RELATIONSHIP BETWEEN IN VITRO DIGESTIBILITY AND FINENESS OF SUBSTRATE GRIND AS AN INDICATOR OF VOLUNTARY INTAKE OF HAY BY SHEEP

1969 ◽  
Vol 49 (1) ◽  
pp. 119-124
Author(s):  
J. E. Troelsen ◽  
J. M. Bell
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Grass Species ◽  
In Vitro Digestibility ◽  
Fine Grinding ◽  
Voluntary Intake ◽  
The Difference ◽  
Alfalfa Varieties ◽  
Relationship Of

Hay of two alfalfa varieties and four grass species harvested at six maturity stages each was fed to sheep. Voluntary intakes were measured in grams of dry matter daily per kg of metabolic size. Samples were ground coarsely and finely and digested in vitro. Fine grinding did not increase the digestibility of immature hay, but with advancing maturity the fine substrate was progressively more digestible than the coarse. This difference was inversely related (P < 0.05) to voluntary feed intake. The regression of voluntary intake of dry matter (g/day/kg0.75 body weight) on the difference of in vitro digestibility of organic matter in finely and coarsely ground substrate was −2.32 g in the alfalfa hay and −4.18 g in the grass hay. The coefficient of variation from regression was 14% in the alfalfa and 17% in the grass hays. Fine grinding had a greater effect on the in vitro digestibility of organic matter than of dry matter. This resulted in a higher significance of the relationship of intake with the effect of grinding on the digestibility of organic matter than on that of dry matter.

The digestibility and voluntary intake by sheep of six tropical grasses

1972 ◽  
Vol 12 (54) ◽  
pp. 21 ◽  
Author(s):  
DJ Minson
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Grass Species ◽  
Stages Of Growth ◽  
Dry Matter Digestibility ◽  
Digitaria Decumbens ◽  
Chloris Gayana ◽  
The Mean ◽  
Voluntary Intake ◽  
The Difference

The digestibility and voluntary intake of Chloris gayana, Digitaria decumbens, Panicimum maximum var tricboglume, Paspalm dilatatum, Pennisetm Clanhtinum, and Setaria splendih were measured with sheep in metabolism pens. All grasses were grown under the same conditions and cut at the same time. Each grass was cut after growing for 28, 70, and 98 days in the summer and then again (except for P. dilatatum) after 42, 70, and 105 days in the following autumn. Four successive 28-day regrowths of each grass (two cuts only for P. dilatatum) were also harvested during the summer. All 55 cuts were artificially dried and fed at the same time, each cut being fed to eight sheep. Differences in dry matter and organic matter digestibility between grass species were relatively small with a maximum mean difference of six digestibility units between S. splendida and P. clandestinzrm. For the 28-day regrowths S. splendida was 5.1 digestibility units higher but with the more mature regrowths the difference was 6.8 digestibility units. The mean voluntary intake of dry matter of S. splendida and P. clandestinum was 9 and 11 per cent lower than that of D. decmbens (P<0.01) with the largest differences in voluntary intake between grasses occurring at the mature stages of growth. Large differences were found between grass species in both the slope and intercept of regressions relating voluntary intake to dry matter digestibility.

INTERACTION BETWEEN INOCULUM DONOR DIET AND SUBSTRATE IN IN VITRO RUMINANT DIGESTION STUDIES

1966 ◽  
Vol 46 (2) ◽  
pp. 91-95 ◽  
Author(s):  
J. E. Knipfel ◽  
J. E. Troelsen
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
In Vitro Digestion ◽  
Barley Grain ◽  
Absolute Amount ◽  
In Vitro Digestibility ◽  
Promoting Effect ◽  
Digestion Technique ◽  
The Difference

Six wethers with rumen fistula were each fed a different combination of alfalfa hay, wheat straw, and barley grain. The same mixtures were fermented for periods of 12 and 48 hours by inoculum from each wether, using a two-stage in vitro digestion technique. The in vitro digestibility of dry matter and organic matter was determined on each treatment combination.The digestibility data revealed interactions among inoculum donor diets, in vitro substrate mixtures, and fermentation periods. When the diet lacked one or more of the substrate components, a 12-hour artificial rumen fermentation resulted in digestibilities that decreased as the composition of the substrate deviated increasingly from that of the donor diet. This effect was eliminated by extending the fermentation period to 48 hours. When all the substrate ingredients were included in the donor diet, the absolute amount of each ingredient, within 10 to 80%, was of less importance.Indications were that alfalfa possessed a specific growth-promoting effect on the microflora.Increasing the proportion of alfalfa in the substrate increased the difference between the in vitro digestibility of dry matter and organic matter. This was suggested to result from a higher concentration of soluble ash in the alfalfa fraction of the mixtures.

scholarly journals Effect of Phosphate Fertilizer and Arbuscular Mycorrhizal Fungi on The Nutrient, Phosphateuptake and in Vitro Digestibility of Alfalfa

2016 ◽  
Vol 40 (3) ◽  
pp. 203 ◽  
Author(s):  
Bambang Suwignyo ◽  
Bela Putra ◽  
Nafiatul Umami ◽  
Cahyo Wulandari ◽  
Ristianto Utomo
Keyword(s):  
Organic Matter ◽  
Mycorrhizal Fungi ◽  
Dry Matter ◽  
Arbuscular Mycorrhizal ◽  
Phosphate Fertilizer ◽  
P Uptake ◽  
In Vitro Digestibility ◽  
P Fertilizer ◽  
Total P

This study aimed to determine the effect of arbuscular mycorrhizal fungi (AMF) and phosphate (P) fertilizer on the nutrient content, phosphate uptake and in vitro digestibility of alfalfa (Medicago sativa L.).The research was conducted at green house of Forage and Pastures Science Laboratory, Faculty of Animal Science Universitas Gadjah Mada. The experiment was arranged in Completely Randomized Design using 3x4 factorial patterns with four replications. The first factor was dosage of phosphate fertilizer SP 36 (0, 60, and 120 kg/ha). Second factor was the dosage of AMF (0, 0.8, 1.6, and 2.4kg/ha). The variable measured was nutrient contents (crude protein, dry matter, and organic matter), total P uptake and dry matter and organic matter in vitro digestibility. The results showed that the interaction of AMF and P fertilizer had no significant effect on crude protein and total P uptake, but highly significant effect on the parameters of dry matter, organic matter and dry matter and organic matter in vitro digestibility. 

scholarly journals Effect of Substitution of Urea With Different Type and Levels of Ruminant Manure on Nutritive Value of Rice Straw Silage

2019 ◽  
Vol 9 (2) ◽  
pp. 206-214
Author(s):  
Ali Ameen Saeed ◽  
Saja Intisar Abid
Keyword(s):  
Organic Matter ◽  
Rice Straw ◽  
Dry Matter ◽  
Nutritive Value ◽  
In Vitro Digestibility ◽  
N Content ◽  
Aerobic Stability

This study was conducted in Nutrition Lab. to investigate the effect of the type and level of substitution of urea with ruminant manure, M (sheep, cow and buffalo) on basis of nitrogen (N) content on the nutritive value of rice straw silage (RSS). Accordingly silages were nominated as, S-RSS, C-RSS and B-RSS. Urea (U) was substituted with dried manure at 6 combinations, 100:0, 90:10, 80:20, 70:30, 60:40 and 50:50 of U:M. Silage samples were prepared by treating chopped straw with pre-treated solution contained 10% low quality debis and 2% urea. Results showed that lower (P˂0.01) DM loss (11.4%) was observed in S-RSS, and with addition of urea only (3.6%).        Samples of S-RSS and C-RSS recorded higher (P˂0.01) Fleig points (Fp) as compared with those prepared by the addition of B-RSS, 60.42, 55.58 and 49.59 respectively. Reduction (P˂0.01) in this parameter was noticed in samples prepared with a combination of 100:0. Aerobic stability (AS) was a reduced (P˂0.01) in samples prepared by addition of S-RSS by 15 and 13 hours in comparison with samples of C-RSS and B-RSS respectively. Samples prepared with combination of 100:0 were prior (P˂0.01) as compared with other samples.        Results also showed an increase (P˂0.01) in in vitro digestibility of organic matter (IVOMD) in samples of S-RSS in comparison with samples prepared by addition of C-RSS and B-RSS, 49.99, 44.59 and 42.77% respectively. Samples prepared with combination of 100:0 recorded lower (P˂0.05) in vitro digestibility of dry matter (IVDMD) as compared with combinations of 70:30 and 60:40 of U: M, 40.52, 45.36 and 45.94% respectively.

The chemical composition and in vitro digestibility of pistachio by-product

2007 ◽  
Vol 2007 ◽  
pp. 223-223 ◽  
Author(s):  
Atiyeh Bohluli ◽  
Abasali Naserian ◽  
Reza Valizadeh ◽  
Fereydon Eftekarshahroodi
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Total Phenolic Content ◽  
Dry Matter ◽  
Phenolic Content ◽  
Total Phenolic ◽  
In Vitro Digestibility ◽  
Pistachio Nuts ◽  
The World

Pistachio (pistachio vera) is from Anacardiaceae family. According to the FAO (2003) report, Iran is the largest pistachio producer in the world (more than 310,000 tons). The most three important exported pistachio nuts of Iran are Ohadi, Akbari and Kaleghuchi (Mohammadi, 2005). About 150,000 tons in DM of pistachio by-product (PB) is produced from dehulling process in Iran, annually. This by-product is mainly consisted of pistachio hulls (PH), and then peduncles, leaves and a little amount of mesocarp and kernels. In this experiment the chemical composition, Total Phenolic Content (TPC) and tannin amount of PB and PH of Ohadi, Kaleghuchi and white varieties were determined; also, In Vitro Dry Matter and Organic Matter Digestibility (IVDMD and IVOMD) were measured.

scholarly journals Sunflower cake in diets for beef cattle: digestibility, kinetics and in vitro ruminal fermentation parameters

2018 ◽  
Vol 41 (1) ◽  
pp. 39492 ◽  
Author(s):  
Rafael Henrique de Tonissi e Buschinelli de Goes ◽  
Luiz Henrique Xavier da Silva ◽  
Tatiana García Díaz ◽  
Antonio Ferriani Branco ◽  
Ana Lúcia Teodoro ◽  
...  
Keyword(s):  
Organic Matter ◽  
Beef Cattle ◽  
Soybean Meal ◽  
Crude Protein ◽  
Dry Matter ◽  
In Vitro Digestibility ◽  
Ruminal Fermentation ◽  
Fermentation Products ◽  
Sunflower Cake

 The objective of this study was to evaluate the effect of the inclusion of sunflower cake replacing soybean meal in beef cattle diets on the in vitro digestibility of dry matter (IVDDM), organic matter (IVDOM), crude protein (IVDCP) and the ruminal fermentation kinetics and parameters. The experiment was analyzed according to a completely randomized design. The treatments consisted of four levels of sunflower cake, 0, 200, 400, 600 g kg-1, replacing soybean meal in the concentrate of beef cattle diets. The coefficients of IVDDM, IVDOM and IVDCP presented a quadratic effect with the addition of sunflower cake. The soluble fraction (fraction B) degradation rate and total gas production decreased linearly with the inclusion of sunflower cake. Values of pH in ruminal fluid were higher for levels 0, 200 and 600 g kg-1 sunflower cake. Sunflower cake can replace soybean meal by up to 280 g kg-1 in the concentrate of beef cattle diets, improving the in vitro digestibility of dry matter organic, matter and crude protein. Levels above 400 g kg-1 reduce ruminal digestion rate, digestibility and release of final fermentation products. 

Determination of the yield characteristics and in vitro digestibility of barley forage harvested in different vegetation periods

2016 ◽  
Author(s):  
Mehtap Guney ◽  
Cagri Kale ◽  
Duran Bolat ◽  
Suphi Deniz
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Energy Content ◽  
Vegetation Period ◽  
Metabolizable Energy ◽  
Mature Stage ◽  
In Vitro Digestibility ◽  
Net Energy ◽  
Seed Formation

This study planned to determine the differences among nutrient composition, in vitro digestibility, energy content, digestible dry matter and organic matter yields of barley forage harvested at three different stages of maturity. Each vegetation period (heading stage, seed formation stage and mature stage) was randomly assigned to 5 replication from 1 square meter area and fifteen samples were harvested in total. DM, ADF (p<0.001), and NDF (p<0.05) contents were different in each stages of barley forage. In vitro dry matter (IVDMD), organic matter digestibility (IVOMD), metabolizable energy (ME), and net energy for lactation (NEL) values of samples were determined to be lower than the other two stages at the mature stage (p<0.05). Yield parameters of barley were significantly affected by vegetation period (p<0.001). It can be concluded that all three vegetation period had significantly higher digestibility. Digestible DM, OM and energy yields were higher when harvested at the mature stage of vegetation.

scholarly journals Evaluation of Seven Oat (Avena sativa) Genotypes for Biomass Yield and Quality Parameters under Different Locations of Western Oromia, Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Abuye Tulu ◽  
Mekonnen Diribsa ◽  
Worku Temesgen
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Block Design ◽  
Quality Parameters ◽  
Neutral Detergent Fiber ◽  
In Vitro Digestibility ◽  
Forage Crops ◽  
Yield And Quality ◽  
Digestible Organic Matter

Recognizing the potential and importance of cultivating improved forage crops as a means of tackling the recurrent feed shortage facing the study area, seven oat genotypes were tested in randomized complete block design with three replications across two locations for three growing seasons (2014, 2015, and 2016). The study was aimed to evaluate dry matter (DM) and digestible organic matter yield and nutrient composition of oat genotypes. The study revealed that oat genotypes responded differently for herbage dry matter (DM) and digestible organic matter (OM) yield, and quality parameters in both study locations. Averaged over the seven oat genotypes, herbage DM and digestible OM yield. recorded at Bako were higher than Boneya Boshe location across the study periods. The ash ( P  > 0.05) content did not vary among oat genotypes at both testing locations, while variation was observed for DM, crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF), acid detergent lignin (ADL), in vitro digestibility, and metabolizable energy (ME) constituents. In general, genotypes ILRI 6710 and 5453 showed higher herbage DM and digestible OM yield. Moreover, the two genotypes are also higher in their in vitro digestibility value and ME, DM, and CP contents but relatively lower in NDF, ADF, and ADL fiber constituents, and thus, they are recommended for wider cultivation.

scholarly journals Evaluasi Kecernaan In Vitro Complete Feed Fermentasi Berbahan Dasar Ampas Sagu dengan Teknik Fermentasi Berbeda

2016 ◽  
Vol 1 (1) ◽  
pp. 808-815
Author(s):  
Sugrahadi Ahmad Aprianto ◽  
Yunasri Usman ◽  
Asril Asril
Keyword(s):  
Organic Matter ◽  
Dairy Cattle ◽  
Dry Matter ◽  
Animal Husbandry ◽  
In Vitro Digestibility ◽  
Dry Matter Digestibility ◽  
Randomized Design ◽  
Organic Matter Digestibility

Abstrak: Penelitian ini telah dilaksanakan di Laboratorium Ilmu Nutrisi dan Makanan Ternak Program Studi Peternakan Fakultas Pertanian Universitas Syiah Kuala dan dilanjutkan dengan pengiriman sampel penelitian ke Laboratorium Ternak Perah Institut Pertanian Bogor (IPB) untuk pengujian kecernaan secara in vitro. Tujuan dari penelitian ini adalah menguji kecernaan secara in vitro complete feed berbahan dasar ampas sagu dengan teknik fermentasi yang berbeda.Pembuatan complete feed disusun sesuai dengan kebutuhan ternak domba. Penelitian ini menggunakan Rancangan Acak lengkap (RAL) dengan 3 perlakuan dan masing-masing perlakuan terdiri atas 5 ulangan. Perlakuan 1 (kontrol) adalah complete feed tanpa penambahan Saus Burger Pakan (SBP) dan tanpa fermentasi, perlakuan 2 adalah ampas sagu difermentasi dengan SBP selama 14 hari kemudian dicampur menjadi complete feed dan difermentasi hingga 21 hari, sedangkan perlakuan 3 adalah ampas sagu + complete feed kemudian difermentasi dengan SBP selama 21 hari. Parameter yang diamati dalam penelitian ini adalah pH, Bahan Kering (BK), Bahan Organik (BO), Koefisien Cerna Bahan Kering (KCBK), dan Koefisien Cerna Bahan Organik (KCBO). Hasil pengamatan menyimpulkan bahwa, teknik fermentasi yang berbeda berpengaruh sangat nyata (P0,01) terhadap semua parameter yang diamati, yaitu pH, BK, BO, KCBK dan KCBO. Dari hasil penelitian dapat disimpulkan bahwa nilai kecernaan complete feed berbahan dasar ampas sagu dipengaruhi oleh perbedaan teknik fermentasi. Digestibility Evaluation In Vitro Complete Feed Fermentation Sago Residues Based with Different Fermentation Techniques Abstract: This research was conducted at the Laboratory of Nutrition and Feed Studies, Program study Animal Husbandry, Faculty of Agriculture, University of Syiah Kuala and continued with the delivery of sample to the Laboratory of Dairy Cattle Institute Pertanian Bogor (IPB) for testing of in vitro digestibility. The purpose of this study was to test in vitro digestibility of complete feed made from  the residues of sago with different fermentation techniques. Complete feed was arranged based on the needs of sheep. This study used a complete randomized design (CRD) with 3 treatments and each treatment consisted of 5 replicates. Treatment 1 (control) was a complete feed without the addition of Saus Burger Pakan (SBP) and without fermentation, treatment 2 was sago residu  fermented with SBP for 14 days and then mixed into a complete feed and fermented up to 21 days, whereas treatment 3 was the sago residue + complete feed then fermented with SBP for 21 days. The parameters observed in this study were pH, Dry Matter (BK), Organic Matter (BO), Dry Matter digestibility coefficients (KCBK), and Organic Matter Digestibility Coefficient (KCBO). The result influence showed that, different fermentation technique was significantly (P 0.01) all parameters, namely pH, BK, BO, KCBK and KCBO. It can be concluded that the digestibility of complete feed made from sago residue influenced by differences in fermentation techniques

EFFECTS OF DIFFERENT DRY MATTER DETERMINATION METHODS ON CHEMICAL COMPOSITION AND IN VITRO DIGESTIBILITY OF SILAGES

1973 ◽  
Vol 53 (4) ◽  
pp. 753-760 ◽  
Author(s):  
R. E. LARSEN ◽  
G. M. JONES
Keyword(s):  
Organic Matter ◽  
Crude Protein ◽  
Dry Matter ◽  
In Vitro Digestibility ◽  
Cellulose Content ◽  
Freeze Dried ◽  
Gross Energy ◽  
Determination Methods

Dry matter (DM) contents of 13 silages, comprised of 5 corn, 4 legume–grass, and 4 corn–hay crop silage mixtures, were determined by (1) toluene distillation (TD), corrected for volatiles lost into the aqueous distillate; (2) TD, uncorrected; (3) freeze-drying (FD); (4) oven-drying (OD) at 40 C; (5) OD at 65 C; and (6) moisture-tester at 100 C. Corrected TD showed significantly higher (P < 0.01) DM levels compared with other methods. Up to 12.8% loss of DM resulted from heat-drying, depending on the method and the sample. Dried-ground silages were analyzed for nutrient composition. No significant changes in cell-wall constituents or organic matter contents were observed. Silages that were FD were highest in cellulose content (P < 0.05), whereas both FD and OD at 40 C resulted in significant increases in gross energy (P < 0.05) and crude protein (P < 0.01) content compared with other methods. FD or OD at 40 C resulted in the highest dry matter solubility and in vitro digestibility of cellulose, dry matter, and organic matter (P < 0.05). The lowest values for these analyses were obtained with silages heat-dried at 65 and 100 C. Results of these studies suggest that corrected TD should be used for determination of silage DM content and that in vitro analyses or other biochemical determinations should be conducted on silage samples that have been freeze-dried or oven-dried at 40 C.

Sign in / Sign up

Export Citation Format

Share Document