The Effect of Various Methods for Drying up Cows on the Bacterial and Cell Content of Milk

Wayne, Ralph W.; Macy, H.

doi:10.3168/jds.s0022-0302(33)93318-4

Cited by 13 publications

(8 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Multiple studies have been conducted to investigate what the best method to dry cows off is, often in regard to mammary health, but many of these studies were done when milk production per cow was substantially lower than what is seen in most dairies today Neave et al, 1950;Oliver et al, 1956a). Abrupt and gradual milk cessation were 2 commonly investigated approaches to discontinue milking (Wayne and Macy, 1933;Espe and Smith, 1952;Oliver et al, 1956b). Abrupt cessation, or stop milking, occurs when normal daily milking is terminated on a set day, which is typically determined by the expected calving date and a desired dry period length.…”

Section: Introductionmentioning

confidence: 99%

Effect of gradual or abrupt cessation of milking at dry off on milk yield and somatic cell score in the subsequent lactation

Gott

Rajala‐Schultz

Schuenemann

et al. 2017

Journal of Dairy Science

View full text Add to dashboard Cite

The objective of this study was to assess the effect of milk cessation method (abrupt or gradual) at dry off on milk yield and somatic cell score (SCS) up to 120 d in milk during the subsequent lactation. Data from 428 cows from 8 dairy herds in Ohio were analyzed. Abrupt cessation cows kept the farm's regular milking schedule (2 or 3 times) through dry off and gradual cessation cows were milked once daily for the final week of lactation. Milk yield and SCS were collected using Dairy Herd Improvement Association test-day records. Aseptic quarter milk samples were collected approximately 1 wk before dry off, at dry off, and within 1 wk after calving for bacterial culture to determine the presence of intramammary infections. Overall, milk cessation method was not significantly associated with either milk yield or SCS in early lactation; however, interaction between the milk cessation method and herd was highly significant. Cows producing greater amounts of milk around dry off had significantly higher SCS in the following lactation. Shorter dry periods were significantly associated with decreased milk yield in the following lactation, especially among abruptly dried off cows. Additionally, as expected, several other factors, such as parity of cows and stage of lactation, were significantly associated with both outcomes. No interactions between the milk cessation method and the other explanatory variables in the final models were significant. The results of the current study suggest that higher milk yield at dry off was associated with higher SCS in the following lactation, even though milk cessation method at the end of lactation had a varying effect on test-day milk yield and SCS in different herds during the first 120 d in milk in the following lactation. The specific herd characteristics influencing this could not be identified within this study, warranting further research.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of gradual or abrupt cessation of milking at dry off on milk yield and somatic cell score in the subsequent lactation

Gott

Rajala‐Schultz

Schuenemann

et al. 2017

Journal of Dairy Science

View full text Add to dashboard Cite

show abstract

“…However they reported that the bacterial count of milk drawn aseptically from an apparently normal udder was in some cases in excess of 50, OOO/ml. An average bacterial count of 659/ml in milk from normal udder was reported by Wayne and Macy (212) and 964/ml by Breed (29). Frequently, the milk from infected udders is accompanied by high bacterial counts but Morgan et al (149) found no correlation between infected udders and high bacterial counts in milk as it was drawn from the udder.…”

Section: Microflora Of Raw Milkmentioning

confidence: 85%

“…The various feeds reported to be responsible for this defect included alfalfa (14,173,214), cabbage (15),beet pulp and citrus pulp (195), corn silage (66), soybeans (68), or various weeds like bitter week (143,212) May weed (68), pepper grass (166), wild onion and garlic (16,139,203).…”

Section: Off-flavors From Feedmentioning

confidence: 99%

See 1 more Smart Citation

The Quality of Raw Milk From Selected Ohio Markets.

Ohri

Slatter

1966

Journal of Milk and Food Technology

View full text Add to dashboard Cite

Summary An 8-month survey was made on the flavor of raw milk supplies from four major Ohio markets. A total of 317 milk samples obtained from farm bulk tanks and from tank trucks were examined fresh and after storage at 38–40 F for 48 hours. Approximately 40% of the industrial producer's fresh milk supply had highly satisfactory flavor quality and the flavor of 10% of the shipments was completely undesirable. The combining of the producers' milk in the tank pick-up truck resulted in milk for the plants having a flavor that was neither very good nor very bad. The most common flavor defect was “feed” but other flavors frequently encountered were “cowy” and “rancid.” A significant flavor deterioration occurred in the raw milk during its storage for 48 hr at 38–40 F. The principal changes involved the development of such flavors as “rancid,” “unclean” and acid-associated flavors such as “malty.” The rancid flavor was a common defect in the milk after storage during the winter season, and unclean, musty, oily and the acid-associated flavors were frequently found in the milk after storage during the summer season. The results suggest the need for more adequate milk flavor control measures and that milk should be processed as soon as possible after reaching the plant if it is to possess the finest possible flavor.

show abstract

“…Novas infecções da glândula mamária podem ocorrer durante o período seco com incidência variando entre 6% e 45,7% (BROWNING et al, 1994;MCDONALD, 1982;NATZKE et al, 1975;NEAVE et al, 1950;, sendo que, as vacas em que as amostras de leite das quatro glândulas do úbere apresentavam-se livres de microorganismos no momento de interrupção da ordenha, apresentariam menores chances de se infectarem durante a secagem (NEAVE et al, 1950;RINDSIG et al, 1978). Neave et al (1950) (MCDONALD, 1982;NATZKE et al, 1975;PRIETO, 1993;WAYNE;MACY, 1933).…”

Section: Revisão De Literatura -34unclassified

Processo de secagem da glândula mamária de bovinos da raça holandesa: avaliação física da involução da mama e das características físico-químicas, celulares e microbiológicas da secreção láctea durante o período seco

Birgel¹

View full text Add to dashboard Cite

Dedico este trabalho Ao meu querido Eduardo, companheiro de todos os momentos. O amor e o equilíbrio do nosso lar foi fundamental para manter a tranqüilidade necessária para o término desta dissertação. Obrigada por todo carinho, cumplicidade e a imensa dedicação dispensada para esta dissertação À minha querida Beatriz. A emoção de ouvir a palavra mamãe e o som da sua risadinha tornou esta empreitada leve e alegre. Espero que um dia você compreenda a necessidade de tantas e tantas horas na frente do computador Aos meus pais, Vera e Jayme, exemplo de trabalho e dedicação. Obrigada pelo apoio, pelo amor e por me possibilitarem uma ótima formação educacional, pois sem ela não teria conseguido alcançar mais esta etapa profissional. Aos meus irmãos Júlio César e Thales. obrigada por todo carinho, pelas risadas, pelas briguinhas ... Aos meus queridos avós Clara Eufride, José Becker e Paschoalina meu eterno agradecimento por tudo que vocês significam na minha vida Aos meus sogros, Alice e Eduardo, exemplo de união, amor e companheirismo. Obrigada por todo carinho e a total disposição em sempre ajudar. Às minhas cunhadas-irmãzinhas, Cynthia e Heloísa, e ao meu cunhado Marcos obrigada pela amizade e por todo carinho. Aos meus queridos sobrinhos Antônio Augusto e Maria Gabriela obrigada por todos os momentos adoráveis que dividimos quando estamos juntos Às queridas crianças Letícia, Emilie e Leonardo voçês vieram para encher a família de alegria. Aos meus queridos tios, primos e amigos "O que somos é um presente que a vida nos dá. O que nós seremos é um presente que daremos à vida." Herbert de Souza .

show abstract

The Effect of Various Methods for Drying up Cows on the Bacterial and Cell Content of Milk

Cited by 13 publications

References 4 publications

Effect of gradual or abrupt cessation of milking at dry off on milk yield and somatic cell score in the subsequent lactation

Effect of gradual or abrupt cessation of milking at dry off on milk yield and somatic cell score in the subsequent lactation

The Quality of Raw Milk From Selected Ohio Markets.

Processo de secagem da glândula mamária de bovinos da raça holandesa: avaliação física da involução da mama e das características físico-químicas, celulares e microbiológicas da secreção láctea durante o período seco

Contact Info

Product

Resources

About