Collection and Summarization of Feed Composition Data. I. The National Research Council Feed Nomenclature System

Harris, Lawrence A.; Crampton, E. W.; Knight, A D; Denney, Alice

doi:10.2527/jas1968.2761743x

Cited by 3 publications

(4 citation statements)

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“…Generally, it is assumed that a feed above 200 g/kg DM crude protein and less than 180 g/kg DM crude fibre (Harris et al 1968, 1980) could be considered a protein supplement. The low protein value for muiumba may come as a surprise since it is a legume tree and thus a higher protein value was expected.…”

Section: Discussionmentioning

confidence: 99%

“…The chemical composition of muiumba seeds showed that this feedstuff could only supply moderate concentrations of protein making unviable its utilization as a protein supplement. Generally, it is assumed that a feed above 200 g/kg DM crude protein and less than 180 g/kg DM crude fibre (Harris et al 1968 , 1980 ) could be considered a protein supplement. The low protein value for muiumba may come as a surprise since it is a legume tree and thus a higher protein value was expected.…”

Section: Discussionmentioning

confidence: 99%

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Evaluation of the nutritive value of muiumba (Baikiaea plurijuga) seeds: chemical composition, in vitro organic matter digestibility and in vitro gas production

et al. 2014

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One of the main constraints hindering the increase of animal production in semi-arid regions of Africa is the inadequate supply of nutrients during the dry season. Incorporation of alternative feed resources in ruminant diets during this period could be a viable approach to overcome these limitations. The objective of this study was to evaluate the nutritive value of muiumba (Baikiaea plurijuga) tree seeds as an alternative nutrient source for ruminants. Muiumba seeds were compared to other eight feedstuffs including two cereal grains (corn and oat), two wheat by-products (wheat bran and distilled wheat) and four protein meals (coconut meal, sunflower meal, soybean meal and rapeseed meal) as to its chemical composition, in vitro organic matter digestibility (IVOMD) and in vitro gas production. The moderate crude protein concentrations (145 g/kg DM) of muiumba seeds indicate that this feedstuff could not be used as a protein supplement, contrarily to the majority of multipurpose tree seeds. Although the starch content was scarce (15 g/kg DM), the low neutral detergent fibre (235 g/kg DM), low molecular weight sugar (76.1 g/kg DM) and non-starch polysaccharide (510.5 g/kg DM) contents indicate that this feedstuff has potential feeding value. This was confirmed by the IVOMD (0.770) and by the data provided by the in vitro gas production showing that muiumba seeds had high (P < 0.05) maximum gas production and fractional fermentation rates, suggesting that these seeds are characterized by a highly fermentable fraction.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Evaluation of the nutritive value of muiumba (Baikiaea plurijuga) seeds: chemical composition, in vitro organic matter digestibility and in vitro gas production

et al. 2014

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“…The FNH contributes up to 15% of the livestock feed from grazing ( Zhang and Zhang, 2017 ). Feeding amount and function of FNH are similar to fresh grass and additives, respectively ( Harris et al, 1968 ). Multiple secondary metabolites (e.g., phenylethanoid glycoside, volatile components, iridoids, flavonoids, alkaloids, simple secoiridoid glycoside, flavonoids, and iridoid glycosides) in Cistanche deserticola and Gentiana straminea can directly alter enteric microbe involved in livestock digestion and metabolism ( Liu X. et al, 2020 ; Xie et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Dietary supplementation of Allium mongolicum modulates rumen-hindgut microbial community structure in Simmental calves

et al. 2023

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Compared to traditional herbage, functional native herbage is playing more important role in ruminant agriculture through improving digestion, metabolism and health of livestock; however, their effects on rumen microbial communities and hindgut fermentation are still not well understood. The objective of present study was to evaluate the effects of dietary addition of Allium mongolicum on bacterial communities in rumen and feces of claves. Sixteen 7-month-old male calves were randomly divided into four groups (n = 4). All calves were fed a basal ration containing roughage (alfalfa and oats) and mixed concentrate in a ratio of 60:40 on dry matter basis. In each group, the basal ration was supplemented with Allium mongolicum 0 (SL0), 200 (SL200), 400 (SL400), and 800 (SL800) mg/kg BW. The experiment lasted for 58 days. Rumen fluid and feces in rectum were collected, Rumen fluid and hindgut fecal were collected for analyzing bacterial community. In the rumen, Compared with SL0, there was a greater relative abundance of phylum Proteobacteria (p < 0.05) and genera Rikenellaceae_RC9_gut_group (p < 0.01) in SL800 treatment. In hindgut, compared with SL0, supplementation of A. mongolicum (SL200, SL400, or SL800) decreased in the relative abundances of Ruminococcaceae_UCG-014 (p < 0.01), Ruminiclostridium_5 (p < 0.01), Eubacterium_coprostanoligenes_group (p < 0.05), and Alistipes (p < 0.05) in feces; Whereas, the relative abundances of Christensenellaceae_R-7_group (p < 0.05), and Prevotella_1 (p < 0.01) in SL800 were higher in feces, to maintain hindgut stability. This study provided evidence that A. mongolicum affects the gastrointestinal of calves, by influencing microbiota in their rumen and feces.

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“…These equations (Table 2) were tested on other (about 350) Egyptian and foreign feeds (Schneider, 1947;Morrison, 1954) and gave errors within the ranges reported, with the exception of a few feeds which were difficult to classify according to the system suggested in Table 2. It would be of a considerable value in minimizing the differences in the nutritive value of a given feed if the suggested system of nomenclature of Harris et al (1968) were utilized. The specifications of this system of the feed's origin, stage of maturity, part actually eaten, processes applied in preparation, etc., would increase the feed classes, but it •would also increase the homogeneity with these classes.…”

Section: Discussionmentioning

confidence: 99%

The Prediction of the Nutritive Value of Animal Feeds from Chemical Analyses

Naga

El-Shazly

1971

J. Agric. Sci.

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SummaryA protein index for animal feeds is suggested as a basis for the criteria relating nutritive value to chemical composition. The feeds were classified into four main groups: legumes, non-legumes, straws and concentrates. The regression equations for predicting the nutritive value gave a reasonable level of accuracy (0·18–14·74% error). Higher levels of accuracy were attained employing regression equations formulated for more homogenous feed subgroups classified according to their protein and fibre contents. The percentage error resulting from the use of the specific equations was found to range between zero and 9·88.

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Collection and Summarization of Feed Composition Data. I. The National Research Council Feed Nomenclature System

Cited by 3 publications

References 1 publication

Evaluation of the nutritive value of muiumba (Baikiaea plurijuga) seeds: chemical composition, in vitro organic matter digestibility and in vitro gas production

Evaluation of the nutritive value of muiumba (Baikiaea plurijuga) seeds: chemical composition, in vitro organic matter digestibility and in vitro gas production

Dietary supplementation of Allium mongolicum modulates rumen-hindgut microbial community structure in Simmental calves

The Prediction of the Nutritive Value of Animal Feeds from Chemical Analyses

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