scholarly journals Effect of frying fat substitution by vegetable oil and energy concentration on diets for productive performance of broilers

CienciaUAT ◽  
2016 ◽  
Vol 10 (2) ◽  
pp. 44 ◽  
Author(s):  
Jaime Salinas-Chavira ◽  
Héctor Manuel Orduña-Hernández ◽  
Martín Francisco Montaño-Gómez ◽  
Fidel Infante-Rodríguez ◽  
Olga Maritza Manríquez-Núñez ◽  
...  

En la dieta de pollos de engorde se adicionan lípidos para mejorar su eficiencia productiva, generalmente grasa de fritura (GF), reciclada de restaurantes, por tener menor costo que el aceite vegetal (AV). El objetivo de este trabajo fue evaluar el efecto de la sustitución de GF por AV en dietas estándar (DEE) y dietas altas en energía (DAE) sobre el comportamiento productivo de pollos de engorde. Se alimentó durante 42 d a 200 pollos mixtos ROSS, de un día de edad y peso promedio de 37.2 g ± 0.89 g. El estudio se realizó en dos fases de 21 d: inicio y acabado. Se usó un diseño experimental al azar con arreglo factorial 2 x 2 con la fuente de lípidos (GF y AV), laconcentración de energía (DEE y DAE) y su interacción como efectos principales. La energía metabolizable en la fase de inicio fue 2 994 kcal/kg y 3 013 kcal/kg, y en la fase de acabado fue 3 081 kcal/kg y 3 111 kcal/kg en DEE y DAE, respectivamente. La fuente de lípidos no influyó (P > 0.05) sobre las variables de estudio. En la fase de inicio, los pollos alimentados con la DAE ganaron más peso y mostraron mejor conversión alimenticia (P < 0.05) que los pollos en la DEE, aunque el consumo de alimento fue similar (P > 0.05). En la fase de acabado, los pollos alimentados con la DAE ganaron más peso (P < 0.05) y consumieron más alimento (P < 0.05) que los pollos alimentados con la DEE. No se observó efecto de la concentración de energía sobre la conversión alimenticia (P > 0.05). Se concluyó que la fuente de lípidos no influyó en los parámetros productivos, pero el incremento en concentración energética mejoró significativamente el comportamiento productivo de los pollos de engorde. Archivo XML (SciELO)

2012 ◽  
Vol 91 (12) ◽  
pp. 3156-3166 ◽  
Author(s):  
A. Pérez-Bonilla ◽  
S. Novoa ◽  
J. García ◽  
M. Mohiti-Asli ◽  
M. Frikha ◽  
...  

2020 ◽  
Vol 22 (4) ◽  
Author(s):  
DA Villanueva-Lopez ◽  
F Infante-Rodríguez ◽  
OG Nájera-Pedraza ◽  
HB Barrios-García ◽  
J Salinas-Chavira

2011 ◽  
Vol 63 (3) ◽  
pp. 670-677 ◽  
Author(s):  
A.K. Ikeda ◽  
J.A.S. Zuanon ◽  
A.L. Salaro ◽  
M.B.D. Freitas ◽  
M.D. Pontes ◽  
...  

The influence of fatty acid composition of the diets on the productive performance and on cold and heat tolerance of juvenile freshwater angelfish (Pterophyllum scalare), in three different phases, was studied. Phase I studied the productive performance of freshwater angelfish in a completely randomized experimental design with four treatments, canola, linseed, olive and soybean oils and four replicates during 50 days using 192 fish in 16 aquaria. Phase II studied the cold tolerance of juvenile freshwater angelfish using 72 juvenile freshwater angelfish, coming from phase I and maintained in 12 aquaria climatized chamber. The temperature was reduced 1ºC per day, until the observation of 100% fish mortality. Phase III, it was studied the heat tolerance of juvenile freshwater angelfish employing an identical procedure to phase II, but with a daily increase of 1ºC. Significant differences (P>0.05) were not observed for any parameters evaluated. Thus, it was concluded that the type of vegetable oil (canola, linseed, olive and soybean) used as a diet supplement did not affect the productive performance, nor the tolerance to cold and heat, of juvenile freshwater angelfish.


2015 ◽  
Vol 94 (2) ◽  
pp. 249-261 ◽  
Author(s):  
P. Guzmán ◽  
B. Saldaña ◽  
H.A. Mandalawi ◽  
A. Pérez-Bonilla ◽  
R. Lázaro ◽  
...  

2015 ◽  
Vol 14 (1) ◽  
pp. 167-186
Author(s):  
Mudhar A. S. Abu Tabeekh ◽  
Riyad K. Mosa ◽  
Rabia J. Abbas

2019 ◽  
Vol 72 (04) ◽  
pp. 370-374
Author(s):  
Sukthija . ◽  
Vivek Sharma . ◽  
Sumit Arora . ◽  
Richa Singh . ◽  
P N Raju . ◽  
...  

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE


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