Results 41 to 50 of about 930 (170)

Effects of Parity and Supply of Rumen-Degraded and Undegraded Protein on Production and Nitrogen Balance in Holsteins [PDF]

Journal of Dairy Science, 2005
Eight Holstein cows (4 primiparous and 4 multiparous) were used in a replicated 4 x 4 Latin square design to determine milk production response and N balance when diets had no NRC-predicted excess of rumen-undegradable protein (RUP) or rumen-degradable protein (RDP), 10% RUP excess, 10% RDP excess, or 10% excess of both RUP and RDP. Diets were fed as a
S A, Flis, M A, Wattiaux
openaire   +2 more sources

Effects of rumen-protected methionine supplementation on dairy cows during early postpartum

Journal of Applied Animal Research, 2021
The objective of this study was to investigate the effects of rumen-protected methionine (RPM) supplementation during early lactation on performance and metabolic parameters of dairy cows.
Tainara Cristina de Abreu Michelotti, Hendyel Aparecida Pacheco, Guilherme Fernando Mattos Leão, Fernanda Lopes, Johan Samir Osorio, Rodrigo de Almeida   +5 more
doaj   +1 more source

Separation of trichothecene mycotoxins in a matrix of hemp (Cannabis sativa L.) seed, and quantification of deoxynivalenol in hemp grain infected with Fusarium graminearum

JSFA reports, EarlyView.
Abstract Background Fusarium graminearum, one of the causal agents of ear rot in maize and head blight of cereal grains, also infects hemp (Cannabis sativa L. containing a maximum of 0.3% tetrahydrocannabinol or THC). This fungal pathogen produces trichothecene mycotoxins when it infects maize and cereal grains, but little is known about its production
Isabelle A. Kagan, Magdalena Ricciardi, Henry S. Smith, Rachel R. Schendel, Robert Pearce, Nicole Gauthier   +5 more
wiley   +1 more source

Effect of supplementation with protein differ for rumen degradability on milk production and nutrients utilization in early lactating Sahiwal cows

Italian Journal of Animal Science, 2012
Early lactating Sahiwal cows (n=24) of approximately similar yield and lactation were selected and randomly divided into four groups of six cows in each.
Talat N. Pasha, Makhdoom A. Jabbar, Illahi B. Marghazani, Muhammad Abdullah   +3 more
doaj   +1 more source

Ruminal degradability of bypass fat and protein of certain commonly used feedstuffs in dairy rations

Indian Journal of Animal Sciences, 2022
Studies were conducted to determine the rumen degradability of protein of certain commonly used feed ingredients and degradability of bypass fat used in dairy rations.
M CHANDRASEKHARAIAH, N M SOREN, S B N RAO   +2 more
doaj   +1 more source

Rumen Undegradable Protein, Rumen-Protected Choline and mRNA Expression for Enzymes in Gluconeogenesis and Ureagenesis in Periparturient Dairy Cows

Journal of Dairy Science, 2001
The objective of this study was to profile mRNA expression of argininosuccinate synthetase (AS) and ornithine transcarbamylase (OTC), two enzymes that participate in the formation of urea in liver and compare these with changes in mRNA for pyruvate carboxylase (PC) and phosphoenolpyruvate carboxykinase (PEPCK) during the periparturient period in dairy ...
J R, Hartwell, M J, Cecava, S S, Donkin
openaire   +2 more sources

The Efficacy of Food‐Grade Substances to Protect Dietary Glutamine From Ruminal Degradation

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT This study was conducted to investigate the use of four, low cost, food‐grade substances to protect glutamine from microbial degradation in vitro, and subsequently validate their efficacy in vivo. Two in vitro trials were conducted using 250 mL bottles replicated in triplicate to test beeswax‐, paraffin wax‐, zein‐, and rice bran wax ...
Lillian P. Carlyon, Tianna R. Boyce, Leesa‐Joy Dunstan, Bruno R. C. Alves, Kiro Petrovski, Mariana Caetano   +5 more
wiley   +1 more source

Estimação da digestibilidade intestinal da proteína de alimentos por intermédio da técnica de três estádios Estimation of protein intestinal digestibility of feeds by means of three-steps technique

Revista Brasileira de Zootecnia, 2001
O objetivo do presente trabalho foi estimar a digestibilidade intestinal da proteína não-degradada no rúmen de alimentos por intermédio da técnica de três estádios. Os alimentos avaliados foram os farelos de soja, algodão e trigo; fubá e glúten de milho;
Luciano da Silva Cabral, Sebastião de Campos Valadares Filho, Pedro Antônio Muniz Malafaia, Rogério de Paula Lana, José Fernando Coelho da Silva, Ricardo Augusto Mendonça Vieira, Elzânia Sales Pereira   +6 more
doaj   +1 more source

Effects of Cottonseed Cake and Weissella cibaria on Fractionation of Carbohydrates and Proteins and In Situ Degradability in Sorghum Silages

New Zealand Journal of Agricultural Research, Volume 69, Issue 3, June 2026.
This study aimed to estimate the fractionation of carbohydrates and crude protein (CP), and the ruminal degradation rates of dry matter (DM), CP, and neutral detergent fiber (NDF) in sorghum silages. Silages were prepared with or without the addition of 10% cottonseed cake (CSC, natural matter basis) and Weissella cibaria (W. cibaria).
Raiane B. Mendes, Edson M. Santos, Gabriel R. S. Oliveira, Antônio C. Macêdo Neto, Thais N. D. Souza, Douglas D. S. Pina, Stefanie A. Santos, Maria L. G. M. L. D. Araújo, Henry D. R. Alba, Rodrigo B. Saldanha, Gleidson G. P. D. Carvalho   +10 more
wiley   +1 more source

Interactions between rumen degradable protein and delivery method drive changes in the rumen microbiome of beef cattle on low-quality forage diets

Frontiers in Animal Science
IntroductionLimited rainfall in semi-arid regions can lead to forage deficiencies necessitating protein supplementation for beef cattle diets. The objective of this study was to investigate the effects of protein supplement type and delivery method on ...
Jed O. Eberly, Samuel A. Wyffels, Marley Manoukian Voll, Megan van Emon, Timothy DelCurto   +4 more
doaj   +1 more source