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| Harl,JC; Harms,RH; Wilson,HR; Russel,GB. |
| Two experiments wore conducted to evaluate the chloride requirement of the broiler breeder hen. Experiments were conducted for a twelve-week period and seven experimental diets wore fed. The diets contained the following dietary chloride levels: 0. 040, 0. 047, 0. 054, 0.060, 0.073, 0.09g, and 0. 174%. Sodiam bicarbonate was used to maintain a constant level of sodium. Levels of dietary chloride below 0.054% reduced EF; EW, & EC (ED X (EW-shell wt). Also, the highest level of dietary chloride reduced all characteristics. Dietary chloride did not have a significant effect on body weight gain or fertility and hatchability of eggs. The Nationa/ Research Council (1994) suggests that the broller breeder hen have daily chloride intake of 185 milligrams... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler breeder; Chloride; Egg production; Egg weight; Hatchability. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2000000300007 |
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| Faria,DE; Harms,RH; Russell,GB. |
| Three hundred and twenty Hy-Line W36<FONT FACE=Symbol>Ò</FONT> commercial laying hens, 39 weeks of age, were used to determine the sequence and the length of time needed for hens to recover performance characteristics after an eight-week period under graded levels of threonine deficiency. Eight experimental diets with Thr levels ranging from 0.35 to 0.53% were randomly fed with eight replicates of five hens each. After the previous experiment, the hens were fed a control diet (0.53% Thr) for a four-week period. Feed consumption (FC), energy intake (EI), egg production (EP), egg weight (EW), egg mass (EM), and body weight (BW) were evaluated. All performance characteristics were impaired on Thr deficient diets. The recovery sequence order was FC... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acid deficiency; Egg production; Laying hens; Threonine. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200007 |
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| Harms,RH; Russell,GB; Bohnsack,CR; Merkel,WD. |
| Hy-Line W36 hens were fed diets containing zero or 6% corn oil (CO) from 26 to 38 wk of age. At 38 wk, the hens receiving the diet with 6% CO were divided into three groups. One group continued to receive the diet with 6% CO. The level of CO in the diet was reduced to zero or 3% in the other two groups. The hens previously fed the diet without CO continued to receive the control diet. Egg weight was significantly heavier when the diet contained 6% CO and was not significantly reduced when the level of CO was reduced to 3%. Egg weight from control hens was significantly lower than the EW from hens that had received CO in the diet until 38 wk but none thereafter. Hens fed the diet with CO consumed more energy than hens fed the control diet. However, when CO... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Commercial layer; Corn oil; Egg weight; Energy intake. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000300009 |
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