Encontrados 6 documentos, a visualizar página 1 de 1
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...
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...
Sequential metabolizable energy plans for piglets from 7 to 30 kg
Silva,Jéssica Lira da; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Corassa,Anderson; Carvalho,Kelly Cristina NunesABSTRACT: The objective of this study was to evaluate sequential metabolizable energy (ME) plans, maintaining the lysine: calorie ratio for piglets from 7 to 30 kg. Forty eight female piglets with initial weight of 6.9 ± 1.2 kg and final weight of 30.5 ± 3.8 kg were randomly allocated in a randomized complete blocks design to three nutritional plans with eight replicates and two animals per experimental unit. S...
Nutritional plans of digestible phosphorus for gilts from 30 to 100 kg
Carvalho,Kelly Cristina Nunes; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Santos,Tânia Mara Baptista dos; Bonin,Marina de NadaiABSTRACT The objective of this study was to evaluate sequential digestible phosphorus levels for gilts from 30 to 100 kg. Sixty gilts were used, with an initial weight of 29.98±3.37 kg and final weight of 100.66±8.82 kg, distributed in a randomized block design, with five nutritional digestible phosphorus levels: 2.19-1.88-1.68, 2.69-2.38-2.18, 3.19-2.88-2.68, 3.69-3.38-3.18, and 4.19-3.88-3.68 g kg−1, respecti...
Dietary net energy for gilts from 25 to 100 kg body weight
Marçal,Danilo Alves; Kiefer,Charles; Nascimento,Karina Márcia Ribeiro de Souza; Bonin,Marina de Nadai; Corassa,AndersonABSTRACT This experiment was conducted to evaluate the growth performance and carcass characteristics of gilts from 25 to 100 kg body weight (BW) fed diets with increased net energy (NE) levels. Seventy-two gilts with initial BW of 23.24±2.47 kg were allotted to one of six dietary treatments (2300, 2380, 2460, 2540, 2620, and 2700 kcal NE kg−1) using a completely randomized block design, with two pigs per repli...