63 documents found, page 1 of 7
Chromium and energy restriction as substitutes for ractopamine in finishing gil...
Farias,Taynah Vieira Aguiar; Kiefer,Charles; Nascimento,Karina Marcia Ribeiro de Souza; Corassa,Anderson; Alencar,Stephan Alexander da SilvaABSTRACT: This study evaluated chromium supplements and energy restriction as substitutes for ractopamine in the diets of late finishing gilts. Sixty gilts were used, with initial weights of 98.87 ± 0.25 kg and final weights of 122.69 ± 10.97 kg, distributed in a randomized block design with five diets: control; yeast chromium (0.8 ppm); chromium picolinate (0.48 ppm); ractopamine (20 ppm) and energy restrictio...
Yeast chromium and digestible lysine levels in finishing pigs subjected to high...
Santos,Alexandre Pereira dos; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Corassa,Anderson; Silva,Jéssica Lira daABSTRACT: This study evaluated the effects of chromium yeast and digestible lysine levels on the performance and carcass characteristics of finishing pigs. Sixty-four barrows with an initial weight of 72.77 ± 7.20 kg and final weight of 119.44 ± 9.47 kg were used, distributed in a 2 x 2 factorial scheme, with two levels of chromium yeast (Cr0: 0 ppb and Cr800: 800 ppb) and two levels of digestible lysine (L0: r...
Lipid profile of subcutaneous fat, growth performance, and carcass characterist...
Marçal,Danilo Alves; Kiefer,Charles; Alencar,Stephan Alexander da Silva; Farias,Taynah Vieira Aguiar; Santos,Luana Cristiane dos; Viana,Luiz HenriqueABSTRACT: This study identified the effects of dietary supplementation with ractopamine, chromium picolinate, chromium yeast, or an energetic feed restriction on the growth performance and lipid profile of subcutaneous fat, in late finishing gilts. Twenty genetically similar gilts with initial body weight of 105.35 ± 4.77 kg and a final body weight of 131.37 ± 5.58 kg were distributed in a completely randomized...
Dietary net energy levels for growing barrows from 30 to 70 kg
Rodrigues,Gabriela Puhl; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Corassa,Anderson; Marçal,Danilo Alves; Bonin,Marina de NadaiABSTRACT: This study evaluated the effect of dietary net energy (NE) levels on growth performance and carcass characteristics of barrows from 30 to 70 kg of body weight (BW). Sixty barrows with initial body weight (IBW) of 31.94 ± 3.54 kg and final body weight (FBW) of 71.98 ± 5.99 kg were allotted to one of five dietary NE levels (2.40, 2.45, 2.50, 2.55, and 2.60 Mcal kg-1), using a completely randomized block...
Digestibility, performance and economic efficiency of diets containing phytase ...
Corassa,Anderson; Silva,Daniela Rocha da; Ton,Ana Paula Silva; Kiefer,Charles; Sbardella,Maicon; Brito,Claudson de OliveiraABSTRACT This study aimed to evaluate the effects of phytase enzyme and distillers dried grains with solubles (DDGS) on the digestibility, performance and economic viability of growing pigs. Two experiments were conducted with a reference diet (RD) based on corn and soybean meal: RD with 200 g kg -1 DDGS (DDGS); RD + 1,000 units of phytase (PHY); and RD + 200 g kg-1 DDGS + 1,000 units of phytase (D+P). In exper...
Effects of negative pressure and directed ducted cooling systems on the perform...
Silva,Ariadne Maria Portilho Saturnino da; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Corassa,Anderson; Sarturi,Débora MinettiABSTRACT The objective of the present study was to evaluate the effects of cooling systems by negative pressure versus directed ducts on the performance of lactating sows and their litter. The experiment was conducted in a tropical climatic region in Brazil. Ninety-four lactating sows during 26.2±1.7 days of lactation were included with their 1,236 piglets. Sows were distributed using a completely randomized bl...
Dried distillers grains with solubles in diets during late gestation affects be...
Corassa,Anderson; Silva,Lariza Luana da; Souza,Caroline; Rodrigues,Luiz José; Lemes,Geriel Araujo; Kiefer,Charles; Sbardella,MaiconABSTRACT We examined the effect of dried distillers grains with solubles (DDGS) in diets for late gestating sows on sow and litter performance, colostrum chemical composition, and sow behavior. Sixty gestating sows of 3.77±1.65 parity were divided into three groups of 20 animals, in a randomized block design with 0 (corn-soybean meal diet), 150, or 300 g kg−1 DDGS from 84 days of gestation until farrowing. Sows...
Nutritional plans of net energy with a constant calorie:nutrient ratio on the p...
Rodrigues,Gabriela Puhl; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Corassa,Anderson; Silva,Jéssica Lira da; Silva,Camilla MendonçaABSTRACT This study was conducted to evaluate different nutritional plans of net energy (NE) with a constant calorie:nutrient ratio on the performance of piglets from 7 to 30 kg. Sixty barrows with an initial weight of 7.11±0.89 kg were distributed among five nutritional plans: two NE-decreasing plans (A and B, starting from NE concentrations of 2.47 and 2.52 Mcal kg−1, respectively, and ending both at 2.37 Mca...
Dietary chromium yeast supplementation length in diets for growing-finishing pigs
Sanches,Danilo de Souza; Garcia,Elis Regina de Moraes; Rodrigues,Gabriela Puhl; Kiefer,Charles; Marçal,Danilo Alves; Alencar,Stephan Alexander da SilvaABSTRACT This study aimed to evaluate different periods of chromium yeast (CrY) supplementation on growth performance and quantitative carcass characteristics of growing-finishing pigs. We used eighty barrows (Duroc/Pietran × Large White/Landrace) with an initial body weight of 24.5±2.4 kg. A completely randomized block design was used within four periods of dietary CrY supplementation (control diet: CrY-free, ...
Combined supplementation of chromium-yeast and selenium-yeast on finishing barrows
Rodrigues,Gabriela Puhl; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Corassa,Anderson; Garcia,Elis Regina de Moraes; Marçal,Danilo AlvesABSTRACT: The present study was performed to evaluate the association of chromium-yeast and selenium-yeast as nutritional additives to enhance performance and quantitative characteristics in the carcass of finishing barrows. A total of 48 barrows, commercial hybrid, with initial weight of 68.3±3.5 kg and final weight of 99.6±3.6 kg, were utilized for the study. The animals were distributed in a randomized compl...