Data for Comparison of milk production of Maralfalfa (Pennisetum Sp), Cameroon (Pennisetum Purpureum) and Mulato (Ciat 36087) in dairy cattle

The data describes the process and the management of the information for the study that compares the milk production and the production costs of a liter of milk of 33 dairy cows of two breeds: Brown Swiss and Jersey, fed with Maralfalfa (Pennisetun Sp) pastures. , Cameroon (Pennisetum purpureum) and Mulatto (Ciat 36087). The productive and reproductive biological variables with an impact on milk production are analyzed, including the most important days open, age at first calving, number of calvings and live weight. The basic selection criteria of the breeders for our study was that they had less than 60 open days; Selected cows should be in peak lactation. The milk production of the cows under study fed only with grazing Mulato was evaluated for 30 days, to generate a productive record and to have a productive history of these. After 30 days of monitoring milk production, the group of 33 cows was randomly divided into 3 groups, 11 cows per group, and they were assigned the type of grass to consume, establishing the Maralfalfa consumption group (G1). the consumer group from Cameroon (G2) and the control group with grazing mulatto (G3). A record of daily milk production of each cow was kept for 6 uninterrupted weeks, they were given equal management, in the same environment and with ad libitum feeding to the 3 groups under study with the only difference being the type of grass to be consumed. .
When comparing the milk production of the groups of cows under study using the 1-Factor Anova statistical program, we found very significant statistical differences (p < 0.01) between the three groups studied from week 2 onwards. The most marked difference was presented by the G1 vs. G3 group. According to our results, the grass with the best productive efficiency for milk production is the Maralfalfa grass, since the group that consumed this grass was the one that presented the greatest increases in production volumes. However, when comparing the production costs of a liter of milk, we find that the highest cost is for maralfalfa and the lowest for mulatto and therefore the cost-benefit ratio is in favor of mulatto followed by Cameroon and maralfalfa respectively.

本数据集记录了一项对比试验的完整流程与信息管理情况，该试验针对两个奶牛品种——布朗瑞士牛（Brown Swiss）与泽西牛（Jersey）的33头泌乳牛，分别饲喂三种牧草：马阿尔法尔法草（Maralfalfa，Pennisetun Sp）、喀麦隆象草（Cameroon，Pennisetum purpureum）以及穆拉托草（Mulatto，Ciat 36087），并分析其产奶量与每升牛奶的生产成本。本研究同时分析了影响产奶量的生产与繁殖生物学变量，包括核心的空怀天数、初产月龄、产犊次数以及活体重。本研究选取受试奶牛的基本标准为：空怀天数少于60天，且所选个体处于泌乳高峰期。试验初期，仅饲喂穆拉托草的受试奶牛的产奶量被连续监测30天，以建立其产奶记录与生产历史档案。在30天产奶量监测结束后，33头受试奶牛被随机分为3组，每组11头，分别饲喂指定牧草：马阿尔法尔法草饲喂组（G1）、喀麦隆象草饲喂组（G2）以及穆拉托草饲喂对照组（G3）。三组受试奶牛均在相同环境下接受一致的饲养管理，采用自由采食模式，唯一变量为饲喂的牧草种类；本研究对每头奶牛的日产奶量进行了连续6周的记录。采用单因素方差分析（1-Factor Anova）对各组受试奶牛的产奶量进行比较后发现，自试验第2周起，三组间的产奶量均存在极显著统计学差异（p < 0.01），其中G1组与G3组的差异最为显著。试验结果显示，马阿尔法尔法草的产奶生产效率最高，饲喂该牧草的组别产奶量增幅最大；但对比每升牛奶的生产成本后发现，马阿尔法尔法草饲喂组的成本最高，穆拉托草组最低，因此成本收益比排序依次为穆拉托草组最优，其次为喀麦隆象草组，最后为马阿尔法尔法草组。