<i>In vitro</i>gas production provides effective method for assessing ruminant feeds

Getachew, G.; DePeters, E.J.; Robinson, P.H.

doi:10.3733/ca.v058n01p54

Cited by 54 publications

(38 citation statements)

References 12 publications

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“…The PF for PWS and RTS were within the theoretically possible value of 4.41 (Blummel et al, 1997). Higher values in rest of the feedstuffs may be due tannins and other incrementing factors (Getachew et al, 2004).…”

Section: Microbial Biomass Production and Partitioning Factormentioning

confidence: 67%

In Vitro Assessment of Nutritive Value of Unconventional Feed Resource as Livestock Feed

Banakar¹,

Ally²,

Lokesh³

et al. 2017

Int. J. Livest. Res.

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Section: Microbial Biomass Production and Partitioning Factormentioning

confidence: 67%

In Vitro Assessment of Nutritive Value of Unconventional Feed Resource as Livestock Feed

Banakar¹,

Ally²,

Lokesh³

et al. 2017

Int. J. Livest. Res.

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“…Getachew et al (2004) observaram alta correlação entre a extensão de produção de gases e a composição química dos alimentos. Os gases produzidos durante o processo fermentativo são principalmente o CO 2 e o CH 4 , e a sua formação é resultado principalmente da fermentação dos carboidratos dos alimentos à AGCC (Jenkins, 1993;Cone e Van Gelder, 1999).…”

Section: Resultsunclassified

Cinética de fermentação ruminal in vitro de dietas com inclusão do resíduo de feijão (Phaseolus vulgaris L.) substituindo a torta de algodão

et al. 2017

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Palavras-chave adicionaisDegradação. Latência. Parâmetros. Produção de gás.resUMo Objetivou-se com esta pesquisa avaliar os parâmetros fermentativos ruminal in vitro da inclusão de resíduo de feijão (Phaseolus vulgaris L.) em substituição à torta de algodão. Os tratamentos experimentais foram constituídos pela substituição da torta de algodão nos níveis de 0, 33, 66 e 100% por resíduo de feijão. O preparo das amostras foi realizado utilizando 500 mg de amostra seca ao ar, moída a 1 mm, onde imediatamente após a adição do inoculo, os frascos receberam tampa de borracha, lacre de alumínio e foram colocados em banho-maria, com agitação orbital, a 39ºC. As leituras de pressão foram realizadas por meio de um transdutor de pressão nos seguintes tempos: 1, 2, 4, 6, 8, 10, 12, 15, 18, 24, 30, 36, 48, 60, 72, 84 e 96 horas. A cinética da produção cumulativa dos gases foi analisada empregando-se o modelo logístico bicompartimental. O volume final de gases da fração de carboidratos não-fibrosos das dietas não apresentou efeito significativo (p>0,05), enquanto a taxa de degradação da fração de carboidratos não-fibrosos, o volume de gases da fração de carboidratos fibrosos, a taxa de degradação da fração de carboidratos não-fibrosos e a latência apresentaram aumento linear significativo (p<0,05). A adição do resíduo de feijão em substituição à torta de algodão potencializa uma maior disponibilização de nutrientes devido à melhora dos parâmetros ruminais in vitro. The objective of this research was to evaluate the ruminal fermentation parameters of in vitro bean (Phaseolus vulgaris L.) residue inclusion in replacement of cottonseed meal. The experimental treatments were the replacement of cottonseed meal at levels of 0, 33, 66 and 100% by bean residue. The sample preparation was performed using 500 mg of air dried sample, ground to 1 mm, inwhich, right after the addition of the inoculum, flasks received rubber stopper, aluminum seal and were placed in a water bath, with orbital shaking, at 39ºC. Pressure readings were taken using a pressure transducer at the following times: 1, 2, 4, 6, 8, 10, 12, 15, 18, 24, 30, 36, 48, 60, 72, 84 and 96 hours. The kinetics of cumulative production of gas was analyzed using a logistic two-compartment model. The final gas volume fraction of non-fiber carbohydrate diets had no significant effect (p>0.05), while the rate of degradation of the fraction of non-fibrous carbohydrates, the volume fraction of fiber carbohydrates gases, the degradation rate of the fraction of non-fibrous carbohydrates and latency showed a significant linear increase (p<0.05). The addition of the bean residue to replace cotton cake potentiates a greater availability of nutrients because of an improved in vitro ruminal fermentation.

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“…Getachew et al (2004) reported lower VFA production by adding CT in batch culture of mixed rumen microorganisms. The variability in VFA molar proportion might be due to variations in concentration of cyanide and tannins present in the experimental diets.…”

Section: Discussionmentioning

confidence: 99%

Efectos de la suplementación con peladuras y hojas de yuca y tallos de caupí sobre el ambiente ruminal y parámetros sanguíneos de cabras Enanas del África Occidental

et al. 2017

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sUMMAryThis experiment was conducted to evaluate the effects of supplementing cassava peels with cassava leaves and cowpea haulms on rumen fermentation and blood metabolites of West African dwarf (WAD) goats. Thirty West African dwarf bucks aged 8±1.3 months with an average body weight of 6.06±0.02 kg were used in a completely randomized experiment. The goats were randomly assigned to one of the five dietary treatments which consisted of milled cassava peels, cassava leaves and cowpea haulms in different ratios of 700:100:175 (T1); 500:200:275 (T2); 300:300:375 (T3) and 100:400:475 (T4) g/kg DM respectively. A standard diet formulated to meet the nutrient requirements of the animals with no cassava and cowpea haulms was used as the control diet (T5). Data collected was subjected to analysis of variance using the general linear model procedure of SAS. The results obtained indicated that the highest dietary crude protein was obtained in treatment 5 (206 g/kg) followed by treatment 4 (200 g/kg). Treatment 1 had higher neutral detergent fibre (660 g/kg) and hydrocyanide (30.00 mg/kg) contents. At 0 hr post-feeding, NH 3 -N values significantly ranged (L, Q, C: p<0.05) from 8.50 % in treatment 1 to 15.67 % in treatment 4. The acetic and propionic acid content was highest (C: p<0.05) in treatment 1 with values of 68.17 mol/100ml and 21.55 mol/100 ml, respectively. Total fungi counts were similar in treatments 3 and 5, but significantly different (Q, C: p<0.05) from other treatments. The acetic acid values significantly (Q: p<0.01; C: p<0.05) decreased from 63.70 mol/100 ml in treatment 1 to 62.49 mol/100ml in treatment 3; decline further to 61.78 mol/100ml in treatment 4. Values for total fungi counts ranged from 0.20 (cfu/ml x106) in treatment 2 to 0.60 (cfu/ml x106) in treatment 5. Packed cell volume (PCV) values ranged from 21.50 % in treatment 3 to 31.50 % in treatment 1. Haemoglobin concentration was highest in treatment 2 with values of 10.25 g/dl resulting in a significant linear and cubic trend. At the end of the experiment, there was a sharp decline in the PCV values of the goats in treatments 1, 2 and 5. Hb concentration values followed a similar trend though not significantly different (L, Q, C: p>0.05). RBC values significantly (L: p<0.01) increased as the levels of inclusion of cassava peels reduced. Total protein and globulin ranged from 53.30 to 67.30 (g/dl) and 22.00 to 34.60 (g/dl) respectively and were significantly (C: p<0.01; L, Q, C: p<0.01, 0.05) different. The study revealed that supplementing cassava peels with cassava leaves and cowpea haulms as protein sources has no negative effects on rumen fermentation and blood biochemical parameters of West African dwarf goats. Recibido

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In vitrogas production provides effective method for assessing ruminant feeds

Cited by 54 publications

References 12 publications

In Vitro Assessment of Nutritive Value of Unconventional Feed Resource as Livestock Feed

In Vitro Assessment of Nutritive Value of Unconventional Feed Resource as Livestock Feed

Cinética de fermentação ruminal in vitro de dietas com inclusão do resíduo de feijão (Phaseolus vulgaris L.) substituindo a torta de algodão

Efectos de la suplementación con peladuras y hojas de yuca y tallos de caupí sobre el ambiente ruminal y parámetros sanguíneos de cabras Enanas del África Occidental

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