Evaluation of the air-dry mass of vetch-cereal grass mixtures according to their optimality in the ratio of neutral-detergent (NDF) and acid-detergent fiber (ADF)

Abstract

On the experimental field an experiment was laid to study the productivity of two types of winter vetch: Hungarian vetch (Vicia pannonica Granz) varieties Orlan and Chernomorskaya and downy vetch (Vicia villosa op Roth) varieties Lugovskaya 2 and Glinkovskaya. The vetch was sown in a mixture with winter wheat (Triticum aestivum L.) variety Tanya. Various doses of mineral fertilizers. Phosphorus (superphosphate) and potassium (potassium chloride) were introduced during sowing, nitrogen (calcium nitrate) – as early spring feeding. As a control, we studied the variety of furry vetch Lugovskaya 2, since this is the most popular variety of winter vetch in the Krasnodar Territory. The soils of the experimental plots are represented by leached, low-humus heavy loamy powerful chernozem. Due to the limited feed intake, the diets of high-yielding cows are rich in highly digestible non-structural carbohydrates (ADF), which fermentation leads to the formation of a large amount of propionic acid in the rumen with a strong acidic effect and, conversely, NDF fermentation is slower and on a smaller scale. The variant winter wheat Tanya + winter vetch Lugovskaya 2 - is closer to the optimum in the second cut. The rest of the experimental options of vetchwheat and vetch-triticale grass mixtures also have a negative fiber balance, which is not acceptable for feeding high-producing dairy cattle.

Metabolomics approach reveals high energy diet improves the quality and enhances the flavor of black Tibetan sheep meat by altering the composition of rumen microbiota

“…Unexpectedly the higher fat deposition in HS, lower in MS, and medium in LS was detected in our findings. The discrepancy between our findings and previous studies may be caused by the different NDF and ADF ratios in the diets ( 36 ). Notably, an increase in fat deposition in muscles might be associated with increased metabolism in these tissues ( 37 ).…”

Dynamic changes occur in the cell wall composition and related enzyme activities during flower development in Rosa damascena

“…In the study, the ash content of developing flowers decreased, and the contents of six cell wall components found in petals differed depending on the flower development stages. NDF is widely used in fiber characterization, as it contains important components of plant cell walls (cellulose, hemicellulose and lignin) and ADF contains cellulose and lignin ( Ankom, 2017 ), thus it is possible to distinguish carbohydrates structurally and non-structurally ( Skamarokhova et al., 2020 ). Hemicelluloses take part in the cross-linking of cellulose in cell walls and contribute to changes in primary cell wall structure ( Brummell, 2006 ).…”

İkinci ürün olarak yetiştirilen bazı tatlı sorgum [Sorghum bicolor var. saccharatum (L.) Mohlenbr.] genotiplerinin verim ve verim ögelerinin belirlenmesi

“…Mevcut çalışma ile önceki çalışmalar arasındaki bu farklılıklar üzerinde; çevresel faktörler, biçim zamanı, bitki çeşidi, analiz yöntemi gibi faktörlerin etkili olduğu düşünülmektedir. Bitki hücre duvarının en önemli yapısal bileşeni olan ve selüloz, hemiselüloz ve ligninden oluşan NDF (Lee et al, 2017;Skamarokhova et al, 2020), geviş getiren hayvanların yemi tüketimi ile ilişkili olup (Budak & Budak, 2014;Lemaire & Belanger, 2019), NDF oranının da kaba yemlerde düşük olması istenir. Yem kalite standardı dikkate alındığında, NDF içeriği yönünden tatlı sorgum genotiplerinin "iyi", "orta" ve "kötü" kalite standartlarında değişen yem ürettiği belirlenmiştir.…”