EFFECTS OF DIETARY SUBSTITUTION WITH GUAR KORMA MEAL (Cyamposis tetragonoloba) ON PRODUCTIVE PERFORMANCE, NUTRIENTS DIGESTIBILITY, CARCASS CHARACTERISTICS AND HEMATOLOGICAL BLOOD PICTURE OF GROWING RABBITS

2017 ◽  
Vol 27 (1) ◽  
pp. 77-89
Author(s):  
Amany Waly ◽  
Fadila Easa ◽  
Ayat Ragab ◽  
Amal Hekal
Keyword(s):  
Carcass Characteristics ◽  
Productive Performance ◽  
Blood Picture ◽  
Dietary Substitution ◽  
Nutrients Digestibility

scholarly journals Growth performance and safety of meat from cattle feedlot finished with monensin in the ration

2018 ◽  
Vol 39 (2) ◽  
pp. 697 ◽  
Author(s):  
Mikael Neumann ◽  
Robson Kyoshi Ueno ◽  
Julio Cezar Heker Junior ◽  
Eloize Jaqueline Askel ◽  
André Martins de Souza ◽  
...  
Keyword(s):  
Dry Matter ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Corn Silage ◽  
Dry Matter Intake ◽  
Control Group ◽  
Productive Performance ◽  
Feed Conversion ◽  
Edible Tissues ◽  
Fat Thickness

Monensin is an ionophore antibiotic, the inclusion of which in the feed of beef cattle favors the best use of feed nutrients, via ruminal modulation. However, there are concerns regarding the residence of residues in the carcass from metabolism of monensin. The objective of this study was to evaluate the productive performance, carcass characteristics, serum parameters, tissue residual depletion and economic benefit of finishing of young bulls in confinement with monensin in the ration. Thirty-six animals were confined, and given 50% corn silage feed and 50% more concentrated feed. The experimental design was completely randomized, with two treatments (with or without monensin) and 10 replicates for the control group and eight for the monensin group. The use of monensin reduced the dry matter intake in relation to live weight (2.36% vs 2.55%), and improved feed conversion (8.61 vs 10.06 kg kg?1); the animals presented higher live weight (511 vs 494 kg), higher warm carcass weight (285 vs 272 kg) and an increase in fat thickness (4.97 vs 4.25 mm) compared to control animals. These increases in performance gave higher economic results, with a profit margin of R$ 122.84 per animal. A waiting period of 16 h before slaughter resulted in monensin concentrations below 0.25 µg kg?1 in edible organs and tissues, values well below those permitted by legislation. The use of monensin for young bulls in confinement promoted improvements in productive and economic performance, without leaving residues in edible tissues.

scholarly journals REARING DENSITY IN THE PERFORMANCE AND PROFITABILITY OF ROSS 308 BROILERS

2021 ◽  
Vol 8 (2) ◽  
pp. e5856
Author(s):  
Higor Jonathan de Oliveira Silva ◽  
Andréia Fróes Galuci Oliveira de Souza ◽  
Elis Regina de Moraes Garcia ◽  
Meiby Carneiro de Paula Leite ◽  
Leticia Gabriela Talhaferro Cassuci ◽  
...  
Keyword(s):  
Production Efficiency ◽  
Bone Development ◽  
Stocking Density ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Efficiency Index ◽  
Abdominal Fat ◽  
Productive Performance ◽  
Randomized Experimental Design ◽  
Rearing Density

The objective was to evaluate the effect of stocking density on productive performance, carcass characteristics, productivity, bone development, and profitability of Ross 308 broilers. A completely randomized experimental design with four stocking densities (10, 12, 14, and 16 birds m-2) and four replicates, and the subplots the bone collection ages (7, 14, 21, 28, 35, and 42 days old). The variables analyzed were live weight at 21 and 42 days, weight gain, feed intake, and conversion in the accumulated periods from 1 to 21 and 1 to 42 days. Weights of carcasses, commercial cuts, edible viscera, abdominal fat, productivity, production efficiency index, viability, and profitability were evaluated. The length, thickness, weight, and Seedor index of long bones (tibiotarsus and femur) were also evaluated. The yield was higher for densities of 14 and 16 birds m-2. The thickness of the tibiotarsus was lower in the density of 12 birds m-2. The increase in the stocking density of 10 or 12 birds m-2, to 14 birds m-2 allows greater productivity per area, without compromising the productive performance, such as carcass characteristics and the animal's bone development, besides being the breeding density with the highest profitability, considering the welfare of Ross 308 broilers.

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