Influência da fase de lactação e do intervalo entre as ordenhas sobre a composição e produção de leite de cabras no semiárido

Silva, Elisângela Maria Nunes da; Silva, Gustavo de Assis; Souza, Bonifácio Benício de; Alcântara, Maria Dalva Bezerra de; Carvalho, Maria das Graças Xavier de

doi:10.4322/rbcv.2019.018

Cited by 2 publications

(3 citation statements)

References 8 publications

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“…The milk production values of 1.081, 0.228 and 0.005 encountered for parameters a, b and c, respectively, are within the range described by Siqueira et al (2017) for the Saanen and Alpine chamois breeds, with minimum and maximum values of 0.30 and 4.49 for parameter a; 0.00 and 0.97 for b; and 0.00 and 0.05 for c.…”

Section: Resultssupporting

confidence: 62%

“…Based on the production values at the peak of lactation, we have a practical indication for the separation of seropositive animals. This is because the period from the first third of lactation to the peak of production was marked by a negative energy balance, with rising production and a gradual restoration of the dry matter intake capacity (Silva, Assis Silva, Alcântara, & Carvalho, 2019). With the metabolic challenge in the first third of lactation, the seronegative goats managed to maintain greater production at peak lactation in comparison to the seropositive animals.…”

Section: Resultsmentioning

confidence: 99%

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Influence of caprine arthritis encephalitis on milk production and quality along the lactation curve in primiparous dairy goats

Araujo

Schultz

Lima

et al. 2021

Semina: Ciênc. Agrár.

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The aim of this study was to examine the influence of caprine arthritis encephalitis (CAE) on the production of milk and its components (protein, fat and total solids) along the lactation curve of primiparous goats. The study was developed using a database from the years 2014 to 2018. Sixty-one animals were subjected to the serological test for CAE, whose result indicated that 42 were seropositive and 19 seronegative, and milk production and quality data were compiled. To adjust the curve for production of milk, fat, protein and total solids during lactation, the following nonlinear model developed by Wood (1967) was used: Y = atb e-ct, where Y represents the observations of milk, fat, protein or total solid production at time t; a is the parameter associated with the initial production; b is the parameter associated with the rate of rise in production until the peak; c is the parameter associated with the rate of decline of the lactation curve; and is the representative time of the day in milk. The parameters were compared by the confidence interval considering 95% probability. Peak production was calculated using the following formula: a(b/c)b e-b. There was no statistical difference (p > 0.05) between seropositive and seronegative primiparous goats for initial production and the rates of rise and decline of the parameters of milk, fat, protein and total solid production. However, at their peak, these variables were 26, 27, 23 and 23% higher, respectively, in the seronegative goats than in their seropositive counterparts. In conclusion, CAE does not affect milk production or the production of fat, protein and total solids along the lactation curve, but seropositive goats produce less milk and respective components at the peak of the lactation curve than seronegative goats.

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Section: Resultssupporting

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Influence of caprine arthritis encephalitis on milk production and quality along the lactation curve in primiparous dairy goats

Araujo

Schultz

Lima

et al. 2021

Semina: Ciênc. Agrár.

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“…Fonte: Dados da Pesquisa. Silva et al (2005) afirma que a CCS devem ser interpretadas com cautela, levando sempre em consideração o estágio de lactação dos animais. Dito isso Gomes et al (2004) verificou que a CCS aumenta com o avançar da lactação.…”

Section: Resultsunclassified

Avaliação da qualidade do leite de cabra na Fazenda Padre Cícero no Município de Monteiro - PB.

Santos¹

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O leite de cabra é uma matéria prima rica em gordura e vitaminas, o qual possui um potencial gigantesco para a produção de derivados lácteos, a Paraíba detém um total de 546.026 caprinos leiteiros, com uma produção média anual de 5.627,000 litros de leite correspondente a 22% da produção total do país. Por esse motivo o objetivo desse trabalho foi avaliar a qualidade do leite de cabra na fazenda Padre Cícero no município de Monteiro-PB. O trabalho foi realizado na fazenda Padre Cícero, sendo iniciado em outubro de 2018 e encerrado em março de 2020, as análises físico-químicas foram realizadas no laboratório de tecnologia de alimentos, no Centro de Desenvolvimento Sustentável do Semiárido, através do Analisador de Leite Ultrassônico Complete – AKSO, para os parâmetros de composição do leite: gordura (%), sólidos não gordurosos SNG (%), sólidos totais ST (%), proteína (%), lactose (%), minerais (%), densidade, a contagem de Células Somáticas foi realizada no aparelho LACTOSCAN Somatic Cells Counter. Todos os parâmetros analisados estavam de acordo com a Instrução Normativa de n° 37. A contagem de células somáticas obteve valores abaixo de 1.000.000, chegando em algumas médias mensais a valores acima de 2.000.000 células/mL. Ao final desse trabalho foi possível concluir que o leite de cabra analisado está em ótimas condições para a produção de derivados lácteos e o próprio consumo in natura.

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Influência da fase de lactação e do intervalo entre as ordenhas sobre a composição e produção de leite de cabras no semiárido

Abstract: Influência da fase de lactação e do intervalo entre as ordenhas sobre a composição e produção de leite de cabras no semiárido* Influence of lactation and the interval between milkings on the composition and production of milk goats in the semiarid

Cited by 2 publications

References 8 publications

Influence of caprine arthritis encephalitis on milk production and quality along the lactation curve in primiparous dairy goats

Influence of caprine arthritis encephalitis on milk production and quality along the lactation curve in primiparous dairy goats

Avaliação da qualidade do leite de cabra na Fazenda Padre Cícero no Município de Monteiro - PB.

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