Nutritive value of kochia (Kochia scoparia) hay or silage grown in a Black soil zone in northeastern Saskatchewan for sheep

1991 ◽  
Vol 71 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Z. Mir ◽  
S. Bittman ◽  
L. Townley-Smith

Two trials were conducted to evaluate the voluntary intake and digestibility of kochia (Kochia scoparia) as hay or silage for sheep. In Trial 1, kochia (KOC) hay substituted for alfalfa hay (AA) at 0, 25, 50 or 75% of complete diets, or 50% AA or 50% KOC with barley (BAR) were fed to 24 mature wethers in a completely randomized design experiment. As the level of KOC in the diet increased, dry matter intake (DMI) of wethers decreased linearly. There were no differences (P > 0.05) in dry matter or fiber digestibilities among the four diets containing AA and KOC hay. Nitrogen and gross energy digestibilities increased linearly (P < 0.05) with decreasing levels of dietary KOC. In trial 2, KOC silage prepared from two ecotypes of KOC (southern and northern), cut at two different dates and fed in a 50:50 combination with AA silage were compared with a diet containing AA silage. DMI and nutrient digestibilities of the AA silage diet were higher (P < 0.05) than those for the diets containing KOC. Results indicate that KOC hay can be fed in high forage or concentrate diets at levels between 25 and 50% of the diet without adverse effects on intake or digestibility. Results also demonstrate that KOC can be preserved by ensiling and that KOC silage can be used in combination with AA silage in diets for sheep. Key words: Kochia, sheep, digestibility, hay, silage

1973 ◽  
Vol 53 (2) ◽  
pp. 257-263 ◽  
Author(s):  
G. PELLETIER ◽  
E. DONEFER

Three yearling Cheviot × Suffolk ewes and three Columbia wethers were confined in metabolic cages and fed ad libitum fresh and dried marrow-stem kale (Brassica oleracea var. acephala D.C.) harvested in mid- and late October. Chemical analyses of the forages indicated no marked effects on any of the plant constituents due to drying or advancing maturity. Digestibility measurements demonstrated that marrow-stem kale (MSK) was a highly digestible material with an average dry matter digestibility of 78%. The fresh forages had higher (P < 0.05) dry matter and gross energy digestibility values than the dried form. Dry matter digestibility coefficients were higher (P < 0.05) for late October as compared with the earlier harvest. A trend toward higher (P > 0.05) voluntary intake values due to drying maturity was observed with an average relative intake of 80%. The nutritive value index averaged 65, thus indicating a digestible energy intake similar to a high-quality (legume) forage.


BUANA SAINS ◽  
2017 ◽  
Vol 17 (1) ◽  
pp. 33
Author(s):  
Erik Priyo Santoso ◽  
Akhadiyah Afrila ◽  
Eka Fitasari

Waste vegetable of traditional market provided very abundant and rarely used. German mealworm known as giant meal worms are the larvae of insects named Zhopobas morio parent has a size larger than the hongkong mealworm. The purpose of this study was to determine the application of vegetable waste in feed media of German mealworm which has a different nutrient content. This experiment using a completely randomized design (CRD) factorial design with treatment G1P1 (GE 4000 kcal / kg, PK 10%), G1P2 (GE 4000 kcal / kg, PK 12%), G1P3 (GE 4000 kcal / kg, PK 14% ), G2P1 (GE 4500 kcal / kg, PK 10%), G2P2 (GE 4500 kcal / kg, PK 12%), G2P3 (GE 4500 kcal / kg, PK 14%), G3P1 (GE 5000 kcal / kg PK 10 %) G3P2 (GE 5000 kcal / kg PK 12%), G3P3 (GE 5000 kcal / kg PK 14%), each treatments replicated 3 times. The results of the research showed that the application of vegetable waste in german worm feed media is able to increase the use of feed concentrates containing gross energy and crude protein low. Vegetable waste treatment in feed media which containing gross energy of 4000 kcal / kg and 14% crude protein showing the highest value on dry matter feed intake, weight of the harvest, and worm weight gain.


2016 ◽  
Vol 7 (2) ◽  
pp. 12-16
Author(s):  
Cut Intan Novita

ABSTRACT. Fermentation of rice straw incriased its nutritive value, digestibility and palatability. The aim of the present experiment was to study the effect of feeding rations composed of fermented rice straw supplement with urea and probiotic, and mixed with concentrate. Eighteen Etawah -grade bucks (age 1.5 years) were assigned into a completely randomized design to study nutrient intake and apparent degestibility of three dietary treatments. The rations as treatments were as follow: CFR=concentrate + chopped fermented rice straw:; Complete=concentrate + groud fermented rice straw; ELG = concentrate + elephan grass. Dry matter (DM) and crude protein (CP) intake of bucks were not different significantly among treatments. Apparent degestibility of DM was not different, however CP was significantly lower (p0.05) for the GFR treatments compared to the other two treatments. These results suggest that fermented rice straw can be uded to substituse the fresh elephant grass.


2018 ◽  
Vol 5 (1) ◽  
Author(s):  
A. Fariani., dkk

The objective of this research was to study the effect of urea dose in corn cob ammoniation on the dry mater , crude fi ber and crude protein. This research was done in two processes. The fi rst process was producing corn cob ammoniation within 7 days. The second process was analyzed the nutritive value of corn cob ammoniation. This research used Completely Randomized Design with 4 treatments and 4 replications were : A (control), B (corn cob+ 2% urea), C (corn cob + 4% urea), D (corn cob + 6% urea), each treatment added with poultry manure 15% of corn cob dry weight. The parameters measured were dry matter, crudefi ber and crude protein. The result showed that all the treatments resulted signifi cantly differences on dry matter, crude fi ber and crude protein. The conclusion of the research was that the treatment by addition urea 4% gave the best result.Key words : Corn Cob, urea dose, poultry manure and ammoniation


2015 ◽  
Vol 95 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Gabriel O. Ribeiro ◽  
Alex M. Teixeira ◽  
Frederico O. Velasco ◽  
Wilson G. Faria ◽  
Diogo G. Jayme ◽  
...  

Ribeiro Jr., G. A., Teixeira, A. M., Velasco, F. O., Faria Jr., W. G., Jayme, D. G., Maurício, R. M., Gonçalves, L. C. and McAllister, T. A. 2015. Methane production and energy partitioning in sheep fed Andropogon gayanus grass ensiled at three regrowth stages. Can. J. Anim. Sci. 95: 103–110. This study was undertaken to evaluate the effect of harvesting Andropogon gayanus at different regrowth stages (56, 84 and 112 d) on the nutritional value of silage and CH4emissions from sheep. Rams (n=18) were adapted to silages for 21 d after which intake and digestibility were measured over 5 d in a completely randomized design (six rams/treatment). Heat production and methane emissions from each ram were measured in a respiration chamber over 24 h. Silage dry matter (DM; 54.4 g kg−1BW0.75d−1) intake was not influenced (P>0.05) by silage regrowth stage, but apparent DM digestibility linearly decreased (P<0.05) from 526 to 380 g kg−1with increasing regrowth. Energy lost as a percent of gross energy intake (GEI) linearly increased with longer regrowth, yet no effect on CH4losses (as% GEI; g kg−1DM; g kg−1digestible DM) or heat production were observed. Ensiling A. gayanus grass at an earlier regrowth stage (56 d) will improve silage quality, but improvements in the energetic value are not due to a reduction in enteric CH4emissions as a% GEI.


2020 ◽  
Vol 45 (2) ◽  
pp. 352-362
Author(s):  
M. Baba ◽  
A. Nasir ◽  
A. Kabiru ◽  
M. V ◽  
G. A. Umar

The experiment was conducted to determine the effects of three additives (molasses, cracked corn and corn-soybean) and inclusion levels (0, 2.5, 5, 7.5 and 10 %) on nutritive value of elephant grass (Pennistum purpureum) silage. The experimental design was a 3×5 factorial in a completely randomized design with each treatment replicated three times. Samples were obtained from Pasture Museum. Elephant grass stands at late vegetative stage were randomly selected and harvested at 7 cm stubble height. Grass was chopped into 2-3 cm length. Five hundred gram of the sample was weighed in each case; additives were added separately at the designated inclusion levels and mixed thoroughly. Materials were then tightly packed into laboratory silos compressed and sealed tightly and left for a fermentation period of 21 days. The results indicated crude protein (CP) was significantly greater (10.92%) in silage treated with corn-soybean additive compared with other additives. Crude fiber (CF) was observed to be lower in molasses treated elephant grass silage (27.74 %). Acid detergent fiber (ADF) and neutral detergent fiber (NDF) were both lower in molasses treated silage (24.76 and 43.26 % respectively). The CP was observed to increase with increased inclusion level of the additive while CF decreased. Values for digestible dry matter (DDM), dry matter intake (DMI)as a percentage of body weight and relative feed value (RFV) were greater (P<0.05) in molasses treated silage compared to corn and corn-soybean. The DDM, DMI and RFV values were higher (P<0.05) at 7.5 and 10 % inclusion levels. Significant interactions were observed between additives and inclusion levels in most parameters measured. It was concluded that molasses additive could be used in elephant grass silage during ensiling at 7.5-10 % levels of inclusion.


2017 ◽  
Vol 38 (4) ◽  
pp. 2151 ◽  
Author(s):  
Deise Silva Costa ◽  
Cláudia Maria Reis Raposo Maciel ◽  
Alaor Maciel Júnior ◽  
Francisco Oliveira de Magalhães Júnior ◽  
Gustavo César Bressan Smith ◽  
...  

The objectives of this work were to determine the apparent digestibility coefficients (ADC) of dry matter (DM), crude protein (CP) and gross energy (GE) of coconut biscuit residues (CBR), sweet biscuits (SBR) and noodles (NR) for Nile tilapia and evaluate the performance of fingerlings fed with diets containing the residues with the highest nutritional value. In the digestibility study, 72 juveniles (with an average weight of 70.5 ± 2.7 g) were organized in a completely randomized design with three treatments and three replications (12 fish per replication). ADC was determined using an indirect method in which 0.10% chromium oxide (Cr2O3) acted as an indicator. To evaluate performance, 225 fingerlings (with an average weight of 3.4 ± 0.5 g) were distributed across 15 tanks (150 L), creating a completely randomized design with five treatments and three replications. The test diets contained 0, 4, 8, 12 or 16% CBR. ADCDM, ADCCP and ADCGE for each of the different residues were, respectively: 85, 88 and 86% for CBR; 32, 51 and 46% for SBR; 24, 31 and 26% for NR. The inclusion of CBR significantly affected final weight of the fish, specific growth rate and protein retention rate, as well as the carcass composition values for dry matter, mineral matter, gross energy and ethereal extract. CBR presents better digestibility than the other tested residues and it can be used as a substitute for maize meal in quantities up to 11.62%, thus improving fish performance.


2018 ◽  
Vol 39 (2) ◽  
pp. 757
Author(s):  
Thalles Ribeiro Gomes ◽  
Ednardo Rodrigues Freitas ◽  
Pedro Henrique Watanabe ◽  
Maria Elizimar Felizardo Guerreiro ◽  
Amanda Da Rocha Sousa ◽  
...  

Two trials were conducted aiming to determine the chemical composition, the digestibility of nutrients and energy from dehydrated cashew apple meal, as well as to evaluate the effects generated by including increasing levels (0, 10, 20, 30, 40 and 50%) of this ingredient in growing rabbit feed, on performance, carcass characteristics and economic evaluation. In the digestibility trial, were used 24 rabbits with 55 days of age, distributed in a completely randomized design with two treatments and twelve repetitions, being one reference feed and the other test feed, composed by 70% of the reference feed and 30% DCAM. The coefficients of the dry matter digestibility, crude protein and gross energy of the DCAM were, respectively, 67.79; 30.03 and 48.61%. The digestible dry matter, digestible protein and digestible energy, based on dry matter, were, respectively, 59.55%; 4.76% and 2,119.66 kcal/kg. In the second trial, 120 mixed breed rabbits were used, with an average of 45 days of age and weight 1143 ± 153g. The animals were distributed in a completely randomized design, with six treatments and ten repetitions with two rabbits of the same sex per cage. It was observed that the inclusion of DCAM did not affect (P > 0.05) the feed intake, but reduced (P < 0.05) the feed conversion efficiency, as well as a linear reduction in carcass yield. A quadratic effect on daily weight gain and the ratio meat/bone was observed, with better inclusion level estimated at 25.31 and 24.65%, respectively. The inclusion of DCAM linearly improved economic viability to the level of 50%, however not to harm the weight gain and the ratio meat/bone, it is recommended to include up to 25%.


2017 ◽  
Vol 30 (4) ◽  
pp. 1001-1008
Author(s):  
JOÃO PEDRO ALVES DE AQUINO ◽  
ANTÔNIO AÉCIO DE CARVALHO BEZERRA ◽  
FRANCISCO DE ALCÂNTARA NETO ◽  
CARLOS JOSÉ GONCALVES DE SOUZA LIMA ◽  
RAYLSON RODRIGUES DE SOUSA

ABSTRACT Cowpea is broadly cultivated worldwide, especially in semi-arid or arid regions where soil or irrigation water salt contents can negatively influence the species’ productive capacity. The objective of this study was to evaluate the morphophysiological responses of cowpea genotypes to irrigation water salinity. The experiment was conducted in a greenhouse, under a completely randomized design with nine replications and in a 5x3 factorial scheme. Treatments consisted of five levels of irrigation water electrical conductivity - EC (EC0: 0.55; EC1: 1.60; EC2: 3.20; EC3: 4.80 and EC4: 6.40 dS m-1), applied from the 15th day after sowing (DAS), and three cowpea genotypes (G1: BRS Imponente; G2: MNC04-795F-168 and G3: MNC04-795F-159). EC increases at 35 DAS promoted stem diameter reductions of 8.0% (G1), 11.4% (G2), and 7.7% (G3), indicating different resistance to salinity by each genotype. Leaf area reductions at 25 and 38 DAS were 30.9% and 38.8% for EC0 and EC4, respectively. The BRS Imponente cultivar presented a performance superior to those of G2 and G3 in relation to stem diameter and stem dry matter at 25 DAS, and root-shoot and root-leaf ratios at 38 DAS.


Revista CERES ◽  
2016 ◽  
Vol 63 (5) ◽  
pp. 668-675
Author(s):  
Mauro Antônio Rizzardi ◽  
Alana Cristina Dorneles Wandscheer ◽  
Andrea Ferreira Hoffmann

ABSTRACT Competition is the best known form of direct interference of weeds on agricultural crops. However, there is relatively little information on the competition of the weed sudangrass on soybean, which has been common in agricultural areas in the southern of Rio Grande do Sul. The objective of this study was to evaluate the competition between sudangrass and soybeans using replacement series experiments. The experiment was carried out in a greenhouse in a completely randomized design with four replications. The treatments consisted of soybean and sudangrass associations. The experimental units were 8-L plastic pots, in the proportions 0: 8, 2: 6, 4: 4, 6: 2, 8: 0, corresponding to 0, 25, 50, 75 and 100% of the crop and weed respectively. Shoot, root and total dry matter and plant height were analyzed through diagrams applied to replacement series and competitive indices. Soybean showed competitive superiority in coexistence with sudangrass in relation to shoot, root and total dry matter. The intraspecific competition was more significant for the crop and inter-specific competition was more important for the weed.


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