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Mostrando ítems 1-9 de 9
Growth pattern characterization of Senepol heifers during the post-weaning period in Puerto Rico
(2021-05-14)
Senepol cattle at Finca Montaña (Aguadilla, PR) have been highly selected for improved weight gain under Puerto Rico’s environmental and management conditions. However, Finca Montaña’s body weight (BW) records suggest a ...
Efecto de L-carnitina dietética sobre algunos parámetros repodcutivos en semen de gallos Brown Leghorn
(2020-05-26)
One hundred thirty-day-old male breeders of the Brown Leghorn breed were randomized to diets with 0, 250 and 500 mg/kg of L-carnitine. All birds were fed equal amounts of their respective diet from the first week until the ...
Efecto de la alimentación con pasto Maralfalfa comparado a pasto Buffel y sorgo forrajero sobre la producción láctea en vacas Holstein regulares y pelonas
(2020-12-10)
The dairy industry in Puerto Rico relies on the use of high concentrate diets to feed their cows, due to the lack of quality forage; this increases feeding costs. Therefore it is important to maximize forage intake in order ...
Effect of slaughter age on quail (Coturnix japonica) growth, meat quality, and feed efficiency in Puerto Rico
(2021-05-12)
This study evaluated the growth and economic efficiency of raising quail in Puerto Rico while considering changes in meat quality due to age and sex to identify an optimal slaughter age. Carcass yield and composition, ...
Rendimiento productivo, características de la canal y cortes y calidad de carne de corderos alimentados con dietas isonitrogenadas con dos niveles de nutrientes digeribles totales
(2020-05-29)
The effect of feeding total isonitrogenate rations with 2 percentage levels of total digestible nutrients on dry matter consumption (CVMS), daily (GPD), and total weight gain (GPT) and feed conversion (CA) of growing native ...
Efectos de un protocolo de alimentación intensiva sobre el crecimiento y salud de becerras y becerros Holstein y Jersey en el trópico
(2020-05-26)
The objective of this research was to assess the growth and health of Holstein and Jersey calves under an intensive feeding protocol (INT) and a traditional feeding protocol (TRA) under tropical conditions. Calves were ...
Progesterone, insulin, and non-esterified fatty acids concentration in the blood of slick hair and wild type heifers
(2021-05-13)
The objective of this investigation was to study the effect of the slick hair genotype (SH) on the concentration of progesterone, insulin and non-esterified fatty acids (NEFA) in dairy heifers. The estrus of Holstein heifers ...
Assesment of the feed efficiency of slick Holsteins, wild type Holsteins and Jerseys when fed total mixed rations under heat stress
(2021-05-13)
Global warming has caused an increase in temperatures worldwide, having a direct effect on the dairy industry justifying our study of the effects of heat stress (HS) on milk yield (MY), milk composition (MC), dry matter ...
Estrategias para mejorar la eficiencia de la producción de carne de res en el trópico: II. Efecto del genotipo y del nivel nutricional sobre las características y composición de la canal de toretes engordados a pastoreo
(2020-05-29)
Sixty-nine Charolais x Senepol crossbred calves (Genotype = XSEN: > Senepol influence; XCHA: > Charolais influence) grazed tropical pastures under three nutritional planes (T1: grazing at a stocking rate of 1.1 head/acre; ...