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Author: Angela Rene Boyer Publisher: ISBN: Category : Endophytes Languages : en Pages : 150
Book Description
The objectives of the study were to determine if consumption of endophyte-infected (E+) ground fescue seed would affect thermoregulation, dry matter intake (DMI), and serum leptin and prolactin values in female meat goats. During a 4-week study, 18 goats were assigned to treatment groups (n=6): endophyte-free KY-31 (E- ); endophyte-free STF-43 (E43- ); or E+ seed. Goats were fed a ration consisting of a 2:1:1 ratio of alfalfa pellets, sweet feed, and one of three types of ground fescue seed. Orts were collected and weighed daily on a DM basis, while urine, blood and body weight (BW) were collected weekly. Temperature loggers designed for intravaginal insertion collected temperature (T) data throughout the study period. Urine ergot alkaloid levels in E+ does increased after 1 week on treatment (P
Author: Angela Rene Boyer Publisher: ISBN: Category : Endophytes Languages : en Pages : 150
Book Description
The objectives of the study were to determine if consumption of endophyte-infected (E+) ground fescue seed would affect thermoregulation, dry matter intake (DMI), and serum leptin and prolactin values in female meat goats. During a 4-week study, 18 goats were assigned to treatment groups (n=6): endophyte-free KY-31 (E- ); endophyte-free STF-43 (E43- ); or E+ seed. Goats were fed a ration consisting of a 2:1:1 ratio of alfalfa pellets, sweet feed, and one of three types of ground fescue seed. Orts were collected and weighed daily on a DM basis, while urine, blood and body weight (BW) were collected weekly. Temperature loggers designed for intravaginal insertion collected temperature (T) data throughout the study period. Urine ergot alkaloid levels in E+ does increased after 1 week on treatment (P
Author: Laurie Ann Varney Publisher: ISBN: Category : Livestock Languages : en Pages : 108
Book Description
Tall fescue continues to rise in popularity as a forage crop despite it's association with certain animal maladies. Infection by an asymptomatic fungal endophyte has been linked with the reported incidence of these maladies. The purpose of this study was to quantify and qualify the effects that ingestion of endophyte-infected tall fescue has on lactation, growth and sexual development in CD-1 mice.
Author: Brandon Jermaine McClenton Publisher: ISBN: Category : Languages : en Pages : 98
Book Description
The objective of this study was to determine the effects of feeding endophyte-infected tall fescue seed to Angus steers on average daily gain, carcass characteristics, ergovaline concentration, lipid oxidation, hepatic enzyme activity, metmyoglobin reductase activity, and mitochondrial lipid composition. Animals were blocked into light, medium, and heavy body weight groups and were randomly assigned to either a KY31 seed treatment (6796 ppb ergovaline; 20 μg/kg BW; E+; n = 6) or a KY32 control ( 100 ppb; E-; n = 6). There was a 2- way treatment × time interaction effect on ADG (P
Author: Alexander John Holtcamp Publisher: ISBN: Category : Languages : en Pages : 83
Book Description
The objective of this study was to determine the effects of feeding endophyteinfected tall fescue seed to Angus steers during the stocker phase on beef shelf life. Endophyte-infected tall fescue seed had no effect on pH, TBARS, activity of superoxide dismutase and metmyoglobin reductases, and sensory attributes of strip loin steaks or patties (P ≥ 0.082). However, E+ patties had 0.5% more DMb (P = 0.017) and 27% greater redness (a*) on d 5 of display (P
Author: Publisher: ISBN: Category : Languages : en Pages :
Book Description
The objective of this study was to determine the effects of feeding endophyte-infected tall fescue seed to Angus steers during the stocker phase on beef shelf life. Endophyte-infected tall fescue seed had no effect on pH, TBARS, activity of superoxide dismutase and metmyoglobin reductases, and sensory attributes of strip loin steaks or patties ( P >= 0.082). However, E+ patties had 0.5% more DMb ( P = 0.017) and 27% greater redness (a*) on d 5 of display ( P
Author: Saleh Abdullah Alrashedi Publisher: ISBN: Category : Sheep Languages : en Pages : 314
Book Description
Fifty pregnant Katahdin ewes grazed pastures with high (HE) and moderate (MI) levels of Neotyphodium coenophialum-infected tall fescue between February 1 and May 24 to determine the impacts of tall fescue toxins on body weight (BW), body condition scores, FAMACHA scores, fecal egg counts (FEC), and serum Cu, Zn, prolactin, and non-esterified fatty acids (NEFA). Within those 50 ewes, 15 were selected randomly for fecal and rumen sampling to assess the impacts of HE and MI on the microbiome community. Total bacterial DNA was extracted from rumen and fecal samples, and alpha and beta diversities were used to relate microbiome data diversity with forage treatments and physical and physiological measurements. Most of the ewe physical and physiological measurements were not affected by endophyte levels. However, body weight changes (d 51 to d 115) and NEFA changes (d 51 to d 115) were greater in MI than HE. The HE group had greater observed ruminal OTUs, Shannon, Chao, and beta diversities at d 115 than MI. Members of Bacteroidetes_Prevotella ruminal bacteria OTUs were correlated with BW changes, prolactin concentrations, NEFA changes, and FEC. Also on d 115, there was an increased abundance from Firmicutes in HE vs. MI (60% vs. 53 %, respectively). The HE group had greater observed fecal OTUs, Shannon, and Chao, on d 51 than MI, but beta diversities did not differ between HE and MI during the study. Members of Actinobacteria_Coriobacteriaceae_unclassified fecal OTUs were correlated with BW changes, prolactin concentrations, NEFA changes, and FEC. At the end of the study, there was decreased abundance from Bacteroidetes in MI and HE (52.9 % and 49.3 %, respectively). Shifting of rumen or fecal bacteria populations that occurred could be a direct effect of the ergot alkaloids or indirect effects of toxins on intake or digestibility that subsequently impacted the bacterial populations. It is also possible that the bacteria that detoxify ergot alkaloids are minor species that have yet to be classified. Further research in the rumen or fecal microbial and their changes in responses to grazing endophyte-infected fescue needs to be considered to identify bacteria responsible for the detoxification.
Author: Eric Lichtfouse Publisher: Springer ISBN: 3319267779 Category : Technology & Engineering Languages : en Pages : 401
Book Description
This book features articles that analyze current agricultural issues and knowledge. It also proposes novel, environmentally friendly solutions that are based on integrated information from such fields as agronomy, soil science, molecular biology, chemistry, toxicology, ecology, economics and the social sciences.Coverage examines ways to produce food and energy in a sustainable way for humans and their children. Inside, readers will find articles that explore climate change, increasing food and fuel prices, poor-nation starvation, rich-nation obesity, water pollution, soil erosion, fertility loss, pest control and biodiversity depletion. Instead of solving problems using the classical painkiller approach, which seeks to limit negative impacts, sustainable agriculture treats challenges at their source. Because most societal issues are in fact intertwined, global, and fast-developing, sustainable agriculture will bring solutions that have the potential to build a more peaceful world. This book will help scientists, decision-makers, professors, farmers and politicians build safer agriculture, energy and food systems for future generations.
Author: Angela Rene Boyer
Author: Angela Rene Boyer
Author: Mindy Elizabeth King
Author: Laurie Ann Varney
Author: William F. Durham
Author: Brandon Jermaine McClenton
Author: Alexander John Holtcamp
Author: 
Author: Saleh Abdullah Alrashedi
Author: 
Author: Eric Lichtfouse