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Nitrogen maintenance requirements and potential for nitrogen retention of pullets in growth phase
(Wiley-Blackwell, 2019-07-01)
Experiments were conducted to estimate daily N maintenance requirements (NMRs) and the genetic potential for daily N retention (NRmaxT) of pullets in growth phase. Three nitrogen balance trials were conducted, and a total ...
Beak-trimming methods and their effect on the performance of japanese quail pullets (Coturnix japonica)
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2006-12-01)
This study aimed at verifying if beak-trimming methods in Japanese quail pullets could optimize production by decreasing stress caused by cannibalism. A total number of 816 day-old Japanese quails was distributed in a ...
Beak-trimming methods and their effect on the performance of japanese quail pullets (Coturnix japonica)
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2006-12-01)
This study aimed at verifying if beak-trimming methods in Japanese quail pullets could optimize production by decreasing stress caused by cannibalism. A total number of 816 day-old Japanese quails was distributed in a ...
Beak-trimming methods and their effect on the performance of japanese quail pullets (Coturnix japonica)
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2013)
Estimation of desired feed intake for growth and reproductive organ development in pre-laying hens
(Csiro Publishing, 2019-01-01)
The objective of the present study was to describe the growth of reproductive organs and, on the basis of this information, predict feed intake during the pre-laying phase of laying-type pullets and to evaluate the results ...
Sulfur amino acid requirements for pullets in growth and pre-laying trials
(2021-09-01)
Context: To obtain a good performance of the hens in the laying phase, adequate nutrition in the growth and pre-laying phase is necessary, especially for meeting amino acid requirements that are related to development of ...
Exigências de proteína para frangas de postura de 1 a 18 semanas de idade
(1998-05-01)
The objective of this experiment was to determine the protein requirements for hen pullets from 1 to 18 weeks of age, by factorial method, using the nitrogen balance and the comparative slaughtering techniques. Protein ...
Exigências de proteína para frangas de postura de 1 a 18 semanas de idade
(1998-05-01)
The objective of this experiment was to determine the protein requirements for hen pullets from 1 to 18 weeks of age, by factorial method, using the nitrogen balance and the comparative slaughtering techniques. Protein ...
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols
(Fundação APINCO de Ciência e Tecnologia Avícolas, 2018)
The aim of this study was to compare the effects of beak trimming by hot blade or infrared radiation on production indicators and plasma levels of corticosterone in pullets. During the rearing phase, an entirely random ...