Effect of Dietary Rumen Protected Methionine and/or Choline Supplementation on Rumen Fermentation Characteristics and Productive Performance of Early Lactating Cows

Soltan, Mosaad A.; Mujalli, A.M.; Mandour, Mohamed; Abeer, M. El-Shinway

doi:10.3923/pjn.2012.221.230

Cited by 24 publications

(37 citation statements)

References 9 publications

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“…Lacking effect on milk fat percentage following RPM supplementation was reported earlier with dairy goats (Poljičak Milas & Marenjak 2007) and with dairy cows (Lara et al 2006, Třinácty et al 2006, Yang et al 2010, Soltan et al 2012. However, both (fat content and yield) were negatively affected by supplementation of RPM to early lactating dairy goats (Madsen et al 2005).…”

Section: Milk Yield and Compositionmentioning

confidence: 61%

“…No effect of RPM supplementation was reported on ECM of dairy cows (Girard et al 2005). Contrary to that, supplementing RPM to the diet of dairy cows increased ECM (Soltan et al 2012).…”

Section: Milk Yield and Compositionmentioning

confidence: 64%

“…No differences in feed efficiency were observed in dairy cows supplemented RPM (Noftsger & St-Pierre 2003), while Soltan et al (2012) indicated that RPM improved milk-to-feed ratio by 1.3 % across the experimental period when compared to the control group. Alfalfa hay was fed at a rate of 1.0 kg for all animals.…”

Section: Feed Measurementsmentioning

confidence: 85%

“…Supplementing RPM to the diet of dairy goats increased ECM (Flores et al 2009). Moreover, Ardalan et al (2010) and Soltan et al (2012) suggest that the increased ECM suggests that RPM can positively impact milk energy output when early-lactation curve peaks and drops. No effect of RPM supplementation was reported on ECM of dairy cows (Girard et al 2005).…”

Section: Milk Yield and Compositionmentioning

confidence: 99%

“…Likewise, supplementing RPM in the diets of dairy cows had no effect on dry matter intake or nutrient intake (Lara et al 2006, Kudrna et al 2009). Lacking response in dry matter intake following supplementation of RPM could probably be due to the slight sulfur smell of the rumen protected methionine sources (Soltan et al 2012). On the other hand, increased dry matter intake of lactating ewes with RPM supplementation was possibly due to the increased milk yield, the increased absorption of the most limiting nutrient of the diet, or the improved protein balance and available amino acid profile (Goulas et al 2003).…”

Section: Feed Measurementsmentioning

confidence: 99%

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Effect of rumen-protected methionine on production and composition of early lactating Shami goats milk and growth performance of their kids

Al‐Qaisi

Titi

2014

Arch. Anim. Breed.

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This study was conducted at the Agricultural Research Station of the University of Jordan in the Jordan valley to evaluate the effect of supplementing rumen-protected methionine to early lactating Shami goats on milk production, composition, fatty acid profile, and growth performance of their kids. Twenty-four fresh lactating Shami goats were randomly assigned into three dietary treatment groups (eight each) in a completely randomized design. Diets were a control with no supplements or supplemented with either 2.5, or 5.0 g/head/d rumenprotected methionine. The experiment started exactly after kidding and lasted for 60 days thereafter. Production variables studied were milk production, milk composition, body weights, feed intake, kids weaning weight, and milk fatty acids.Daily milk production and energy corrected milk were not affected by protected me thionine supplementation. Milk Percentages of fat, protein, total solids, and casein were also not affected by protected methionine supplementation. Likewise, fat and protein yields were not different among dietary treatments of protected methionine. No differences in milk fatty acids composition were observed by supplementing rumen protected methionine in the experiment.Feed intake, feed to milk ratio, and final body weight of dams were not changed among treatments. No differences were observed in weaning weights, average daily gain, and milk to gain ratio of kids born to dams in the experiment regardless to sex of kids.In conclusion, results indicated that supplementing rumen protected methionine to dairy goats diet did not improve their milking performance, the composition of their milk, or growth performance of their kids.

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Section: Milk Yield and Compositionmentioning

confidence: 61%

“…No effect of RPM supplementation was reported on ECM of dairy cows (Girard et al 2005). Contrary to that, supplementing RPM to the diet of dairy cows increased ECM (Soltan et al 2012).…”

Section: Milk Yield and Compositionmentioning

confidence: 64%

Section: Feed Measurementsmentioning

confidence: 85%

Section: Milk Yield and Compositionmentioning

confidence: 99%

Section: Feed Measurementsmentioning

confidence: 99%

See 3 more Smart Citations

Effect of rumen-protected methionine on production and composition of early lactating Shami goats milk and growth performance of their kids

Al‐Qaisi

Titi

2014

Arch. Anim. Breed.

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The effect of varying levels of purified condensed tannins on performance, blood profile, meat quality and methane emission in male Bapedi sheep fed grass hay and pellet-based diet

Ng’ambi

Selapa

Brown

et al. 2022

Trop Anim Health Prod

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This study determined the effect of purified condensed tannin inclusion levels in a diet on production, haematological indices, blood biochemical components, meat quality and methane emission by yearling indigenous male Bapedi sheep on a grass hay and sheep pellet-based diet in a 28-day trial. The diets contained similar (P > 0.05) nutrients but with different (P < 0.05) purified condensed tannin supplementation levels. A complete randomized design was used. Twenty-four yearling male Bapedi sheep were assigned to four dietary treatments having different purified condensed tannin levels of 0 (GH80P20PCT0), 30 (GH80P20PCT30), 40 (GH80P20PCT40) and 50 (GH80P20PCT50) g/kg DM. A quadratic type of equation was also used to determine condensed tannin supplementation levels for optimal performance and methane emission reduction by sheep. Supplementing diets with purified condensed tannins did not affect (P > 0.05) diet intake, digestibility and live weight gain of male Bapedi sheep. Supplementing diets with purified condensed tannins did not affect (P > 0.05) blood components of male Bapedi sheep. Inclusion of condensed tannins in the diets did not affect (P > 0.05) Bapedi sheep meat pH and sensory attributes. However, supplementing diets with purified condensed tannins decreased (P < 0.05) methane emission by 51 to 60%. A 49.08 g supplementation level with purified condensed tannins per kg DM diet was calculated, with the use of quadratic equations, to result in the lowest methane emission by male Bapedi sheep. The meat of male Bapedi rams on diets containing 30, 40 or 50 g of purified condensed tannins per kg DM contained higher (P < 0.05) antioxidant activities than those from rams fed a diet without purified condensed tannins. These results indicate that purified condensed tannin supplementation levels of 0, 30, 40 or 50 g/kg DM diet had no adverse effects on growth performance, blood profiles and meat sensory attributes of male Bapedi sheep. However, supplementation levels of 30, 40 or 50 g of purified condensed tannins per kg DM diet reduced methane emission by 51 to 60%, and increased sheep meat antioxidant activity values. Supplementing diets with purified condensed tannins has the potential to reduce methane production and emission by sheep. However, long-term studies are recommended to ascertain the present findings.

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The role of rumen-protected choline in hepatic function and performance of transition dairy cows

2016

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High-producing dairy cows enter a period of negative energy balance during the first weeks of lactation. Energy intake is usually sufficient to cover the increase in energy requirements for fetal growth during the period before calving, but meeting the demand for energy is often difficult during the early stages of lactation. A catabolic state predominates during the transition period, leading to the mobilisation of energy reserves (NEFA and amino acids) that are utilised mainly by the liver and muscle. Increased uptake of mobilised NEFA by the liver, combined with the limited capacity of hepatocytes to either oxidise fatty acids for energy or to incorporate esterified fatty acids into VLDL results in fatty liver syndrome and ketosis. This metabolic disturbance can affect the general health, and it causes economic losses. Different nutritional strategies have been used to restrict negative effects associated with the energy challenge in transition cows. The provision of choline in the form of rumen-protected choline (RPC) can potentially improve liver function by increasing VLDL exportation from the liver. RPC increases gene expression of microsomal TAG transfer protein and APOB100 that are required for VLDL synthesis and secretion. Studies with RPC have looked at gene expression, metabolic hormones, metabolite profiles, milk production and postpartum reproduction. A reduction in liver fat and enhanced milk production has been observed with RPC supplementation. However, the effects of RPC on health and reproduction are equivocal, which could reflect the lack of sufficient dose-response studies.

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Effect of Dietary Rumen Protected Methionine and/or Choline Supplementation on Rumen Fermentation Characteristics and Productive Performance of Early Lactating Cows

Cited by 24 publications

References 9 publications

Effect of rumen-protected methionine on production and composition of early lactating Shami goats milk and growth performance of their kids

Effect of rumen-protected methionine on production and composition of early lactating Shami goats milk and growth performance of their kids

The effect of varying levels of purified condensed tannins on performance, blood profile, meat quality and methane emission in male Bapedi sheep fed grass hay and pellet-based diet

The role of rumen-protected choline in hepatic function and performance of transition dairy cows

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