Zootecnia
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Composición de la comunidad, estructura poblacional y condición reproductiva de roedores en una granja avícola de Costa Rica
(2018)Rodents are usually part of livestock production systems. Due to the negative impact they caused it is necessary to implement control programs by determining the species and population status. We studied the rodent ... -
Identification of Pseudococcus viburni and Pseudococcus longispinus (Hemiptera: Pseudococcidae) in Musa sp.
(2018)To establish appropriate taxonomic relationships in studies of mealybugs it is necessary to study the insects by two techniques: morphological and molecular. The aim of this research is to study mealybugs (Hemiptera: ... -
Effects of Toasting Time on Digestive Hydrolysis of Soluble and Insoluble 00‑Rapeseed Meal Proteins
(2017-02-11)Thermal damage to proteins can reduce their nutritional value. The effects of toasting time on the kinet ics of hydrolysis, the resulting molecular weight distribu tion of 00-rapeseed meal (RSM) and the soluble and insolu ... -
Processing temperature and sugar type affect the rate and the extent of proteolysis of a model soy protein isolate system
(2020-11)Processing of ingredients and diets using hydrothermal treatments can lead to negative effects on the nutritional value of proteins, depending on the processing conditions and the matrix of the ingredient or diet. The ... -
Of proteins and processing Mechanisms of protein damage upon rapeseed processing and their effects on nutritional value
(2017-01-31)Amino acids are crucial for livestock animals, primarily obtained from the protein fraction of plant ingredients in their diets. However, the hydrothermal processing of protein-rich co-products from the vegetable oil ... -
Copper sulfate and sodium selenite lipid-microencapsulation modifies ruminal microbial fermentation in a dual-flow continuous-culture system
(2020-08)Undesirable interactions between trace mineral ele ments and ruminal contents may occur during digestion when mineral salts are supplemented. Antimicrobial effects of copper sulfate (CuSO4) may affect ruminal digestibility ... -
Inmunocompetencia y estado nutricional de terneras de lechería alimentadas con calostro retrovirus-positivo: estrategias para mejorar la transferencia pasiva
(2023)Cuarenta terneros (29 hembras y 11 machos) fueron asignados sistemáticamente a uno de dos grupos, como sigue: [1] suministro de 1,8 L de calostro materno o 171 g de IgG (grupo CM o A1, n=20) y [2] suministro de 1,5 L de ... -
Perceptions of Whether Stereotypic Off-the-Track Thoroughbreds are Harder to Rehome Than Nonstereotypic OTTBsdA Pilot Survey Study
(2019)Several studies have indicated higher incidence of stereotypic behaviors (STBs) in Thoroughbreds. The aftercare of Off-the-Track Thoroughbreds (OTTBs) has received increased attention in the last decade; however, research ... -
Physical and chemical changes of rapeseed meal proteins during toasting and their effects on in vitro digestibility
(2016)Background: Toasting during the production of rapeseed meal (RSM) decreases ileal crude protein (CP) and amino acid (AA) digestibility. The mechanisms that determine the decrease in digestibility have not been fully ... -
Apparent ileal digestibility of Maillard reaction products in growing pigs
(2018)The absorption of Maillard reaction products (MRP) from dietary origin has been linked to the occurrence of chronic diseases. The aim of the present study was to determine the effects of toasting time of rapeseed meal ... -
Pelleting and extrusion can ameliorate negative effects of toasting of rapeseed meal on protein digestibility in growing pigs
(2017)Toasting time (TT) of rapeseed meal (RSM), the diet processing (DP) method and the interaction between both on the apparent CP digestion along the gastrointestinal tract and the apparent ileal digestibility (AID) of amino ... -
Evaluation of performance and carcass traits for a five-cohort All Heifer, No Cow beef production system demonstration herd
(2020-10-27)The All Heifer, No Cow (AHNC) beef production system is an alternative to con ventional cow/calf production that involves in semination of nulliparous heifers with sexed semen to produce female calves that are early ... -
Effects of unprotected choline chloride on microbial fermentation in a dual-flow continuous culture depend on dietary neutral detergent fiber concentration
(2021-03)Choline is usually supplemented as ruminally protected choline chloride to prevent its degradation in the rumen, but the effects of unprotected choline on ruminal fermentation are unclear. Some research indicates a ... -
Effects of calcium–magnesium carbonate and calcium–magnesium hydroxide as supplemental sources of magnesium on microbial fermentation in a dual-flow continuous culture
(2020-12-22)Supplemental sources of Mg can also aid in ruminal pH regulation due to their al kaline properties. Magnesium oxide (MgO) is the most common source of Mg for ruminants and can help controlling ruminal pH; however, ... -
Effects of supplemental source of magnesium and inclusion of buffer on ruminal microbial fermentation in continuous culture
(2021-07)Magnesium oxide (MgO) is the most common supple mental source of Mg for dairy cows and a proven ruminal alkalizer when supplemented above NRC (2001) recommendations. However, overfeeding MgO may increase feeding costs, ... -
Causas de cosechado y características de hembras bovinas (Bos taurus, Bos indicus, Artyodactila: Bovidae) cosechadas en planta en Costa Rica del 2008 al 2009
(2014)s importante para el sector ganadero mantener controles periódi cos sobre producción, reproducción e industrialización para prever cualquier cambio que pueda afectarlo, y utilizar la información como base para la toma ... -
Shrink, weighing accuracy, and weighing precision of mineral supplement in five commercial dairies in the Western United States
(2021-05-10)Shrink, accuracy, and precision of ingredient weighing are critical factors of effi ciency in TMR-fed dairy systems. Those factors have been evaluated for major feeds; however, we are not aware of any reports for ... -
Effects of lactic acid-producing bacteria as direct-fed microbials on the ruminal microbiome
(2022)The objective of this study was to evaluate ruminal microbiome changes associated with feeding Lactobacillus plantarum GB-LP1 as direct-fed microbials (DFM) in high-producing dairy cow diets. A dual-flow continuous culture ... -
Effects of replacing magnesium oxide with calcium-magnesium carbonate with or without sodium bicarbonate on ruminal fermentation and nutrient flow in vitro
(2022)The objective of this study was to evaluate the effects of replacing magnesium oxide (MgO) with calcium-magnesium carbonate [CaMg(CO3)2] on ruminal fermentation with or without the addition of sodium bicarbonate (NaHCO3). ... -
Effects of choline chloride on the ruminal microbiome at 2 dietary neutral detergent fiber concentrations in continuous culture
(2022)Our objective was to evaluate the effects of unprotected choline chloride (Cho) on the ruminal microbiome at 2 dietary neutral detergent fiber (NDF) concentrations. We hypothesized that the effects of Cho on ruminal ...
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