Author: Juan F. VillalbaPublisher:
ISBN:
Category : Swine
Languages : en
Pages : 152
Book Description
The Effect of Methionine Hydroxy Analog (MHA) on the Performance, Digestibility of Nutrients and Nitrogen Retention of Young and Growing Pigs Fed Different Levels of Sugar (sucrose) in the Diet
Author: Juan F. VillalbaPublisher:
ISBN:
Category : Swine
Languages : en
Pages : 152
Book Description
Effect of Methionine Supplementation on the Performance, Nutrient Digestibility and Nitrogen Retention of Growing Pigs Fed Bird Resistant Sorghum Grain Diets
Author: Carlos Miguel CampabadalPublisher:
ISBN:
Category : Methionine
Languages : en
Pages : 4
Book Description
Some Effects of Level of Dietary Protein on Lysine Metabolism of Growing Pigs
Author: Robert Frank KlayNutritional and Endocrine Effects on the Efficiency of Lysine and Protein Use in Growing Pigs
Author: Key Ung LeeEffects of Dietary Supplementation of L-methionine Vs DL-methionine on Performance, Plasma Concentrations of Free Amino Acids and Other Metabolites, and Myogenesis Gene Expression in Young Growing Pigs
Author: Zhongyue YangPublisher:
ISBN:
Category :
Languages : en
Pages : 70
Book Description
This research was conducted to study the effects of supplemental L-Methionine (L-Met) and DL-Methionine (DL-Met) on nutrient metabolism, muscle gene expression, and growth performance of pigs. Twenty crossbred young barrows (initial Body Weight (BW) 21.2 ± 2.7 kg) were randomly assigned to 2 treatments. Crystalline L-Met and DLMet were supplemented to the diets in Treatment 1 and 2 (both at 0.13%, as-fed basis), respectively. After 4 weeks of an ad libitum feeding trial, BW and feed intake were measured to calculate Average Daily Gain, Average Daily Feed Intake, and Gain: Feed. The blood samples were collected from the jugular vein for analyses of plasma AA and metabolite concentrations. The longissimus dorsi muscle samples were collected for analysis of myogenesis gene expression. The findings from this study (from gene expression to animal growth performance) suggest that the bioefficacy of L-Met is the same as for DL-Met, indicating the highly efficient conversion of D-Met to L-Met in young growing barrows.
Effects of Dietary Supplementation of L-methionine Vs DL-methionine on Performance, Plasma Concentrations of Free Amino Acids and Other Metabolites, and Myogenesis Gene Expression in Young Growing Pigs
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
This research was conducted to study the effects of supplemental L-Methionine (L-Met) and DL-Methionine (DL-Met) on nutrient metabolism, muscle gene expression, and growth performance of pigs. Twenty crossbred young barrows (initial Body Weight (BW) 21.2 ± 2.7 kg) were randomly assigned to 2 treatments. Crystalline L-Met and DL- Met were supplemented to the diets in Treatment 1 and 2 (both at 0.13%, as-fed basis), respectively. After 4 weeks of an ad libitum feeding trial, BW and feed intake were measured to calculate Average Daily Gain, Average Daily Feed Intake, and Gain: Feed. The blood samples were collected from the jugular vein for analyses of plasma AA and metabolite concentrations. The longissimus dorsi muscle samples were collected for analysis of myogenesis gene expression. The findings from this study (from gene expression to animal growth performance) suggest that the bioefficacy of L-Met is the same as for DL-Met, indicating the highly efficient conversion of D-Met to L-Met in young growing barrows.
Commercial Poultry Nutrition
Author: S. LeesonPublisher: Nottingham University Press
ISBN: 190476178X
Category : Science
Languages : en
Pages : 413
Book Description
Covering a variety of essential topics relating to commercial poultry nutrition and production—including feeding systems and poultry diets—this complete reference is ideal for professionals in the poultry-feed industries, veterinarians, nutritionists, and farm managers. Detailed and accessible, the guide analyzes commercial poultry production at a worldwide level and outlines the importance it holds for maintaining essential food supplies. With ingredient evaluations and diet formulations, the study's compressive models for feeding programs target a wide range of commercially prominent poultry, including laying hens, broiler chickens, turkeys, ducks, geese, and game birds, among others.
A Comparison of the Biological Utilization of the Hydroxy Analogue of Methionine to L-methionine in the Chick
Author: James Milton SarokaPublisher:
ISBN:
Category : Chickens
Languages : en
Pages : 404
Book Description
The Sulfur Amino Acid Requirement of the Baby Pig as Affected by Protein, Choline, and Threonine Levels
Author: Gilbert Herman KroeningPublisher:
ISBN:
Category : Choline
Languages : en
Pages : 230
Book Description
Effects of Methionine Supplement Sources and Crude Protein on Ross 708 By-product Male Performance and Carcass Yield
Author: Darby BoontaruePublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Precise feed formulation is crucial for efficient poultry production. Amino acids (AA) play an integral role as constituents of digestible proteins, predominantly sourced from soybean meal in broiler diets. However, synthetic AAs offer alternatives and formulations closer to bird requirements. Excessive AAs may result in poor litter quality and footpad dermatitis, while excess nitrogen (N) excretion may raise environmental concerns. The growing availability of synthetic AAs and the adoption of the ideal protein concept enable the formulation of diets with lower crude protein (CP) content without compromising performance. Namely, methionine (Met) supplementation is of high priority due to it being the first limiting AA in a corn-soybean meal diet. Nutritionists have access to various ingredients that fulfill the Met requirements of broilers. Amino acids, such as DL-Methionine, are nearly 100% bioavailable while methionine hydroxy analogs are shown to be relatively less bioavailable. Thus, a 42d experiment compared the efficacy of a 65% DL-Methionine and 35% limestone dilution product (65DLM) to a methionine hydroxy analog (MHA) product in a sulfur AA-deficient diet. The impact of CP level, Met supplement sources, and their interaction was assessed on growth performance, carcass traits, footpad lesion scores (FLS), and litter moisture. A total of 3,072 Ross 708 by-product males received diets varying in Met source (none, MHA, or 65DLM) and CP (Standard (SCP) or Reduced 2% (RCP)). Treatments were arranged in a 2 x 3 factorial in a randomized complete block design. Each treatment was fed to 16 replicate floor pens with 32 birds/pen across a 3-phase feeding program. Performance was measured during the starter (d1-10), grower (d11-24), finisher (d25-42), and overall (d1-42) periods. On d24 and 42, litter was collected to determine litter moisture, and three birds/pen were selected for FLS. On d42, three birds/pen were selected for processing yield. Overall, regardless of Met source, RCP-fed birds showed reduced performance compared to their counterpart SCP treatments. Birds fed SCP diets increased litter moisture when compared to birds fed RCP diets. Likewise, birds fed either MHA or 65DLM had higher litter moisture content than birds provided a diet with no Met supplementation. On d42, majority of FLS across all treatments were a score of "0". Breast weight was highest when 65DLM was included in SCP diets and reduced when MHA was provided in either RCP or SCP diets. Overall, this experiment indicated that 65DLM can replace MHA in a diet marginally deficient in total sulfur AAs to achieve similar performance and improve breast weight.