Influência da condição corporal ao parto no balanço energético e desempenho reprodutivo de cabras leiteiras no pós-parto

Lima

et al. 2020

Semina: Ciênc. Agrár.

This study aimed to evaluate the production parameters of herds in 100 dairy family farms in the mesoregion of the Acre Valley, in Western Amazon, Brazil. To this end, the farms were divided into two levels of milk production. Data were collected from March to June 2016, using a 248-question semi-structured form and on-site observations. The information was recorded in SPSS® spreadsheets. Dairy farmers were divided into two clusters known as "high production cluster" (1,755.65 L ha-1 yr-1) and "low production cluster" (492.75 L ha-1 yr-1), using the K-means non-hierarchical method. Descriptive statistics was used and, with the aid of the multivariate cluster analysis, cattle ranchers were divided into the two clusters (high and low production). The results showed that the high-production cluster had larger total milk production (L milk cow-1 day-1) and family income within smaller areas and using less workforce. The farmers in this group also used more ear tags for cattle identification and more technologies such as electric fence and artificial insemination at a fixed time. We concluded that family farms should improve their management and receive technical assistance to strengthen their weaknesses in dairy-cow health and reproduction systems. Moreover, milk yield in these dairy farms should be improved to increase profitability of farmers.

Section: Resultsmentioning

confidence: 99%

Dairy herd production aspects of family farms in Western Amazon, Brazil

Lima

et al. 2020

Semina: Ciênc. Agrár.

“…Additionally, the recovery period is longer and there is a significant delay in the appearance of the first post-calving heat (BERGAMASCHI et al, 2012). The body score is a determinant factor for a shorter recovery time of the endometrium and faster heat manifestation, promoting a decrease in the calving interval (BARBOSA et al, 2016) and thus increasing the productivity.…”

Section: Third Weakness: Inadequate (Lean) Body Condition Of Cows At Calvingmentioning

confidence: 99%

Applicability of management tools to the correction of weaknesses in family dairy farms in the Western Amazon

Demeu

et al. 2019

SCA

The aim of this study was to analyse the applicability of management tools associated with technical assistance to family dairy farms with the aim of identifying and correcting weaknesses. A total of 100 dairy farms located in the mesoregion of the Acre Valley, in the Western Amazon, were analysed from March 2016 to March 2017. The data used were collected via a semi-structured form containing 549 questions, through on-site observation and from the owners during the diagnosis. To define the weaknesses, a multidisciplinary team used the brainstorming management tool. The main weaknesses obtained using the GUT Matrix, in descending order, were: a lack of drinking fountains, no vaccination of all heifers against brucellosis, low body condition of cows at calving, and a calving interval longer than 12 months. Based on the ranking of the weaknesses, the research team defined the management tools to be used to correct or at least mitigate the weaknesses: PDCA, 5W2H, and/or a fishbone diagram. Among the 20 most graded weaknesses, the management tools used by the extensionist technician obtained significant results in solving the problems. It was concluded that it is possible to adapt and apply the management tools used in other activities to dairy farming and that they can be used continuously for management or specifically to establish a plan or project.

“…The loss of body weight in this period, and the establishment of a negative energy balance may have a negative influence on the return to estrus and ovarian activity in cattle (MBAYAHAGA et al, 1998). Body score is a determining factor for a shorter recovery time of the endometrium and a faster return to estrus, promoting shorter calving intervals (BARBOSA et al, 2016) and, thus, increasing productivity.…”

Section: The Use Of Electrified Fencing Occurred In 46%mentioning

confidence: 99%

Caracterização de propriedades leiteiras de agricultura familiar na amazônia ocidental

Demeu

et al. 2018

SCA

More than half of the milk in Brazil comes from family-owned dairy farms, which account for 84.4% of all dairy farms. Despite this, little is known about family-owned dairy farms, especially those in the western Amazon. As such, the objective of this study was to analyze and characterize the production, sanitary conditions, reproductive rates, and milk quantities produced on 100 family dairy farms in Vale do Acre, in the western Amazon. The data were collected from March to June 2016, using a semi-structured questionnaire containing 549 questions. The answers given by producers, as well as local observations were registered in SPSS® spreadsheets, and descriptive statistics were used to summarize the data. Results indicated low rates of productivity, low total milk production, and low quantities of milk/cow/day. The data also revealed sanitary and productive problems such as inadequate herd composition, lack of grouping of lactating cows, and short duration of lactation. In addition, not all heifers were immunized against brucellosis, and there was often an absence of water troughs. We concluded that it is necessary to improve the management of family-owned farms, and take technical assistance measures to correct weak points in dairy cow health and reproduction. Moreover, it is essential to improve productivity to raise the profitability of rural dairy farms.