Botanical traits, protein and carbohydrate fractions, ruminal degradability and energy contents of alfalfa hay harvested at three stages of maturity and in the afternoon and morning

Yari, Mojtaba; Valizadeh, Reza; Naserian, Abbas Ali; Ghorbani, G.R.; Moghaddam, Parviz Rezvani; Jonker, Arjan; Yu, Peiqiang

doi:10.1016/j.anifeedsci.2012.01.004

Cited by 40 publications

(57 citation statements)

References 28 publications

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“…As plant matures, it was reported a decrease, similar to the literature [20][21][22][23][24][25] , especially in CP, ash and EE volumes. While it was reported that cell wall elements (ADF and NDF) increased with maturation [20,21,26,27] , in this study it increased during transition from vegetative period to budding [28] , fiber content was affected very little after transition to flowering stage and no statistically significant difference was observed [25] (Table 1).…”

Section: Discussionsupporting

confidence: 71%

Yoncanın (Medicago sativa) NRC-2001, Hohenheim ve UC Davis Eşitlikleri Kullanılarak Tahmin Edilen Enerji Değerlerinin Karşılaştırılması

Alataş¹,

Kara²,

İnal³

et al. 2016

Kafkas Univ Vet Fak Derg

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In this study, our aim was to compare estimated metabolizable energy (ME) and net energy lactation (NEL) contents in dried alfalfa samples in their different growth stages, using models such as NRC-2001, HohenheimMenke and University of California at Davis (UC Davis). A total of 73 alfalfa hay samples obtained during three different growth stages (Vegetative, Bud and Bloom) were used. Chemical analyses were performed for each sample. Energy values of the alfalfa hay samples were calculated with NRC-2001 equations from chemical analysis results, and with HohenheimMenke and UC Davis equations from in vitro gas production volumes. Gas production in alfalfa samples in vegetative period (S1) was higher than other periods (P<0.001). Again, ME values calculated with all three methods in the alfalfa hay samples of this period were significantly higher than the samples in bud and bloom periods (P<0.001).

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Section: Discussionsupporting

confidence: 71%

Yoncanın (Medicago sativa) NRC-2001, Hohenheim ve UC Davis Eşitlikleri Kullanılarak Tahmin Edilen Enerji Değerlerinin Karşılaştırılması

Alataş¹,

Kara²,

İnal³

et al. 2016

Kafkas Univ Vet Fak Derg

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“…Forage quality (as expressed by higher values of digestibility and protein content, and lower values of neutral-[NDF] and acid-detergent fibre [ADF] and aciddetergent lignin [ADL]) is strictly associated positively with leaf/stem ratio and negatively with the degree of stem lignification, both becoming less favorable with increased plant maturity and progression of the reproductive stage. Thus, maturity stage and mowing time have a significant effect on the main forage quality parameters (Yari et al, 2012). Non-structural carbohydrate content is low but increases throughout the day, so a harvest at the end of the day has a high energy content and a slight decline in protein content (Morin et al, 2011).…”

Section: Alfalfamentioning

confidence: 99%

“…Alfalfa is considered one of the best forage crops for feeding ruminant animals because of its high nutritional value Yari et al, 2012). Its leaves are protein-and vitaminrich and low in cell wall concentration and therefore highly digestible.…”

Section: Alfalfamentioning

confidence: 99%

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

Annicchiarico¹,

Barrett²,

Brummer³

et al. 2014

Critical Reviews in Plant Sciences

241

233

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“…Por su parte, la alfalfa (Medicago sativa L.) es uno de los principales forrajes cultivados mundialmente (Yari et al, 2012a), porque tiene un mayor valor nutricional y alta degradabilidad cuando se compara con gramíneas o leguminosas tropicales de la misma edad (Jung y Engels, 2001). Por lo tanto, si la alfalfa es cosechada en condiciones adecuadas, presenta el potencial de reducir la necesidad de utilizar alimentos balanceados en las fincas ganaderas (Foster et al, 2007;Yari et al, 2012b).…”

Section: Introductionunclassified

“…En el caso de la alfalfa, las características botánicas y su valor nutritivo se encuentran determinados por factores como el cultivar, la etapa de madurez y las condiciones climáticas de la zona donde se cultiva (Yari et al, 2012a).…”

Section: Introductionunclassified

Degradabilidad ruminal de la alfalfa en la zona oriental del Valle Central de Costa Rica

Figueroa

Chacón-Hernández

2017

Mesoam. Agron.

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The objective of this work was to evaluate in dairy cows, the potential of ruminal degradability of four alfalfa (Medicago sativa) varieties developed in Argentina. The research was carried out in the Alfredo Volio Mata Experimental Station, located in the province of Cartago, Costa Rica; the area has a mean temperature of 17.9°C; a height of 1542 masl, and 1465.9 mm of rain evenly distributed between the months of May and November. Sampling was performed during 2014’s rainy season with ground level harvest of alfalfa, with samples of the varieties of Mora, Patricia, Victoria and Super Monarca, with harvest age of 28, 35, 42, 49, 56 and 63 days; all samples were dried, minced and incubated by duplicate on two Jersey-Reyna ruminally fistulated cows, for 0, 3, 6, 12, 24 and 48 hours. The results were analyzed through the Marquardt algorithm with the SAS software. Statical differences were only found between soluble fraction and degradation rate (p<0.05) according to harvest ages, with values of soluble, potentially degradable and degradation rate of 35.34%-44.65%, 36.46%-39.96% and 0.0734/h-0.1176/h, respectively. Likewise, effective degradability percentages of 59.06%-67.09%, with passage rates of 6%/h, according to harvest ages were obtained. Given the obtained results, the analyzed varieties of M. sativa showed a digestible forage, which could be used for the feeding of highly production animals.

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Botanical traits, protein and carbohydrate fractions, ruminal degradability and energy contents of alfalfa hay harvested at three stages of maturity and in the afternoon and morning

Cited by 40 publications

References 28 publications

Yoncanın (Medicago sativa) NRC-2001, Hohenheim ve UC Davis Eşitlikleri Kullanılarak Tahmin Edilen Enerji Değerlerinin Karşılaştırılması

Yoncanın (Medicago sativa) NRC-2001, Hohenheim ve UC Davis Eşitlikleri Kullanılarak Tahmin Edilen Enerji Değerlerinin Karşılaştırılması

Achievements and Challenges in Improving Temperate Perennial Forage Legumes

Degradabilidad ruminal de la alfalfa en la zona oriental del Valle Central de Costa Rica

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