DATASET FOR PERFORMANCE OF SUPERIOR DAIRY CATTLE SIRES

Description

This study's object includes animal identity data, pedigree data, and milk production performance records for Holstein Friesian dairy cows born between 2017-2021. This study's parameters included milk yield, length of lactation, peak production, and dry length period. Another factor to consider is the environmental state. High air temperatures have a negative impact on dairy cow welfare and production across Europe, especially tropical regions. This causes severe cattle losses. Humidity, air velocity, and insolation all have a major impact on animal thermoregulation. Special indices are employed to measure the overall impact of various environmental conditions on animals. The temperature-humidity index (THI) is commonly used to assess how ambient temperature and relative humidity affect animals. Genetic advancement on selection indicators in dairy farming by 90-95% depends on the amount of breeding value of bull breeders. Realizing how breeding value (BV) is passed down across generations is crucial for selecting the right pairs and advancing the breed. Accurate and detailed forecasts help farmers decrease economic risks when selecting genetic material. Estimation of breeding value uses the BLUP method since this method is the most accurate estimated breeding value of sire compared to other methods The production performance of FH dairy cattle is included in the good category. For 1st lactation, which has an average milk production of 8,029.28 ± 1,112 kg; length of lactation 321.26 ± 38.48 days; peak production on day 85.36 ± 29.25 with milk production of 32.55 ± 4.16 kg; and the dry length period was 51.37 ± 9.33 days. Lactation 2 milk production 7,761.66 ± 1,145 kg; length of lactation 323.66 ± 43.06 days; peak production on day 58.43 ± 21.11 with milk production 40.79 ± 5.30 kg; and dry length period was 65.10 ± 22.69 days. Lactation 3 milk production 7,788.92 ± 1,148 kg; length of lactation 326.64 ± 46.74 days; peak production on day 61.88 ± 22.72 with milk production 43.62 ± 5.11 kg; and the dry length period was 65.00 ± 20.49 days. Lactation 4 milk production was 7,484.18 ± 1,133 kg, lactation length was 323.04 ± 42.23 days, peak production was on day 66.39 ± 24.26, milk production was 43.82 ± 5.68, and the dry length period was 65.78 ± 21.60 days. The heritability value of FH cow milk production namely 0.03 ± 0.02, is included in the low category. Differences in heritability values is due to differences in the type of data and statistical analysis used. Low heritability estimates indicated that the differences in the performance traits of Holstein cows were due to different nutritional, climatic conditions, and management practices prevalent over different times. Ranking of 10 sire’s that have the genetic potential of their offspring based on their estimated breeding value, namely O.S. Elmer-XA, M.Z. Merlin-XA, L. Muscadet-XA, C.Toyjet, S. Gypsy B, WestCoastPldge, M.Z. Merlin-ET, Brasilia, L.JetBowser-XA, and MRMUDD-XA.

Steps to reproduce

The data is tabulated and then sorted according to what is relevant, namely cow’s number, dam, sire, date of birth, calving date, milk yield, length of lactation, peak production, and dry length period. Milk yield is the total amount of milk during lactation. Length of lactation, is the phase when the cow starts producing milk until it stops milking or the dry-stall phase. Peak production is the day and total milk when a lactation period reaches a high point in milk production. Dry period length, is the phase when cows stop producing milk until partus or calving. Productivity performance in the form of four variables, then carried out the quantitative descriptive analysis, namely maximum value, minimum value, average, standard of deviation. Milk production is standardized using United States Department of Agriculture (USDA) correction factors which have been modified according to Indrijani. Heritability was estimated using Variance Component Estimation (VCE) 6 software, and Breeding Value was estimated using Best Linear Unbiased Prediction (BLUP) using Parameter and Estimation (PEST) software. The temperature and humidity index for dairy cows are calculated based on the research formula of Nascimento, et al.,

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