Are Insects a Feasible Option or Just a Hyped Promise in Ruminant Nutrition? A Systematic Review of What Has Been Done and What Lies Ahead. [PDF]
Insects are emerging as sustainable alternatives for ruminants. This systematic review evaluates in vitro and in vivo evidence on insect‐based feeds in ruminant nutrition, discussing their outcomes and elucidating underlying mechanisms. Despite promising effects on rumen fermentation, growth, and product quality, inconsistencies related to insect ...
Ghavipanje N +6 more
europepmc +2 more sources
Changes in Ruminal Fermentation and Growth Performance in Calves After Increasing Ruminal Undegradable Protein at Two Different Time Points Pre-Weaning [PDF]
The cost-effective rearing of heifers depends on the provision of adequate nutrients at an appropriate age to meet nutrient requirements for growth and production. The objective of the present study was to investigate how the time of switching to a rumen-
Hamidreza Mirzaei-Alamouti +4 more
doaj +2 more sources
Effects of dietary rumen undegradable protein:rumen degradable protein ratio on nitrogen metabolism in Hanwoo steers [PDF]
Objective We investigated the effects of dietary rumen undegradable protein (RUP): rumen degradable protein (RDP) ratio on growth performance, nitrogen (N) metabolism, and rumen and blood parameters in Hanwoo (Korean cattle) steers.
Sang Yeob Kim +11 more
doaj +2 more sources
Effects of high-protein concentrates with different rumen undegradable-to-degradable protein ratios on performance and carcass traits in 26-month-slaughtered Hanwoo steers [PDF]
Objective This study investigated the effects of high-protein concentrates with two different rumen undegradable protein (RUP)-to-degradable protein ratios on the performance and carcass characteristics of Hanwoo steers reared for 26 months.
Woo Hyeong Hong +9 more
doaj +2 more sources
Effect of supplemental rumen undegradable protein and glucogenic precursors on digestibility and energy metabolism in sheep. [PDF]
King TM +5 more
europepmc +4 more sources
Predicting ruminally undegraded and microbial protein flows from the rumen
The objectives of the present work were (1) to identify the cause of the linear bias in predictions of rumen-undegradable protein (RUP) content of feeds, and devise methods to remove the bias from prediction equations, and (2) to further explore the impact of rumen-degradable protein (RDP) on microbial N (MiN) outflow from the rumen.
M D, Hanigan +4 more
openaire +2 more sources
Soybean meal from damaged grains replacing standard soybean meal in diets of feedlot lambs
Two studies were carried out to evaluate the effects of levels of soybean meal produced from damaged soybean grains replacing normal soybean meal on in vitro and in situ digestibility of ruminant diets as well as on intake, digestibility, and animal ...
Laura Barbosa de Carvalho +7 more
doaj +1 more source
Effect of extrusion on the rumen undegradable protein fraction of lupins
Lupins are highly degradable in the rumen, and do not provide enough bypass protein for high-producing ruminant animals. The effects of extrusion on dry matter (DM) and crude protein (CP) rumen degradability of Lupinus albus and Lupinus angustifolius were determined in situ.
Brand, T.S., Jordaan, L.
openaire +3 more sources
The amino acid composition of rumen-undegradable protein: A comparison between forages [PDF]
The objective of this study was to improve knowledge regarding the amino acid profile of the insoluble portion of ingested forage escaping rumen degradation. Six forage categories were analyzed. Categories varied in botanical composition and each contained 2 samples.
B, Edmunds +5 more
openaire +2 more sources
Manipulation of Soluble and Rumen-Undegradable Protein in Diets Fed to Postpubertal Dairy Heifers [PDF]
Eight postpubertal Holstein heifers (455 +/- 4.0), fit with rumen cannulas, were used in 2 experiments to investigate the effects of altering dietary protein type on nutrient digestibility, rumen fermentation, and nitrogen utilization. Heifers were fed diets containing low or high levels of soluble (SP) and low or high levels of rumen-undegradable ...
G I, Zanton, M T, Gabler, A J, Heinrichs
openaire +2 more sources

