Estimation of faecal output, digestibility, and intake using a controlled release capsule of alkanes in early and late lactation dairy cows fed two levels of concentrate

Ouellet, D.R.; Petit, H.V.; Veira, D. M.; Charmley, E.

doi:10.4141/a03-041

Cited by 11 publications

(8 citation statements)

References 23 publications

(21 reference statements)

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“…Feces and urine were collected from each pig during the last three days of the experiment [ 13 ], when the experiment had run for a period of four weeks excluding adaptation period. Sacks were suspended underneath the pens, covering the whole surface area to ensure a total recovery of feces [ 14 ]. A total of 250 g of feces and 250 mL of urine were collected from each pig within an hour of excretion.…”

Section: Methodsmentioning

confidence: 99%

Fiber source and inclusion level affects characteristics of excreta from growing pigs

Chimonyo

Ndou

Bakare

2018

Asian-Australas J Anim Sci

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ObjectiveThe objective of the study was to determine the influence of varying fibrous diets on fecal characteristics of growing pigs.MethodsA total of 104 pigs (initial weight 18±2.0 kg) were used in the study. They were housed in individual pens and fed on diets containing maize cob, grass hay, lucerne hay, maize stover, and sunflower husk. These fibers were included at 0, 80, 160, 240, 320 and 400 g/kg. Fecal and urine samples were collected.ResultsFecal output was largest amongst pigs fed on diets containing grass hay and maize stover (p<0.05). Nitrogen content was highest in feces from pigs fed on sunflower husk (p< 0.05). Pigs fed on diets containing maize stover and maize cobs produced the largest concentrations of short chain fatty acids. Acetate concentration was high in feces of pigs fed maize stover than those fed grass hay and lucerne hay (p<0.05). As the level of fiber inclusion increased, fecal consistency and nitrogen content increased linearly (p<0.05). Urea nitrogen decreased as the inclusion level increased across all the fibers (p<0.05), with maize cobs containing the largest content of urea nitrogen. As dietary fiber content increased, fecal nitrogen content also increased (p<0.05).ConclusionIt was concluded that different fiber sources influence fecal characteristics, thereby having different implications on pig waste management. It is vital to monitor fiber inclusion thresholds so as to easily manage environmental pollutants such as butyrate that contribute to odors.

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Section: Methodsmentioning

confidence: 99%

Fiber source and inclusion level affects characteristics of excreta from growing pigs

Chimonyo

Ndou

Bakare

2018

Asian-Australas J Anim Sci

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“…Steers were weighed at 08.00 hour at the beginning of the experiment. Nutrient digestion coefficients were calculated by the marker ratio technique using an n‐alkane capsule (Captec ® , Captec Ltd, Auckland, New Zealand) (Ouellet et al. 2004).…”

Section: Methodsmentioning

confidence: 99%

“…Steers were weighed at 08.00 hour at the beginning of the experiment. Nutrient digestion coefficients were calculated by the marker ratio technique using an Table 2 Effects of urea-treated potato pulp (PP) ensiled with beet pulp pellets or wheat bran pellets, and flake density of corn grain supplemented with PP silage on feed intake and digestibility in beef steers (Ouellet et al 2004). Steers were dosed with the capsule containing n-dotriacontane (C32) and nhexatriacontane (C36) through the ruminal cannula at the time of body weight measurement.…”

Section: Animals and Proceduresmentioning

confidence: 99%

The effects of urea‐treated potato pulp (PP) ensiled with beet pulp or wheat bran pellets to reduce moisture of PP and flake density of corn grain supplemented with the PP silage on digestibility and ruminal fermentation in beef steers

Sugimoto

Saito

Ooi

2010

Animal Science Journal

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The effects of adding beet pulp or wheat bran to urea-treated potato pulp (PP) in order to reduce moisture of PP silage and flake density of corn grain on digestibility and ruminal fermentation in beef steers were studied in a split-plot design experiment. The whole-plot treatments were PP silage mixed with 0% added pellets (CON), 9% (as-fed basis) beet pulp pellets (BP) or 9% (as-fed basis) wheat bran pellets (WB) as water-absorbing materials. The subplot treatments consisted of supplements formulated to contain either high-density corn (HDC) or low-density corn (LDC). BP steers consumed more (BP vs WB, P = 0.011) concentrate than did WB steers, whereas hay intake did not differ between the treatments. Dry matter (BP vs WB, P = 0.023) and organic matter (BP vs WB, P = 0.029) digestibility were higher for BP steers than for WB steers. Starch digestibility was higher (P = 0.006) for LDC than for HDC. There were no differences in the concentration of ruminal ammonia nitrogen among the treatments. Molar proportions of ruminal acetate were higher for BP steers than for WB steers (BP vs WB, P = 0.030). Conversely, molar proportions of propionate were lower for BP steers than for WB steers (BP vs WB, P = 0.044). Flake density of corn did not affect ruminal characteristics. In conclusion, from the viewpoint of feed intake and digestibility, BP is superior to WB as a moisture control material for urea-treated PP silage, and flake density of corn supplemented with urea-treated PP silage does not alter ruminal fermentation.

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“…Residual feed was collected and weighed each morning before feeding. The nutrients digestion coefficients were calculated by the marker ratio technique using an n‐alkane capsule (Captec Alkane CRC ® , Captec Ltd, Auckland, New Zealand) (Ouellet et al . 2004).…”

Section: Methodsmentioning

confidence: 99%

The effects of protein sources supplemented with urea‐treated potato pulp (PP) silage and feeding levels of the PP silage‐based concentrate on feed intake, digestibility and ruminal fermentation in beef steers

Sugimoto

Kanamoto

Chiba

et al. 2008

Animal Science Journal

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Six Japanese Black (Wagyu) steers (average initial weight 467 Ϯ 45 kg) fitted with a ruminal cannula were used in a split-plot design experiment comprising a 3 ¥ 3 Latin square design (whole-plot) and a randomized block design (subplot). The whole-plot treatments were three different feeding levels of urea-treated potato pulp (PP) silage-based concentrate: 1.00%, 1.75% and 2.50% of body weight (BW) (on a dry matter (DM) basis). The subplot treatments consisted of the concentrate formulated to contain either soybean meal (SBM) as a rapidly rumen-degraded protein source or corn gluten meal (CGM) as a slowly degraded protein source. Dry matter intake tended to be lower (P = 0.071) for CGM (8.9 kg/day) than for SBM (9.4 kg/day). Protein sources had no significant effect on digestibility and in situ degradation. Ruminal ammonia nitrogen (NH3-N) was lower (P = 0.033) for CGM (7.5 mg/dL) than for SBM (9.5 mg/dL). Protein sources did not affect ruminal pH and the total volatile fatty acids (VFA) concentrations. The molar proportions of ruminal acetate and valerate were higher (P = 0.032) for CGM than for SBM. The maximum daily intake of the PP silage-based concentrate expressed as a percentage of BW was approximately 1.4% of BW. Dry matter intake was higher (P = 0.046) for steers fed at 1.0% of BW of the PP silage-based concentrate than for steers fed at 1.75% or 2.5% of BW of the concentrate. The feeding levels of the PP silage-based concentrate had no effect on DM and nutrients digestibility, except for crude protein (CP) digestibility. CP digestibility tended to be lower (P = 0.071) for steers fed at 1.75% of BW of the PP silage-based concentrate than for steers fed at 1.0% or 2.5% of BW of the concentrate. The feeding levels of the PP silage-based concentrate also did not affect the in situ degradation parameter of hay and PP silage. The feeding levels of the PP silage-based concentrate did not affect ruminal pH, NH3-N and total VFA concentrations. The molar proportion of acetate was highest for steers fed at 1.0% of BW of the concentrate. In conclusion, in the urea-treated PP silage-based concentrate, CGM seems to be more effective than SBM for stabilizing the ruminal NH3-N concentration and to be advantageous for fiber digestion in the rumen. The feeding levels of the PP silage-based concentrate did not change the amount of VFA production in the rumen and the DM digestibility. Science †Potato pulp was ensiled for 6 months with urea (0.5%, as fed-basis) and beet pulp (9%, as-fed basis) before it was fed to the steers. M. SUGIMOTO et al.Animal Science Journal (2008) 79, 443-452 †Potato pulp silage was ensiled for 6 months with urea (0.5%, as fed-basis) and beet pulp (9%, as-fed basis) before it was fed to the steers. PROTEIN SOURCES WITH UREA-TREATED POTATO PULP 445No supplementation level ¥ diet interactions were detected (P Ն 0.05). ADF, acid detergent fiber; CGM, corn gluten meal; CP crude protein; DM, dry matter; EE, ether extract; NDF, neutral detergent fiber; OM, organic matter; SBM, soybean meal; s.e., standar...

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Estimation of faecal output, digestibility, and intake using a controlled release capsule of alkanes in early and late lactation dairy cows fed two levels of concentrate

Cited by 11 publications

References 23 publications

Fiber source and inclusion level affects characteristics of excreta from growing pigs

Fiber source and inclusion level affects characteristics of excreta from growing pigs

The effects of urea‐treated potato pulp (PP) ensiled with beet pulp or wheat bran pellets to reduce moisture of PP and flake density of corn grain supplemented with the PP silage on digestibility and ruminal fermentation in beef steers

The effects of protein sources supplemented with urea‐treated potato pulp (PP) silage and feeding levels of the PP silage‐based concentrate on feed intake, digestibility and ruminal fermentation in beef steers

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