Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets
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چکیده
منابع مشابه
Lysine Requirement for Barrows Fed Ractopamine
and ADFI at week 4 (P = 0.02). During phase 2 (week 3 to 4), greater ADG (P = 0.05) and ADFI (P = 0.004) were observed in pigs consuming a diet containing DDGS (Treatments B and D) compared to pigs that did not receive DDGS in phase 1 (Treatments A and C); however, G:F ratio was not affected by DDGS. There was a lactose effect on ADG in week 3 (P = 0.05) and a trend of lactose effect on ADG dur...
متن کاملEstimation of the Optimal Ratio of Standardized Ileal Digestible Threonine to Lysine for Finishing Barrows Fed Low Crude Protein Diets
Two experiments were conducted to determine the standardized ileal digestible (SID) lysine (Lys) requirement and the ideal SID threonine (Thr) to Lys ratio for finishing barrows. In Exp. 1, 120 barrows with an average body weight of 72.8±3.6 kg were allotted to one of six dietary treatments in a randomized complete block design conducted for 35 d. Each diet was fed to five pens of pigs containi...
متن کاملLysine Requirement of Broiler Chickens Fed Low-density Diets under Tropical Conditions
Two experiments were conducted to determine the lysine requirement of straight-run broiler chickens (Hubbard× Hubbard) during the period 4-21 (Exp. 1) and 21-40 (Exp. 2) days of age. Experiments were conducted during the summer months (June-August) in open-sided houses, thus exposing chicks to chronic heat stress. Daily min-max temperature averaged 28-40°C (Exp. 1) and 23-36°C (Exp. 2). Lysine ...
متن کاملProtein requirement of baby pigs on low-fat diets.
For some time studies have been made in this laboratory on the use of the baby pig as an experimental animal, and during this work diets low in fat have been found to support satisfactory performance (Tribe, 1954; McCrea & Tribe, 1956). This finding is somewhat surprising in view of the fact that sow’s milk is very rich in fat. For routine rearing of piglets a low-fat diet is preferable to one ...
متن کاملBody composition, tissue deposition, and lysine utilization for protein deposition of barrows and gilts fed crystalline or protein-bound lysine.
An experiment with 2 trials (28 d/trial) was conducted to determine body composition, tissue deposition, and utilization of Lys for protein deposition (PD) of barrows and gilts fed -Lys·HCl (CLys) or protein-bound Lys in soybean meal (SBM). Thirty-two growing pigs (16 barrows and 16 gilts; average initial BW of 18.6 kg) were used in each of 2 trials. Four pigs (2 barrows and 2 gilts) were eutha...
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ژورنال
عنوان ژورنال: Brazilian Archives of Biology and Technology
سال: 2008
ISSN: 1516-8913
DOI: 10.1590/s1516-89132008000100007