Background: The application of novel technologies is now widely used to assist in making optimal decisions. This study aimed to evaluate the performance of linear discriminant analysis (LDA) and flexible discriminant analysis (FDA) in classifying and predicting Friesian cattle's milk production into low ([Formula: see text]4500 kg), medium (4500-7500 kg), and high ([Formula: see text]7500 kg) categories. A total of 3793 lactation records from cows calved between 2009 and 2020 were collected to examine some predictors such as age at first calving (AFC), lactation order (LO), days open (DO), days in milk (DIM), dry period (DP), calving season (CFS), 305-day milk yield (305-MY), calving interval (CI), and total breeding per conception (TBRD).
View Article and Find Full Text PDFThe target mono- and bis-(6-pyrazolyltriazolo-thiadiazine) derivatives and were synthesized using a straightforward protocol via reaction of 3-bromoacetylpyrazole with 4-amino--triazole-3-thiols and bis(4-amino-5-mercapto--triazol-3-yl)alkanes , respectively. The bis(6-pyrazolyl--triazolo[3,4-][1,3,4]thiadiazine) derivatives , and were also constructed by reaction of the triazolo[3,4-][1,3,4]thiadiazine-3-thiol with the proper dibromo compounds , and , respectively. Structures of the new substances were determined by spectroscopic and analytical data.
View Article and Find Full Text PDF3-Bromoacetyl-4-(2-naphthoyl)-1-phenyl-1H-pyrazole (6) was synthesized from 2-acetylnaphthalene and was used as a new key building block for constructing the title targets. Thus, the reaction of 6 with the thiosemicarbazones 7a-d and 9-11 afforded the corresponding simple naphthoyl-(3-pyrazolyl)thiazole hybrids 8a-d and 12 ~ 14. The symmetric bis-(2-naphthoyl-pyrazol-3-yl)thiazol-2-yl)hydrazono)methyl)phenoxy)alkanes 18a-c and 21a-c were similarly synthesized from reaction of 6 with the appropriate bis-thiosemicarbazones 17a-c and 19a-c, respectively.
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