ABSTRAKSusu adalah cairan putih yang keluar dari ambing sapi perah yang memiliki kandungan gizi yang baik. Kualitas susu sangat dipengaruhi oleh beberapa faktor salah satunya adalah Total Plate Count dan Colioform. Tujuan penelitian ini adalah untuk mengetahui perbandingan  susu sapi perah pada pemerahan pagi dan sore terhadap TPC dan Colioform di KUD Gemah ripah, Sukabumi. Metode penelitian yang digunakan adalah uji t berpasangan dengan sampel ternak sapi perah 14 ekor yang masing-masing diulang sebanyak 7 ekor dengan masa laktasi sama. Sampel susu diambil 100ml dari setiap ekor dengan waktu pemerahan berbeda kemudian dimasukkan pada coolbox untuk dilakukan pengujian nilai TPC dan Colioform di Laboratoium. Hasil penelitian menunjukkan bahwa TPC dan colioform pada pemerahan susu pagi hari menghasilkan pengaruh nyata (P<0,05) dibandingkan pada susu hasil pemerahan sore yaitu 1,1 x 106 CFU/ml dan 6985,714 CFU/mL. Kesimpulan menunjukkan bahwa TPC dan colioform pada susu pada berbagai waktu pemerahan yang berada di KUD gemah ripah, sukabumi termasuk pada kualitas yang premium jika dibandingkan dengan kualitas SNI.Kata kunci : colioform, pemerahan pagi sore, susu sapi perah, total plate count,ABSTRACKMilk is a white liquid that comes out of a dairy cow's udder which has good nutritional content. Milk quality is strongly influenced by several factors, one of which is the Total Plate Count and Coloform. The purpose of this study was to determine the comparison of milk from dairy cows in the morning and evening milking of TPC and Colioform in Kemah Gemah ripah, Sukabumi. The research method used was paired t test with samples of 14 dairy cows, each of which was repeated as many as 7 with the same lactation period. Milk samples were taken 100ml from each tail with different milking times and then put in a coolbox for testing the value of TPC and Coloform in Laboratory. The results showed that TPC and colioform in milking in the morning produced a significant effect (P<0.05) compared to milk produced by afternoon milking namely 1.1 x 106 CFU / ml and 6985.714 CFU / mL. The conclusions show that TPC and colioform in milk at various milking times in KUD Gemah ripah, sukabumi are included in premium quality when compared to SNI quality.Keywords: colioform, dairy cow milk, milking morning afternoon, total plate count

Altitude contributes and plays an important role in the development dairy cows in Indonesia. Altitude is directly related to temperature and humidity, both of which affect cardiovascular function and energy metabolism in dairy cattle. The 120 samples, consisted of 4th-5th lactation Friesian Holstein dairy cows were used in this study. The 40 samples of cattle each spread in three maintenance sites with different altitudes, namely 300 to 500 m above sea level (a.s.l.); 600-900 m a.s.l. and >1,000 m a.s.l.  All the study sites located in West Java, Indonesia, to study the effect of altitude on the cardiovascular biomarker and lipid regulation in the dairy cow. Based on the result in this experiment showed that the CRP high sensitivity, H-FABP, homocysteine, and γ-Glutamyl Transpeptidase in Frisian Holstein dairy cows expressed higher levels (P <0.05) at low altitude site (300-500 m a.s.l.) than dairy cows at altitude sites higher (600-900 and >1,000 m a.s.l.), These results indicated, these compounds can be biomarkers for cardiovascular function. This study also showed, the lipid regulation also showed higher levels (P <0.05) at low altitude sites than altitude sites higher.

The aim of this research was to know the production performance of Holstein Friesian dairy cow on first lactation based on milk production records and length of lactation. The research was done at PT. Ultra Peternakan Bandung Selatan, West Java. A method of the research used descriptive analysis. Milk production and length lactation period on first lactation were used as production performance variable. The data obtained from 2011-2015 production record of 750 dairy cows on first lactation. Production performance of dairy cows on first lactation were have average daily milk production of 18,94 ± 3,74 Kg, 359,29 ± 81,14 days on length of lactation, 102,19 ± 65,27 days on peak production. The highest daily milk production of dairy cows in the first lactation period was 29,06 Kg, the smallest was 4,76 Kg, the longest length lactation was 872 days and the shortest was 195 days.

Fresh milk that is good for consumption in terms of nutritional content and food safety must meet the applicable SNI. The quality of milk is largely determined by the components of substances contained in milk, including knowing the physical quality and chemical nutrient content. Research on Evaluation of Physical and Chemical Quality Content of Friesian Holstein Dairy Cows at BPPIB TSP Bunikasih was carried out in April-May 2021. The purpose of this study was to determine the physical quality of milk (color, flavor, taste, and specific gravity) and chemicals (fat, protein, and lactose) in first and second lactation FH cattle. This study uses a survey method with quantitative descriptive data analysis. The results showed that the physical quality of milk in the first lactation was yellowish-white, the characteristic flavor of milk, the sweet taste of milk, the density (BJ) of milk was 1.023 g/ml, the chemical quality of cow's milk in the first lactation was 4.86% fat content, protein 2.57%, and lactose 3.85% higher than lactation two on the physical quality of yellowish-white, distinctive aroma of milk, sweet taste of milk, density (BJ) 1.022 g/ml, the chemical quality of cow's milk in the second lactation, the fat is 4.67%, protein is 2.49%, and lactose is 3.73%. The conclusion of this study is the quality of milk in lactation one is higher than in lactation two. The physical quality of breast milk on density (BJ) still does not meet the Indonesian National Standard. The chemical qualities of milk are fat, protein, and lactose. The fat content of milk in each lactation has met the requirements of meeting the 2011 SNI, while the protein and lactose content of milk contained in BPPIB TSP Bunikasih is still below the 2011 SNI standard.

Information about milk production in dairy cows is obtained most accurately by daily recording, but with consideration, such as time and cost. This study aimed to obtain accurate and efficient recording patterns to estimate milk production in dairy cows. This research used recording of milk production in BBPTU-HPT Baturraden. The data used is the record of milk production of Test Day (TD) from the year 2014-2017 as many as 8696 records of TD that derived from 213 head of cows on first lactation. The record of TD milk production is the recording of milk production performed only on certain days during a lactation period. The milk production expectant curve used is the Ali-Schaeffer. The result of this research that Ali-Schaeffer equation with correlation between estimated and actual value (r) 0.991, standard error (se) 0.64, and standard deviation (stdv) 0,01. Recording of milk production Pattern 5, namely the recording of milk production in TD 1, 2, 5, 8, and 11, showed the highest correlation value (r=0.998). It is recommended to record the milk production in the early months of lactation and combined with the recording of TD milk production periodically every three months, from mid to late production.