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Journals / Türk Tarım - Gıda Bilim ve Teknoloji dergisi / 2015 / Cilt: 3 - Sayı: 7

Some Environmental Factors Affecting Birth Weight, Weaning Weight and Daily Live Weight Gain of Holstein Calves

Erdal YAYLAK
HİKMET ORHAN
Alim DAŞKAYA
Pages
617–622
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

The overall mean of birth weights was 39.6±0.15 kg.

📌 3 Key Takeaways

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Objective & Hypothesis:The present study was conducted to determine some environmental factors affecting birth weight, weaning weight and daily live weight gain of Holstein calves of a livestock facility in Izmir, Turkey.
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Key Findings & Data:The data on 2091 calves born between the years 2005-2010 were used to assess the relevant parameters.
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Conclusion & Impact:The overall mean of birth weights was 39.6±0.15 kg.
🔬Design:Research Article
📍Scope:2091 Verileri
⚙️Variables:Domain Parameters

Abstract

The present study was conducted to determine some environmental factors affecting birth weight, weaning weight and daily live weight gain of Holstein calves of a livestock facility in Izmir, Turkey. The data on 2091 calves born between the years 2005-2010 were used to assess the relevant parameters. Effects of calving year, calving month, calf gender and the interaction between calving year and calving month on calves’ birth weights were highly significant. The overall mean of birth weights was 39.6±0.15 kg. In addition, effects of calving year, calving month, gender, birth weight, weaning age, calving year x calving month, calving year x gender and calving year x calving month x gender interactions on weaning weight (WW) and daily live weight gain (DLWG) were highly significant. The overall means of WW and DLWG were respectively found to be 79.7±0.20 kg and 525±2.5 g. A one kilogram increase in birth weight resulted in an increase of 0.89 kg in weaning weight and a decrease of 1.26 g in daily live weight gain. Prenatal temperature-humidity index (THI) affected birth weight of calves (R2 =0.67). Increasing THI from 50 to 80 resulted in 3.8 kg decrease in birth weight.

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Cite This Article

YAYLAK, E., ORHAN, H., DAŞKAYA, A. (2015). Some Environmental Factors Affecting Birth Weight, Weaning Weight and Daily Live Weight Gain of Holstein Calves. Türk Tarım - Gıda Bilim ve Teknoloji dergisi, Cilt: 3 - Sayı: 7, 617–622. https://ajindex.com/articles/331744

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