Effect of Bacterial Inoculant on Alfalfa Haylage: Ensiling Characteristics and Milk Production Response When Fed to Dairy Cows in Early Lactation

Kent, B.A.; Arambel, M.J.; Walters, J.L.

doi:10.3168/jds.s0022-0302(88)79831-8

Cited by 10 publications

(10 citation statements)

References 8 publications

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“…This search was complemented by using the citations in scientifi c papers for a more comprehensive database. A total of 59 papers were found, but only 10 ( Kung et al, 1987;Kent et al, 1988;Kung et al, 1989;Fredeen et al, 1991;Nagel and Broderick, 1992;Colombari et al, 2001;Kung et al, 2003;Broderick et al, 2007;Krizsan et al, 2007;Broderick and Muck, 2009) met the following criteria: 1) diets including alfalfa silage were statistically compared; 2) ammonia-N concentration in alfalfa silage was clearly reported; 3) similar percentage of alfalfa silage was maintained across diets; 4) alfalfa silage was not mixed with other forage sources; 5) alfalfa silage was harvested at the same stage of maturity; 6) physical form of alfalfa silage was not altered in the diets; and 7) individual lactating dairy cows were used as experimental units to evaluate the eff ects of alfalfa silage.…”

Section: Methodsmentioning

confidence: 99%

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Ammonia-N concentration in alfalfa silage and its effects on dairy cow performance: a meta-analysis

Duarte

Garcia

2017

Rev Colomb Cienc Pecu

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Concentración del nitrógeno amoniacal en el ensilaje de alfalfa y sus efectos sobre el desempeño de vacas lecheras: Meta-análisis Abstract Background: Ammonia nitrogen (N) in alfalfa silage is used to evaluate silage quality, but its eff ect on dairy cows production is unknown. Objective: A meta-analysis was conducted to assess the eff ects of ammonia-N concentration in alfalfa silage on dairy cow performance. Methods: Thirty-four comparisons from 10 studies were analyzed with linear and quadratic models by the mixed-eff ect models of the R program using study as a random eff ect. The variance explained by the models was evaluated calculating marginal R 2 (m) and conditional R 2 (c) . Results: Dry matter intake declined (DMI; p = 0.007), and milk production and milk fat yield tended to decrease linearly in response to increasing ammonia-N concentration (p = 0.08). Milk fat and milk protein percentages were unaff ected. Milk protein yield, however, showed a positive linear trend eff ect (p = 0.07) along with a signifi cant quadratic eff ect (p = 0.01) in response to increasing ammonia-N concentration. Values of R 2 (m) and R 2 (c) indicated less variation for signifi cant models. Conclusion: Increased ammonia-N in alfalfa silage reduced DMI, negatively impacting milk production and milk fat yield. The quadratic response in milk protein yield might be explained by the initial reduction in milk production, and the subsequent utilization of ammonia-N to produce more rumen microbial protein, which results in more milk protein.

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Section: Methodsmentioning

confidence: 99%

“…One study was not considered in the analysis of milk fat and milk protein percentages due to lack of information (Fredeen et al, 1991). Other studies did not include milk fat and milk protein yields (Kung et al, 1987;Kent et al, 1988;Kung et al, 1989), and were thus calculated from their milk fat and milk protein percentages.…”

Section: Methodsmentioning

confidence: 99%

Ammonia-N concentration in alfalfa silage and its effects on dairy cow performance: a meta-analysis

Duarte

Garcia

2017

Rev Colomb Cienc Pecu

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“…Outros estudos também mostraram que a inoculação não alterou o consumo de MS (Kung et al, 1984;Kent et al, 1988;Stokes, 1992 Mir et al (1995) alertam para possíveis limitações ao fazer recomendações a respeito da eficiência da inoculação, baseando-se em experimentos de curta duração, uma vez que esses pesquisadores observaram aumento do consumo de silagens inoculadas de alfafa por novilhos durante um período do estudo, mas não em outros.…”

Section: Resultsunclassified

“…Nadeau et al (2000) relataram que silagens altamente digestíveis estão associadas com o alto consumo, uma vez que melhora a digestão dos nutrientes, provocada por mudanças na estrutura física e química da fibra, resulta em maior utilização de nutrientes maior taxa de digestão e aumento no consumo (Kung e Muck, 1997).…”

Section: Resultsunclassified

Inoculação microbiana da silagem pré-secada de alfafa sobre a digestibilidade aparente da dieta por vacas leiteiras

Magalhães

Rodrigues²

2003

Acta Sci. Anim. Sci.

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RESUMO.O objetivo do presente estudo foi avaliar os efeitos da inoculação microbiana da silagem pré-secada de alfafa sobre a digestibilidade aparente da dieta em 12 vacas leiteiras, multíparas, distribuídas em delineamento em reversão simples com seqüência balanceada ("cross-over") com dois períodos sucessivos. As dietas experimentais continham 50% de concentrado e 50% de silagem pré-secada de alfafa (50,0% ABSTRACT. Microbial inoculation of alfalfa haylage on dairy cows apparent diet digestibility. The objective of this study was to evaluate the effects of microbially inoculated alfalfa haylage on apparent diet digestibility in twelve dairy cows. A cross-over design with two periods of sampling was used. Diets contained 50% of concentrate and 50% of alfalfa haylage (50.0% DM and 16.5% CP) control or microbially inoculated with Silobac ® product (Lactobacillus plantarum and Pediococcus pentosaceus). Each experimental period extended for twenty-one days and the last five days were used for feces sampling. The inoculation increased the apparent digestibility of DM (inoculated = 81.7 vs. control = 74.2%), CP (83.1 vs. 74

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“…a quicker and deeper acidification and/ or enlarged aerobic stability, in addition to improved animal performance. [42] found a tendency towards higher DM intake (20.4 vs. 18.1 kg/ day) among cows in early lactation fed treated haylage (alfalfa haylage of 45 % DM; P < 0.32). The use of inoculants decreased the pH value from 5.29 vs. 5.11 for the control and the treated haylage groups respectively.…”

Section: Dry Matter (%) Author (Year)mentioning

confidence: 93%

The Use of Probiotic Strains as Silage Inoculants

Aragón¹

2012

Probiotic in Animals

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Effect of Bacterial Inoculant on Alfalfa Haylage: Ensiling Characteristics and Milk Production Response When Fed to Dairy Cows in Early Lactation

Cited by 10 publications

References 8 publications

Ammonia-N concentration in alfalfa silage and its effects on dairy cow performance: a meta-analysis

Ammonia-N concentration in alfalfa silage and its effects on dairy cow performance: a meta-analysis

Inoculação microbiana da silagem pré-secada de alfafa sobre a digestibilidade aparente da dieta por vacas leiteiras

The Use of Probiotic Strains as Silage Inoculants

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