Intake, digestibility, methane and heat production in bison, wapiti and white-tailed deer

1998 ◽  
Vol 78 (4) ◽  
pp. 681-691 ◽  
Author(s):  
J. K. Galbraith ◽  
G. W. Mathison ◽  
R.J. Hudson ◽  
T. A. McAllister ◽  
K.-J. Cheng
Keyword(s):  
Key Words ◽  
Heat Production ◽  
Methane Production ◽  
Dry Matter ◽  
Methane Emissions ◽  
Factorial Experiment ◽  
Dry Matter Intake ◽  
Energy Requirements

A 3 × 2 factorial experiment was conducted in which the digestibility of alfalfa pellets and methane and heat productions were measured in bison, wapiti and white-tailed deer in February/March 1995 and in April/May 1995. Voluntary dry matter intake (DMI) while animals were individually fed averaged 70, 87 and 68 g kg−0.75 d−1, respectively (P = 0.05), and was generally higher in April/May than in February/March. Corresponding organic digestibilities were 52.9, 54.1 and 49.1% (P = 0.10). There was also a trend (P < 0.1) for fiber digestibilities to be lowest for deer. Methane production (L kg−1 DMI), was 30.1, 23.5, and 15.0 L kg−1 for bison, wapiti and deer, respectively (P = 0.01), with more (P < 0.01) methane being produced in February/March than in April/May (28 vs. 18 L kg−1 DMI). No differences in heat production (kJ kg−0.75) or estimated energy requirements for maintenance could be detected between species, although animals numerically produced 40% more heat (881 vs. 632 kJ kg−0.75, P = 0.13) in April/May when feed intakes were higher than in February/March. It was concluded that DMI of native ungulates is higher in spring than winter and that methane emissions per unit feed consumed were the highest with bison and the least with white-tailed deer. Key words: Bison, deer, wapiti, digestibility, methane, calorimetry

Energy partition, nutritional energy requirements and methane production in F1 Holstein × Gyr bulls, using the respirometric technique

2019 ◽  
Vol 59 (7) ◽  
pp. 1253
Author(s):  
A. L. Ferreira ◽  
A. L. C. C. Borges ◽  
R. C. Mourão ◽  
R. R. Silva ◽  
A. C. A. Duque ◽  
...  
Keyword(s):  
Weight Gain ◽  
Energy Intake ◽  
Heat Production ◽  
Methane Production ◽  
Dry Matter ◽  
Energy Requirements ◽  
Net Energy ◽  
Energy Partition ◽  
Gross Energy ◽  
Metabolisable Energy

The nutritional energy requirements of animals for maintenance and weight gain, such as the energy partition of the diet, were determined in different feeding plans. Fifteen F1 Holstein × Gyr, non-castrated male bovines with a mean initial liveweight of 302 kg were used. The diets were corn silage and concentrate, formulated to enable gains of 100, 500 and 900 g/day, called low, medium and high weight gains, respectively. Tests of digestibility and metabolism were conducted to determine energy losses through faeces, urine and methane emissions. Heat production was determined using respirometry chamber. Net energy for maintenance was calculated as the antilogarithm of the intercept of the regression of the logarithm of the heat production, as a function of the metabolisable energy intake. Retained energy was obtained by subtracting the heat production from the metabolisable energy intake. With the increased consumption of dry matter, there was an increase in faecal and urinary energy loss. Retained energy increased linearly with the metabolisable energy intake. The net energy for gain in the diet did not differ among the treatments, such as the efficiency of use of metabolisable energy for weight gain kg (0.34). The net energy for maintenance was 312 kJ/kg LW0.75, and the metabolisable energy for maintenance was 523 kJ/kg LW0.75. The daily methane production (g/day) increased with the dry matter level and the daily loss represented 5.31% of the gross energy consumption.

scholarly journals Methane emissions from lambs fed kikuyu hay alone or mixtured with lotus hay

2021 ◽  
Vol 29 (1-2) ◽  
pp. 1-9
Author(s):  
Juan Vargas ◽  
Martha Lucia Pabon ◽  
Juan E. Carulla
Keyword(s):  
Drinking Water ◽  
Methane Production ◽  
Dry Matter ◽  
Methane Emissions ◽  
Dry Matter Intake ◽  
Free Access ◽  
Enteric Methane ◽  
Grazing Systems ◽  
Kikuyu Grass ◽  
Lotus Uliginosus

Dietaryinclusionof contain­tanninlegumes mayreduce enteric methane emissioninruminants. Toevaluate methane emissions fromsheep fed with a kikuyu grass (Cenchrus clandestinus) diet partially substitutedwith lotus(Lotus uliginosus), twelve growing lambs, with 23 ± 2 kg average liveweight, were assigned randomly totwo treatments and with three measurement periods in a switchover design. Treatments consisted of 100 %kikuyuhay or 70 %kikuyu hay: 30 %lotus hay and with 6 lambs per treatment. Each of three periods lasted 20 d, where thefirst 15 d were for acclimatization and the last 5 d for measurements. Lambs were placed in metabolic cages and fedonce a day (8 AM) at 90 %of their voluntary feedintake, with free access to drinking water. Feedintake, fecalproductionandfeeddigestibility were determinedat eachperiod. Methane productionwas measuredfor eachtreatment group of 6 lambs using the poly­tunnel technique. Legume addition reduced total methane production(27.6vs.23.1 g animal­1; p < 0.01), methane production per dry matter intake (DMI) (18.8 vs. 12.2 g kg­1DMI; p <0.01), methane production per digestible OM(DOM) (36.1vs. 23.4 g kg­1DOM; p < 0.01) and methane productionper digestible NDF (DNDF) (43.5vs. 34.0 g kg­1DNDF; p < 0.01). In conclusion, lotus inclusion in pasture systemscould be a suitable legume to reduce methane emissions in grazing systems.

HIGH MOISTURE GROUND EAR CORN, HIGH MOISTURE BARLEY OR SODIUM HYDROXIDE TREATED BARLEY FOR LACTATING COWS: MILK PRODUCTION AND RATION UTILIZATION

1983 ◽  
Vol 63 (1) ◽  
pp. 155-162 ◽  
Author(s):  
L. KUNG Jr. ◽  
B. W. JESSE ◽  
J. W. THOMAS ◽  
J. T. HUBER ◽  
R. S. EMERY
Keyword(s):  
Sodium Hydroxide ◽  
Key Words ◽  
Milk Production ◽  
Dry Matter ◽  
Milk Composition ◽  
Dry Matter Intake ◽  
High Moisture ◽  
Acid Detergent Fiber ◽  
Lactating Cows ◽  
Fecal Ph

Whole barley was treated with sodium hydroxide (NaOH) in laboratory trials. Dry matter disappearance from nylon bags in the rumen of whole barley treated with 2.5, 3.5, or 4.9% NaOH for 30 h was 59.6, 72.4, and 93.0%, respectively, compared with 82.2% for untreated ground barley. In a subsequent lactation trial, 24 Holstein cows (eight per treatment) were fed high moisture ground ear corn, high moisture rolled barley or high moisture whole barley treated with 3.5% NaOH. Milk persistencies tended to be greater for cows fed high moisture rolled barley, next for ground ear corn and least for NaOH-treated barley. Milk composition was similar for all treatments. Dry matter intake was greatest for cows fed ground ear corn and lower for those fed the barley diets. Alpha-linked glucose and pH of feces were similar for cows fed ground ear corn and high moisture rolled barley diets, but fecal pH was lower and alpha-linked glucose concentrations three times greater for NaOH-treated barley. Digestibility percents of dry matter, acid detergent fiber and nitrogen were 61.4, 25.3, 64.7 for ground ear corn; 64.4, 38.0, 67.1 for high moisture rolled barley; and 56.8, 43.2, 54.8 for NaOH-treated barley, respectively. Rumen grain turnover estimated by excretion of ytterbium in feces was greatest for NaOH-treated barley (9.09%/h), intermediate for ground ear corn (6.10%/h) and lowest for high moisture rolled barley (4.93%/h). Key words: Dairy, sodium hydroxide, high moisture grains

EVALUATION OF TIMOTHY CULTIVARS FOR VOLUNTARY INTAKE AND NUTRIENT COMPONENTS

1988 ◽  
Vol 68 (4) ◽  
pp. 1121-1129 ◽  
Author(s):  
W. N. MASON ◽  
P. M. FLIPOT
Keyword(s):  
Key Words ◽  
Dry Matter ◽  
Phleum Pratense ◽  
Dry Matter Intake ◽  
Dry Matter Yield ◽  
Dry Matter Digestibility ◽  
Flower Stage ◽  
Voluntary Intake ◽  
Phleum Pratense L

Five timothy (Phleum pratense L.) cultivars, Clair, Champ, Milton, Climax and Bounty, were harvested at first flower stage during 2 consecutive years and in the regrowth for 1 yr. The forages were each offered as hay to 15 young rams to evaluate voluntary intake. Five animals were used to determine initial harvest dry matter digestibility. The cultivars varied significantly in voluntary intake at first flower stage. The highest intake (g kg−0.75 d−1) averaged for the years was obtained in the early cultivar Champ (65.9), which was 10% more than that of the medium-late cultivar Climax. The cultivars did not differ significantly in dry matter digestibility. In the regrowth, the relative intakes of the cultivars were essentially reversed from that of the initial harvest. The voluntary intake was substantially higher but the differences among forages were less marked. Climax regrowth voluntary intake was higher (P < 0.05) than all cultivars, except Bounty. A 15% range in digestible dry matter intake was present among cultivars. The ranking of the culivars for digestible dry matter was different than for dry matter yield. Key words: Timothy, Phleum pratense L., voluntary intake, dry matter digestibility

Effect of added dietary nitrate and elemental sulfur on wool growth and methane emission of Merino lambs

2013 ◽  
Vol 53 (11) ◽  
pp. 1195 ◽  
Author(s):  
L. Li ◽  
C. I. Silveira ◽  
J. V. Nolan ◽  
I. R. Godwin ◽  
R. A. Leng ◽  
...  
Keyword(s):  
Methane Emission ◽  
Methane Production ◽  
Dry Matter ◽  
Elemental Sulfur ◽  
Methane Yield ◽  
Dry Matter Intake ◽  
Feed Conversion ◽  
Dietary Nitrate ◽  
Wool Growth ◽  
Nutrient Utilisation

The effects of dietary nitrate (NO3) and elemental sulfur (S) on nutrient utilisation, productivity, and methane emission of Merino lambs were investigated. Forty-four lambs were randomly allocated to four groups (n = 11) fed isonitrogenous and isoenergetic diets. The basal feed was supplemented with 1% urea + 0.18% S (T1), 1.88% NO3 + 0% S (T2), 1.88% NO3 + 0.18% S (T3), or 1.88% NO3 + 0.40% S (T4). Retention of S was improved by increasing the content of elemental S in the NO3-containing diet (P < 0.001), yet the N retention (g/day) by the animal, and the N and S content of wool (%), were not altered by S supplementation (P > 0.05). Dry matter intake, liveweight gain, and feed conversion ratio did not differ (P > 0.05) between treatments. Replacing urea with NO3 improved the rate of clean wool growth by 37% (P < 0.001, T1 vs T3). Clean wool growth increased by 26% (P < 0.001) when the S content of the NO3-containing diet was increased from 0 to 0.18% (T2 vs T3). Methane production (g/day) and methane yield (g/kg DM intake) were reduced (P < 0.05) by 24% when urea was replaced by NO3 (T1 vs T3). The addition of 0.4% S to a diet containing 1.88% NO3 also reduced methane production (P = 0.021) and methane yield (P = 0.028). In conclusion, the addition of 1.88% NO3 and 0.18% elemental S to a total mixed diet increased clean wool production and reduced methane production. However, there was no evidence of inter-relationships between NO3 and S.

Energy metabolism of oiled muskrats

1974 ◽  
Vol 52 (8) ◽  
pp. 1057-1062 ◽  
Author(s):  
E. H. McEwan ◽  
N. Aitchison ◽  
P. E. Whitehead
Keyword(s):  
Thermal Conductivity ◽  
Energy Metabolism ◽  
Heat Production ◽  
Thermal Conduction ◽  
Dry Matter ◽  
Fold Increase ◽  
Dry Matter Intake ◽  
Natural Conditions ◽  
Ambient Temperatures ◽  
Feeding Activities

The heat production of muskrats (Ondatra zibethica), oiled with varying quantities of crude oil, was measured at three ambient temperatures, −5, 5, and 10C on days 0, 1, and 3 after oiling. On day 0, the heat production of muskrats oiled with 1.9 to 42.3 g of oil was from 14 to 119% higher, respectively, than the non-oiled muskrats. Three days after oiling, the metabolic rate of oiled muskrats was about the same as the control values. A similar trend was determined for ambient temperatures of 5 and 10C. Heavy oiling increased the thermal conduction of muskrats by as much as 122%. To compensate for the loss of insulation and increased thermal conductivity of the fur, there was a 2.5-fold increase in dry-matter intake. In view of their dependence on water, both for feeding activities and a place for refuge, it is doubtful if muskrats exposed to moderate quantities of oil could survive under natural conditions.

Use of triticale silage in diets for growing steers

1992 ◽  
Vol 72 (1) ◽  
pp. 181-184 ◽  
Author(s):  
D. R. ZoBell ◽  
L. A. Goonewardene ◽  
D. F. Engstrom
Keyword(s):  
Key Words ◽  
Feed Efficiency ◽  
Dry Matter ◽  
Average Daily Gain ◽  
Barley Grain ◽  
Dry Matter Intake ◽  
High Moisture ◽  
Key Words Barley ◽  
Barley Silage ◽  
Daily Gain

A total of 120 steers were fed either barley silage (BS) or triticale silage (TS) combined with barley (B) or high-moisture barley (HMB) grain, as a total mixed ration in a 2 × 2 factorial design with three replications. The barley and triticale yields were 9.8 and 8.7 t ha−1, respectively. No differences (P > 0.05) in weight, average daily gain, dry matter intake or feed efficiency were observed for treatments or interactions. TS can be used to replace BS at moderate levels in growing steer rations containing barley grain. Key words: Barley, triticale, silage, steers, performance

scholarly journals Flavonoids and their aromatic derivatives in Piper betle powder promote in vitro methane mitigation in a variety of diets

2020 ◽  
Vol 44 ◽  
Author(s):  
Rayudika Aprilia Patindra Purba ◽  
Siwaporn Paengkoum ◽  
Chalermpon Yuangklang ◽  
Pramote Paengkoum
Keyword(s):  
Methane Production ◽  
Dry Matter ◽  
Methane Emissions ◽  
Gas Production ◽  
Piper Betle ◽  
Ruminal Fermentation ◽  
Perennial Plant ◽  
Rumen Ph ◽  
Lactating Goats

ABSTRACT At present, there is little information regarding whether supplementation with Piper betle powder (PBP) and sunflower oil (SFO) has a synergistic effect on lowering methane emissions without negatively impacting ruminal fermentation. This study investigated the effects of PBP, supplemented either with or without SFO, on biogas release, fermentation end-products, and microorganisms in the rumen of lactating goats. The treatments were run in a completely randomized 3 × 5 factorial arrangement, whereby 0, 15, and 30 mg SFO were combined with 0, 15, 30, 45, and 60 mg PBP on a dry matter basis. The outcomes were assessed in vitro. PBP was obtained from the perennial plant Piper betle L., which is an abundant source of flavonoids and their aromatic derivatives. SFO, which reduces dietary methane emissions, was supplemented to confirm whether it interacted with other nutrients in the ruminant diet. SFO × PBP significantly (p < 0.05) decreased methane production, enhanced total volatile fatty acid concentrations, and decreased the number of rumen protozoa. We found that 15-30 mg, but not 45-60 mg, PBP combined with 0, 15, and 30 mg SFO increased (p < 0.05) total gas production (including CO2) from fermentation. However, our results suggested that at least 45 mg PBP, either alone or combined with SFO, was required to reduce ammonia-N (p < 0.05). Not all treatments affected rumen pH. In conclusion, supplementing PBP (< 30 mg), either alone or combined with SFO, has a suppressing effect on methane production while preserving an optimum rate of rumen fermentation.

scholarly journals Energy partitioning and methane emission by sheep fed sorghum silages at different maturation stages

2015 ◽  
Vol 67 (3) ◽  
pp. 790-800 ◽  
Author(s):  
F.S. Machado ◽  
N.M. Rodríguez ◽  
L.C. Gonçalves ◽  
J.A.S. Rodrigues ◽  
M.N. Ribas ◽  
...  
Keyword(s):  
Energy Intake ◽  
Methane Production ◽  
Dry Matter ◽  
Methane Emissions ◽  
Energy Partitioning ◽  
Metabolizable Energy ◽  
Energy Utilization ◽  
Maturation Stage ◽  
Maturation Stages ◽  
Gross Energy

Energy partitioning and methane production by sheep fed silages of three commercially available sorghum hybrids (BRS 610, BR 700 and BRS 655) harvested at three maturation stages (milk, soft dough and floury) were evaluated in open circuit respiration chambers. A complete randomized design was used in a 3 × 3 (hybrids × maturity stages) factorial arrangement, and the means were compared by the Student-Newman-Keuls (SNK) test (P<0.05). The intake of dry matter, digestible dry matter, gross energy, digestible energy and metabolizable energy were not affected by maturation stage, but were influenced by hybrid. The net energy intake was influenced by maturity and sorghum genetics. The fecal output represented the main source of energy loss, as percentage of gross energy intake (48% to 52%), followed by heat increment (10% to 19%), methane emissions (4% to 6%) and urine (1% to 2%). There were no differences (P>0.10) among the treatments for the apparent digestibility of gross energy and metabolizability (qm). An interaction (P<0.05) between sorghum hybrid and maturation stages was observed for the efficiency of metabolizable energy utilization for maintenance (km), which ranged between 0.53 and 0.78. No differences (P>0.10) among treatments occurred in the daily methane production. There is substantial genetic diversity within sorghum species, determining different nutritional values. Sorghum genetics and maturity at harvest should not be an opportunity to reduce the contribution of agriculture to methane emissions.

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