Influence of corn silage supplementation before alfalfa grazing on ruminal environment in relation to the occurrence of frothy bloat in cattle

Bretschneider, Gustavo; Peralta, María De Los Ángeles Maldonado; Santini, F.J.; Fay, J. P.; Faverín, Claudia

doi:10.1016/j.anifeedsci.2006.08.019

Cited by 12 publications

(6 citation statements)

References 38 publications

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“…The risk of pasture bloat is negligible when cattle graze pastures with grass. Feeding corn silage or grass hay to cattle before turning them onto alfalfa pasture reduces the incidence of bloat substantially [ 113 , 114 ]. However, beef cattle and sheep are usually not (or not regularly) supplemented during the grazing season.…”

Section: Management Strategies To Reduce Bloat Incidence On Alfalfmentioning

confidence: 99%

The Role of Proanthocyanidins Complex in Structure and Nutrition Interaction in Alfalfa Forage

Jonker¹,

Yu²

2016

IJMS

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Alfalfa (Medicago sativa L.) is one of the main forages grown in the world. Alfalfa is a winter hardy, drought tolerant, N-fixing legume with a good longevity, high yield, high nutrient levels, high digestibility, unique structural to non-structural components ratio, high dry matter intake, and high animal productivity per hectare. However, its main limitation is its excessively rapid initial rate of protein degradation in the rumen, which results in pasture bloat and inefficient use of protein with consequent excessive excretions of nitrogen into the environment. Proanthocyanidins are secondary plant metabolites that can bind with protein and thereby reduce the rate and extent of ruminal protein degradation. However, these secondary metabolites do not accumulate in alfalfa. This review aims to firstly describe the events involved in the rapid release of protein from alfalfa and its effect on ruminant nutrition, environmental pollution, and pasture bloat; secondly, to describe occurrence, structure, functions and benefits of moderate amounts of proanthocyanidin; and finally, to describe the development of alfalfa which accumulates moderate amounts of proanthocyanidins. The emphasis of this review focuses on the role of proanthocyanidins compounds in structure and nutrition interaction in ruminant livestock systems.

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Section: Management Strategies To Reduce Bloat Incidence On Alfalfmentioning

confidence: 99%

The Role of Proanthocyanidins Complex in Structure and Nutrition Interaction in Alfalfa Forage

Jonker¹,

Yu²

2016

IJMS

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“…Because of its high fiber content, WPCS supplementation was suggested as a means of increasing the ruminal pH of cattle under grazing conditions (23). However, reports by Bretschneider et al (24) showed that the above-mentioned feeding strategy was unable to modify the ruminal pH of cattle grazing alfalfa-dominant pastures. The authors partially explained the finding by suggesting that WPCS particle size was not long enough to stimulate mastication.…”

Section: Discussionmentioning

confidence: 99%

“…The authors partially explained the finding by suggesting that WPCS particle size was not long enough to stimulate mastication. For this trial, corn plants were harvested as WPCS using a kernel processor, which also reduced particle size (24). Therefore, in order to maintain rumen health and functions, coarsely chopped alfalfa hay (mean particle length: 40 mm) was added to the WPCS.…”

Section: Discussionmentioning

confidence: 99%

Productive response to two concentrate allocation strategies in dairy cows grazing with restricted pasture allowance

Bretschneider¹,

Salado²,

Cuatrín³

et al. 2019

Turk J Vet Anim Sci

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The objective of this study was to compare the effects of two concentrate allotment strategies on the performance of dairy cows grazing on restricted pasture and supplemented with conserved forage. Dairy cows fed equal amounts of concentrate (fixed daily rate: 5.5 kg DM/cow) were compared to cows supplemented with concentrate according to their lactation stage as follows: 10.0, 5.0, and 1.5 kg DM/cow daily during early, mid, and late lactation, respectively (average daily dose: 5.5 kg DM/cow). There was a supplementation strategy × lactation stage interaction (P < 0.05) for energy-corrected milk (ECM). For early lactation cows, supplementation at a variable rate increased ECM yield by 14.61% (P < 0.05). There was a supplementation strategy × lactation stage interaction (P < 0.05) for body weight change. At late lactation stage, cows supplemented at a fixed rate gained weight (+ 0.16 kg/day), whereas those supplemented at a variable rate lost weight (-0.08 kg/day; P < 0.05). No significant effect was found for body condition score. The prioritization of milk production rather than the attenuation of body reserve mobilization suggests that concentrate allowance based on lactation stage may be unsuitable for minimizing the negative energy balance in early lactation cows.

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“…TMR silage had higher pH than WPC silage (4.38 vs. 3.81; P = 0.007). Usually, corn silage pH values range between 3.7 and 4.2 (Bretschneider et al 2001, 2007, Kung and Shaver 2001. In this study, pH values were close to the lower and the upper range values cited above.…”

Section: Resultsmentioning

confidence: 99%

Effect of ensiling a total mixed ration on feed quality for cattle in smallholder dairy farms

et al. 2015

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Efecto de ensilar una ración totalmente mezclada sobre la calidad nutricional para el ganado en pequeñas explotaciones lecheras G Bretschneider * , J Mattera, A Cuatrin, D Arias, R WanzenriedInstituto Nacional de Tecnología Agropecuaria, Estación Experimental Agropecuaria Rafaela, Santa Fe, Argentina. RESUMENEl objetivo de este estudio fue determinar el impacto del ensilado sobre la composición química y las características fermentativas y sensoriales de una ración totalmente mezclada (TMR). La planta entera de maíz (WPC) fue ensilada sola, como control, o combinada con otros alimentos disponibles en la región. Los alimentos ensilados se almacenaron en minisilos durante 75 días. No se observó desarrollo de moho. La variable de color se calificó como buena para ambos tratamientos, mientras que el olor se calificó como moderado para el ensilaje de TMR y bueno para el ensilaje de WPC. No hubo diferencias en el patrón y la tasa de disminución del pH entre los tratamientos. Sin embargo, los valores promedios de pH difirieron (P < 0,01; 3.81 vs. 4.38) entre los ensilajes de TMR y de WPC, respectivamente. La concentración de materia seca (MS) (36,58 vs. 64,25 %; P = 0,001), proteína bruta (9,89 vs. 18,15%; P = 0,005) y energía metabolizable (P = 0,03; 2,51 vs. 2,80 Mcal/kg MS) resultó, como era esperado, mayor para el ensilaje de TMR. El contenido de fibra detergente neutro disminuyó durante el almacenamiento, aunque a una velocidad diferente (P = 0,04) para cada tratamiento. Expresada como porcentaje/día, la tasa de disminución fue -0,16 y -0,05 para los ensilajes de WPC y de TMR, respectivamente. Se sugiere que el ensilado de TMR es una tecnología simple y de bajo costo que podría ayudar a mejorar, mediante una mejor alimentación del ganado lechero, los ingresos económicos de los pequeños productores lecheros.Palabras claves: ración totalmente mezclada, ensilaje de maíz, lechería, pequeños productores. SUMMARYThe aim of this study was to assess the impact of ensiling a total mixed ration (TMR) on chemical composition, fermentation and sensory characteristics. Whole-plant corn (WPC) was ensiled alone, as a control, or in combination with other available local feeds. Ensiled feedstuffs were manually mixed and packed into mini-silos. Thereafter, they were stored and allowed to ferment for 75 days. Mould growth was not observed. Color was scored as good for both silage treatments, whereas odor was scored as moderate for TMR silage and good for WPC silage. The pattern and rate of decrease of pH during the storage was not different between silage treatments. However, mean pH values were different (P < 0.01; 3.81 vs. 4.38) between WPC-and TMRsilages, respectively. Relative to WPC silage, the concentration of dry matter (DM) (36.58 vs. 64.25 %; P = 0.001), crude protein (9.89 vs. 18.15 %; P = 0.005) and metabolizable energy (P = 0.03; 2.51 vs. 2.80 Mcal/kg DM) was higher for TMR silage, as expected. Furthermore, the neutral detergent fibre content decreased along the storage but at a different rate (P = 0.04) for each silage...

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Influence of corn silage supplementation before alfalfa grazing on ruminal environment in relation to the occurrence of frothy bloat in cattle

Cited by 12 publications

References 38 publications

The Role of Proanthocyanidins Complex in Structure and Nutrition Interaction in Alfalfa Forage

The Role of Proanthocyanidins Complex in Structure and Nutrition Interaction in Alfalfa Forage

Productive response to two concentrate allocation strategies in dairy cows grazing with restricted pasture allowance

Effect of ensiling a total mixed ration on feed quality for cattle in smallholder dairy farms

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