◽  
Author(s):  
R. J. Haggar ◽  
M. B. Ahmed
Keyword(s):  
Feed Intake ◽  
Seasonal Changes ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Protein Digestibility ◽  
Dry Matter Digestibility ◽  
Voluntary Feed Intake ◽  
Andropogon Gayanus ◽  
Voluntary Intake

SUMMARYTwenty-seven sheep feeding trials were carried out on freshly cut Andropogon gayanus, fed daily during three wet seasons, 1966–8.In each year, dry-matter voluntary intake and digestibility were highest during the first part of the growing season and declined with advancing maturity of the herbage. However, at the time of ear emergence in early October, there were small increases in voluntary intake of dry-matter and crude protein digestibility, although further decreases followed after mid-October.Determinations of in vitro digestibility indicated that elongating stems during early October were at least as digestible as leaves.Seasonal changes in crude protein digestibility were much greater than changes in dry-matter digestibility; seasonal changes in feed intake were intermediate. Voluntary feed intake was related to dry-matter digestibility.Voluntary feed intake and digestible crude protein were both closely related to the crude protein content of the forage. It was concluded that crude protein is a useful criterion for predicting nutritive value.

Effect of salinomycin and enzyme supplementation on nutrient digestibility and the performance of pigs fed barley- or rye-based diets

1992 ◽  
Vol 72 (1) ◽  
pp. 117-125 ◽  
Author(s):  
P. A. Thacker ◽  
G. L. Campbell ◽  
J. W. D. GrootWassink
Keyword(s):  
Feed Efficiency ◽  
Crude Protein ◽  
Nutritive Value ◽  
Control Diet ◽  
Protein Digestibility ◽  
Nutrient Digestibility ◽  
Growing Pigs ◽  
Beta Glucanase ◽  
Dry Matter Digestibility ◽  
Crossbred Pigs

Two experiments of a factorial design (sex × treatment) were conducted to determine the effects of enzyme and salinomycin supplementation on the nutritive value of barley or rye-based diets for growing pigs fed from approximately 20 to 85 kg. For exp. 1, 72 crossbred pigs were fed either a barley-based control diet or a similar diet supplemented with enzyme (Aspergillus niger; 750 units g−1 beta-glucanase and 650 units g−1 pentosanase), salinomycin (25 ppm) or both additives in combination. For exp. 2, two replicates of 48 pigs were fed either a barley-based diet, an unsupplemented rye-based diet or a rye-based diet supplemented with enzyme, salinomycin or both additives. During both experiments, chromic oxide (0.5%) was added to the diet of four to six pigs/treatment to act as a digestibility indicator starting when the pigs reached 42 kg. Neither enzyme nor salinomycin, alone or in combination, significantly improved the growth rate or feed efficiency of pigs fed barley or rye. Supplementation of barley with the combination of additives significantly (P < 0.05) improved protein digestibility while neither enzyme nor salinomycin had any effect on nutrient digestibility when fed alone. In rye-based diets, salinomycin, both alone and in combination, significantly (P < 0.05) improved the digestibility of crude protein and energy. Dry matter digestibility of the rye-based diets was unaffected by treatment. Key words: Swine, rye, barley, beta-glucanase, pentosanase, salinomycin

scholarly journals Effect of seedbed methods and time of harvest on the yield and nutritive value of some forage crops grown on Vertisol at Debre Zeit, Ethiopia

1992 ◽  
Vol 1 (5) ◽  
pp. 491-497
Author(s):  
Abate Tedla ◽  
Helena Airaksinen ◽  
M. A. Mohamed-Saleem
Keyword(s):  
Avena Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Dry Matter Yield ◽  
Lablab Purpureus ◽  
Forage Crops ◽  
Dry Matter Digestibility ◽  
Time Of Harvest

The influence of the improved drainage broadbed and furrow (BBF), as opposed to the traditional flat seedbed over the growing season on the dry matter yield and nutritive value of Avena sativa, Vigna unguiculata, Lablab purpureus, Vida dasycarpa, Trifolium steudneri and Sesbania sesban were studied on Vertisol. Up to 7 t/ha dry matter yield was recorded for Avena sativa and Lablab purpureus when planted on Vertisols with improved drainage. Dry matter yield of forage crops also increased with advance in stage of maturity or subsequent harvests. On both improved and traditional flat seedbed methods, the chemical analysis of forage crops showed similar declines in crude protein content and in vitro dry matter digestibility (IVDMD) levels as the maturity of forage crops progressed.

scholarly journals Chemical characteristics, aerobic stability, and microbiological counts in corn silage re-ensiled with bacterial inoculant

2018 ◽  
Vol 53 (9) ◽  
pp. 1045-1052
Author(s):  
Mateus Merlo Coelho ◽  
Lúcio Carlos Gonçalves ◽  
José Avelino Santos Rodrigues ◽  
Kelly Moura Keller ◽  
Gustavo Vinícius de Souza dos Anjos ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Corn Silage ◽  
Neutral Detergent Fiber ◽  
Dry Matter Digestibility ◽  
Aerobic Stability ◽  
Whole Plant

Abstract: The objective of this work was to evaluate the effects of re-ensiling and bacterial inoculation on the quality of corn silage. The experiment was carried out in a 2x2 factorial design with or without inoculant (association of Lactobacillus plantarum and Propionibacterium acidipropionici), and with re-ensiling after 36 hours of aerobic exposure or only ensiling of the whole plant of 'BRS 1055' corn. The fermentative quality, nutritional parameters, dry matter losses, aerobic stability, and microbiological counts of silages were evaluated. Re-ensiling caused an increase of pH and in acetic acid and propionic acid concentrations, as well as in the dry matter (DM), crude protein, neutral detergent fiber, and neutral detergent fiber crude protein contents. Conversely, there was a reduction in the nonfiber carbohydrates concentration and in in vitro dry matter digestibility for the re-ensiled material. All changes were explained by the higher-effluent production and DM loss of re-ensiled material that was subjected to two compactions. Microbiology was not altered by the treatments. The use of inoculant altered ash content, but it did not influence other parameters. In contrast, re-ensiling after 36 hours of aerobic exposure caused a reduction in the nutritive value of corn silage and accentuated the DM losses.

scholarly journals Voluntary Intake and Apparent Digestibility of Artificially Dried Stargrass Fed to Holstein Bull Calves

1969 ◽  
Vol 61 (4) ◽  
pp. 429-437
Author(s):  
J. A. Yazman ◽  
J. A. Arroyo-Aguilú ◽  
R. E. McDowell ◽  
P. J. Van Soest ◽  
H. Cestero
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Chemical Constituents ◽  
Protein Digestibility ◽  
Neutral Detergent Fiber ◽  
Apparent Digestibility ◽  
Holstein Bull ◽  
Bull Calves ◽  
Voluntary Intake

Voluntary intake and apparent digestibility of an artificially dried tropical grass, Cynodon nlemfuensis variety nlemfuensis. was evaluated utilizing Holstein bull calves. Two regrowth ages of grass hays, 30 and 45 days, were fed to two groups of four calves each: 16 and 24 weeks old. The grass hays were analyzed for dry matter and crude protein and for fiber fractions according to Goering and Van Soest. There were no significant differences between means for voluntary intake (g/kg body weight (BW)/day) of the chemical constituents for the four calf-hay groups. However, the trend was for higher intake by the 24-week old calves fed the 30-day hay than by the other three groups. Among the 16- week old calves, there was a higher voluntary intake by those consuming the 45-day hay despite the slightly higher nutritive value of the 30-day hay. When the data were pooled across calf ages, voluntary intake of 30-day hays was greater than for the 45-day ones, although only differences in crude protein intake were significant (P < .05). Pooled across hay ages, voluntary intake by the 24-week old calves was significantly greater (P < .05) than by the 16-week old calves for dry matter and neutral-detergent fiber only, indicating that hay intake was related to reticulo-ruminal capacity. Differences in apparent digestibility were significant (P < .05) only for crude protein with the 24-week old calves fed the 30-day hay, having a greater coefficient of digestibility than the 16- and 24-week old calves fed the 45-day hay. Crude protein digestibility of the 30-day hays (pooled across calf ages) was significantly greater (P < .05) than that of the 45-day hays. Although not significant for all constituents, the values were higher for the 30-day hay than for the 45-day hay (pooled across calf ages) and for the 24- week old calves than for the 16-week old calves (pooled across hay ages).

scholarly journals Digestibility and digestive enzyme activity in Labeo fimbriatus (Bloch, 1795) fed periphyton grown on sugarcane bagasse

2017 ◽  
Vol 64 (1) ◽  
pp. 37
Author(s):  
B. Gangadhar ◽  
N. Sridhar ◽  
H. Umalatha ◽  
H. Ganesh ◽  
A.R.T. Simon ◽  
...  
Keyword(s):  
Sugarcane Bagasse ◽  
Crude Protein ◽  
Dry Matter ◽  
Digestive Enzyme ◽  
Standard Procedure ◽  
Protein Digestibility ◽  
Fecal Matter ◽  
Carboxypeptidase B ◽  
Dry Matter Digestibility ◽  
Pelleted Feed

An experiment of 60 days duration was carried out to compare dry matter and protein digestibility of periphyton grown on sugarcane bagasse bundles and a pelleted feed in Labeo fimbriatus (Bloch, 1795). Advanced fingerlings maintained in glass aquaria were allowed to feed on fresh periphyton or pelleted feed (20% crude protein) daily morning, the fecal matter collected following standard procedure and analysed for proximate composition. Acid insoluble ash was used as the reference marker for digestibility estimation. Activity of total protease, trypsin, chymotrypsin, carboxypeptidase - A and B, amylase, lipase and cellulase in the gut of fish was estimated at the end of the feeding trial. Periphyton and pelleted feed showed similar (p>0.05) protein digestibility (92.29 and 89.21% respectively), while total dry matter digestibility was higher (p<0.05) with peiphyton (85.44 and 75.16% respectively). Among the proteases estimated, activity of total protease and carboxypeptidase B was higher (p<0.05) in fish fed periphyton, whereas activity of others showed no difference between those receiving periphyton and pelleted feed (p>0.05). Activity of carbohydrases and lipase was higher in fish fed pelleted feed. Results of the study cleary indicated that L. fimbriatus can efficiently utilise periphyton.

Chemical composition and in vitro dry matter digestibility of parasitic plants reflect that of indigenous browse trees

2003 ◽  
Vol 2003 ◽  
pp. 173-173
Author(s):  
O. R. Madibela ◽  
M. Letso ◽  
B. Makoba ◽  
O. Seitshiro
Keyword(s):  
Protein Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Parasitic Plants ◽  
Dry Matter Digestibility ◽  
Mineral Levels ◽  
Interesting Alternative ◽  
Semi Arid

Mistletoes are common parasitic plants that attach on branches of Acacia species, Boscia albitrunca, Ziziphus mucronata and other trees of semi-arid Botswana. These plants form an interesting alternative and additional feed resource, which could increase both mineral and protein intake of ruminants. Previous studies (Madibela et al., 2000, 2002) have shown that these parasitic plants have high crude protein and mineral levels than what is expected of natural grasses. The hypothesis is that the higher the nutritive value of host browse trees the higher it is in the parasitic plants.

Pengaruh Pemberian Kombinasi Probiotik dan Tepung Belimbing Wuluh (Averrhoa bilimbi) Terhadap Kecernaan dan Energi Metabolis pada Ayam Pedaging

2019 ◽  
Vol 6 (2) ◽  
pp. 288
Author(s):  
Bintang Putri ◽  
Osfar Sjofjan ◽  
Irfan H. Djunaidi
Keyword(s):  
Field Experiment ◽  
Crude Protein ◽  
Dry Matter ◽  
Protein Digestibility ◽  
Metabolizable Energy ◽  
Metabolic Energy ◽  
Dry Matter Digestibility ◽  
Apparent Metabolizable Energy ◽  
Alternative Antibiotic ◽  
Range Test

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh pemberian kombinasi probiotik dan tepung belimbing wuluh (Averrhoa bilimbi) terhadap kecernaan dan energi metabolis pada ayam pedaging. Metode yang digunakan adalah metode percobaan dengan Rancangan Acak Lengkap dari 4 perlakuan dan 5 ulangan. Perlakuan terdiri dari P0(-) = pakan kontrol, P1 = probiotik 0,8% + tepung belimbing wuluh 0,25%, P2 = probiotik 0,8% + tepung belimbing wuluh 0,50%, P3 = probiotik 0,8% + tepung belimbing wuluh 0,75%. Variabel yang diukur pada penelitian ini meliputi kecernaan bahan kering (KcBK), kecernaan protein kasar (KcPK), energi metabolis (AME) dan energi metabolis terkoreksi nitrogen (AMEn). Data dianalisis menggunakan ANOVA dan dilanjutkan dengan Uji Jarak Berganda Duncan. Hasil dari penelitian ini adalah pemberian penambahan kombinasi probiotik dan tepung belimbing wuluh memberikan pengaruh tidak berbeda nyata (P>0,05) pada KcBK, KcPK, AME, dan AMEn, namun jika dilihat secara numerik penambahan kombinasi probiotik dan tepung belimbing wuluh pada pemberian presentase 0,75% memberikan hasil terbaik. Kesimpulan dari penelitian ini adalah kombinasi probiotik dan tepung belimbing wuluh dapat digunakan sebagai alternatif antibiotik pada pakan.Kata Kunci:acidifier, energi metabolis, kecernaan, probiotik, tepung belimbing wuluhABSTRACTThe purpose of this research to determine the effect of the combination of probiotics and Averrhoa bilimbi on digestibility and metabolic energy in broilers. The method was field experiment using Completely Randomize Design with 4 treatments and 5 replications. The treatments were consist of P0 (-) = control feed, P0 (+) = antibiotic (bacitracin), P1 = probiotic 0.8% + Averrhoa bilimbi0.25%, P2 = probiotic 0.8% + Averrhoa bilimbi0, 50%, P3 = probiotic 0.8% + Averrhoa bilimbi0.75%. The measured variables were dry matter digestibility, crude protein digestibility, apparent metabolizable energy (AME) and nitrogen corrected apparet metabolizable energy (AMEn). The data were analyzed by ANOVA and continued by Duncan’s Multiple Range Test (DMRT). The result of this research showed that the addition of probiotic and Averrhoa bilimbi combination were not significantly effects (P>0,05) on dry matter digestibility, crude protein digestibility, apparent metabolizable energy (AME) and nitrogen corrected apparet metabolizable energy (AMEn), but if when viewed numerically the combination of probiotic and Averrhoa bilimbi the addition of 0,75% gived the best result. The conclusion of this research was combination of probiotic and Averrhoa bilimbi can be used as an alternative antibiotic in feed.Keywords: acidifier,Averrhoa bilimbi, digestibility, probiotic, metabolizable energy

scholarly journals Nutritive value of sugarcane silage treated with chemical additives

2009 ◽  
Vol 66 (2) ◽  
pp. 159-163 ◽  
Author(s):  
Mateus Castilho Santos ◽  
Luiz Gustavo Nussio ◽  
Gerson Barreto Mourão ◽  
Patrick Schmidt ◽  
Lucas José Mari ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritive Value ◽  
Neutral Detergent Fiber ◽  
Fresh Weight ◽  
Chemical Additives ◽  
Acid Detergent Fiber ◽  
Dry Matter Digestibility ◽  
Randomized Experimental Design ◽  
Content Range

The use of ensiled sugarcane has been increased lately in Brazil due to the benefits that this technique represents. The objective of this study was to evaluate the effects of chemical additives on the nutritive value of sugarcane silages. The trial was carried out in a completely randomized experimental design with four replicates per treatment. The following additives were applied onto the fresh forage before ensiling: L. buchneri, lime or limestone, 1.0 and 1.5% (wet basis) each, and gypsum 1.0% (wet basis), all of them diluted into 40 L of water per ton of fresh weight of forage. The analyzed variables were: ash, crude protein, neutral detergent fiber, acid detergent fiber and organic and dry matter digestibility. The addition of lime or limestone before ensiling produced silages with higher nutritive value compared to all other treatments, due to the increase of the ash content and dry matter and organic digestibility, and also by reducing the fiber content. The crude protein content range was similar to the values observed in the fresh forage. The treatments containing L. buchneri or gypsum were ineffective in improving the nutritive value of sugarcane silages and became similar to the control silages. Treatment containing lime or limestone improved the nutritive value of the sugarcane silage.

scholarly journals Increasing levels of concentrate digestibility, performance and ingestive behavior in lambs

2016 ◽  
Vol 17 (2) ◽  
pp. 186-194 ◽  
Author(s):  
Henrique Nunes PARENTE ◽  
Michelle de Oliveira Maia PARENTE ◽  
Ruan Mourão da Silva GOMES ◽  
Wesclley de Jesus dos Santos SODRÉ ◽  
Miguel Arcanjo MOREIRA FILHO ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Block Design ◽  
Average Daily Gain ◽  
Protein Digestibility ◽  
Neutral Detergent Fiber ◽  
Ingestive Behavior ◽  
Dry Matter Intake ◽  
Gross Margin ◽  
Dry Matter Digestibility

SUMMARY The objectives of this research were to determine the effects increasing levels of concentrate on nutrients digestibility, performance, economic viability of diets and ingestive behavior of lambs. Fifteen crossbred lambs were used in a randomized complete block design according to initial body weight and age. Lambs were penned individually during 55 days, being 10 days for adaptation of diets and 45 days for data collection. The treatments consisted in three isonitrogenous diets with increasing levels of concentrate: 40, 60, or 80%, in dry matter basis. No effect (P>0.05) were observed on dry matter intake, crude protein intake, crude protein digestibility and neutral detergent fiber digestibility, whereas the dry matter digestibility was lower (P<0.01) for lambs fed diets with 40% of concentrate. The addition of 80% concentrate decreased (P<0.05) neutral detergent fiber intake, however this treatment provided higher average daily gain, followed by 60 and 40% of concentrate. In relation to feeding behavior, the animals fed80% concentrate spent more time with feeding (P<0.05) compared to the other treatments. It is concluded that supplementation of concentrate between 60 to 80% improves dry matter digestibility and performance of crossbred lambs without relevant affect dry matter intake and ingestive behavior. A diet with 80% concentrate provides positive gross margin of profit.

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