Decisive heifer management for improved lactation and reduced dystocia requires a systematic analysis of age, body weight (BW), and average daily gain (ADG) using an adequately large sample size. The objective of this study was to determine effects of BW and age at first breeding and ADG until pregnancy on yields of milk, milk fat, and milk protein in the first lactation and the occurrence of d...

Background: Pneumoconiosis occurs almost all in entire worldwide. had threatened cement workers. Serologic abnormalities found pneumoconiosis. Surfactant Protein D (SP-D) levels increased silica exposed may be useful biomarkers for early diagnosis of pneumoconiosis but it has not yet been studied Indonesia.Method: This is a cross-sectional study and was done by consecutive sampling. The total s...