Effects of Milking Frequency and Selection for Milk Yield on Productive Efficiency of Holstein Cows

Barnes, Michael C.; Pearson, R.E.; Lukes-Wilson, A.J.

doi:10.3168/jds.s0022-0302(90)78831-5

Cited by 58 publications

(56 citation statements)

References 15 publications

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“…This result corroborates the findings of Bar-Peled et al (1995) that increased dry matter intake by cows milked 6x daily did not compensate for the increased energy demands, thus these cows lost BW, had a lower body condition scores during the initial lactation period and displayed a longer recovery period than did cows milked 3x daily. Barnes et al (1990) also reported that cows milked 3x daily did tend (p<0.1) to be lighter than their counterparts milked 2x daily during lactation. They observed further, that dry matter intake increased by approximately 15% and cows on 2x and 3x daily milking consumed 10 and 11% more dry matter than controls during lactation respectively.…”

Section: Discussionmentioning

confidence: 87%

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Effects of milking frequency on milk yield, dry matter intake and efficiency of feed utilization in WAD goats

Osinowo

Smith

et al. 2012

Arch. zootec.

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SUMMARYEffects of milking frequency on milk yield, dry matter intake (DMI) and effeciency of feed utilization for milk production was investigated in West African Dwarf (WAD) goats at Abeokuta in the humid zone of South Western Nigeria. Seventeen WAD goats were fed a ration comprising (on dry matter basis) 50% grass (Pennisetum purpureum) and 50% concentrate (17% crude protein) at 5% body weight. The study involved hand milking once (at 6.00 am), twice (at 6.00am and 6.00pm) and thrice (at 6.00 am, 2.00 pm and 10.00 pm) daily for 21 and 35 days covering two periods, from JuneOctober 2004 (Trial I) and April-July 2005 (Trial II) in a randomised complete block design. Kids were separated from their dams at day 14 and artificially reared. Compared to twice (2x) daily milking (322.2 mL/day), the milk yield for once (1x) daily milking (181.5 mL/day) was significantly (p<0.001) lowered by 43.7%. Milk yield for thrice (3x) daily milking (334.8 mL/day) was however, higher by 3.8% compared to 2x. Twice and thrice daily milking were not significantly different (p>0.05). As lactation progressed, day of lactation significantly (p<0.001) affected milk yield and declined by 2.5 mL for each additional day of lactation. Dry matter intake (DMI) significantly (p<0.05) increased with milking frequency. The DMI was 6.7% higher in trial I compared to trial II. Day of lactation had significant effect (p<0.001) on DMI increasing by 3.73 g for each additional day of lactation. The DMI for 2x and 3x daily milkings were however not different (p>0.05). Milking frequency had significant effect (p<0.001) on efficiency of feed utilization for milk production. The findings of this study indicate that milk yield and DMI increase with milking frequency. Therefore, it is concluded that twice daily milking of WAD goats optimises milk yield. RESUMENEn Abeokuta, en la zona húmeda de Nigeria, se estudiaron los efectos de la frecuencia de ordeño sobre la producción de leche, la ingestión de materia seca (DMI) y eficiencia de la utilización del alimento en cabras Enanas de Africa Occidental (WAD). Diecisiete cabras WAD fueron alimentadas con una ración compuesta (sobre materia seca) de 50% de gramíneas (Pennisetum purpureum) y 50% de concentrado (17% de proteína bruta) en la proporción de 5% del peso corporal. Se realizaron uno (a las 6:00 am), dos (a las 6:00 am y 6:00 pm) y tres (a las 6:00 am, 2:00 pm y 10:00 pm) ordeños diarios durante 21 y 35 días en dos periodos de junio a octubre de 2004 (ensayo I) y de abril a julio de 2005 (ensayo II) en un diseño de bloques completamente al azar. Los chivos fueron separados de sus madres el día 14Archivos de zootecnia vol. 61, núm. 235, p. 458. WILLIAMS, OSINOWO, SMITH, JAMES, IKEOBI, ONAGBESAN, SHITTU AND SOLOLA y alimentados con lactancia artificial. Comparado con los dos ordeños (2x) diarios (322,2 mL/día), el rendimiento de un solo (1x) ordeño (181,5 mL/ día) fue significtivamente (p<0,001) menor en un 43%. El rendimiento lácteo para tres (3x) ordeños diarios (334,8 mL/día) fue sin embargo sólo el 3,8...

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Section: Discussionmentioning

confidence: 87%

“…This result agrees with that by Bar-Peled et al (1995) who reported that cows milked 6x daily consumed more dry matter than did cows milked 3x daily. Similarly, Barnes et al (1990) and Royle et al (1992) stated that a measurable increase in dry matter intake in cows accompanied the rise in milk production from higher milking frequencies.…”

Section: Discussionmentioning

confidence: 95%

Effects of milking frequency on milk yield, dry matter intake and efficiency of feed utilization in WAD goats

Osinowo

Smith

et al. 2012

Arch. zootec.

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“…This effect is more marked in high-producing dairy cows (+9.2% in cows with daily production levels of 26 to 34 kg, compared to +23.8% in cows with > 34 kg, [91]). Furthermore, this effect is in relation to lactation number: some studies indicate that primiparous cows benefit the most from more frequent milkings (19.4, 13.5, 11.7, and 13.4% increase in milk production for cows in their first through fourth lactation, respectively, [2,6]), whereas one report concludes that the effect is more beneficial in multiparous cows (+15 vs. +6% increase, for multiparous and primiparous cows, respectively, [21]). Increased milk production associated with more frequent milkings appears to be more important for animals at the end of lactation [77] than at the beginning [76] (+16 to 90% vs. +7 to 12% increase at the end or beginning of lactation, respectively).…”

Section: Effect Of Interval Between Milkingsmentioning

confidence: 99%

“…The effect of three-daily milkings has been shown to either have no significant effect on milk composition [3,21] or a slight yet significant reduction in milk fat concentration (-0.15 percentage units) compared to twice-daily milkings [6], with the reduction being more important for primiparous, compared to second parity dairy cows (-0.32 vs. -0.23 percentage units, respectively, [91]). Conversely, there is at least one report that the reduction in the percentage of milk fat in three-daily milked dairy cows is lower for multiparous than primiparous animals (-0.10 vs. -0.06 percentage units, respectively [2]).…”

Section: Effect Of Interval Between Milkingsmentioning

confidence: 99%

Oxytocin and milk removal: two important sources of variation in milk production and milk quality during and between milkings

Lollivier¹,

Guinard-Flament²,

Ollivier-Bousquet³

et al. 2002

Reprod. Nutr. Dev.

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-This review describes the effects of milking (routine and management) on milk yield and milk quality on dairy ruminants and examines the physiological effects of milking on the synthesis and secretion of milk. During milking, differences in the composition of milk as a result of milk ejection reflex are observed: the cisternal milk, immediately available, contains little fat, then milk ejection provokes active transport of high-fat content alveolar milk, into the cisternal compartment. Milking frequency has the capacity to affect milk production too. So, an increase in milking frequency augments milk yield whereas a decrease in milking frequency decreases milk production, with effects on milk composition. The milk ejection reflex is mediated by oxytocin, which induces myoepithelial cell contraction. Nevertheless, other actions of oxytocin may exist, such as a direct effect on proliferation and differentiation of myoepithelial cells and on secretory processes in the mammary epithelial cells. milking / milk ejection / oxytocin / physiological effects / milk quantity and quality Résumé -Ocytocine et vidange mammaire : deux facteurs de variation essentiels de la quantité et la qualité du lait pendant la traite et entre les traites. Cette revue bibliographique pré-sente les effets de la traite (technique et conduite) sur la production quantitative et qualitative de lait, puis précise les mécanismes d'action des effets physiologiques de la traite sur la synthèse et la sécrétion des composants du lait. Au cours d'une traite, la composition du lait évolue, grâce au réflexe d'éjection du lait qui provoque le transfert du lait alvéolaire, riche en matières grasses, vers la citerne. Ainsi, le lait de début de traite est pauvre en matière grasse, tandis que le lait de fin de traite est riche en matière grasse. Les rythmes de traite ont aussi un impact sur la production laitière. Ainsi, l'accroissement de la fréquence de traite augmente la production laitière alors que la réduction du nombre de traite la diminue, avec des répercussions en terme de qualité du lait. L'hormone responsable de l'éjection du lait, l'ocytocine, exerce son rôle de vidange mammaire par déclenchement de la Reprod. Nutr. Dev. 42 (2002) 173-186 173

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“…Generally the increase of milk production is associated with a decrease of the milk constituents (HENDERSON and PEAKER 1987), however, total milk fat level in F group was significantly higher. It is also possible that free and frequent suckling (or milking) treatment during day could stimulate local synthesis of the milk fat within the mammary gland (BARNES et al 1990).…”

Section: Resultsmentioning

confidence: 99%

Effect of restricted suckling time on milk components and sucking behavior of lambs

Çimen

Karaalp

2009

Arch. Anim. Breed.

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The experiment was conducted to investigate the effects of different suckling systems in non-dairy sheep on the production and components of milk, sucking behavior and lamb growth from day 4 after lambing until the lambs were 4 weeks old. The sixteen ewes with their lambs were used to compare restricted suckling time (R) and free suckling time (F) methods. The F lambs were maintained with mothers and suckled ad libitum during day. The R lambs were removed from their dams and allowed to suckle their dams for 15 min during morning and afternoon period. After two weeks of age, all lambs were encouraged to consume roughage alfa alfa as ad libitum to stimulate their ruminal activity. Daily milk intakes of R lambs were low, while F lambs consumed more milk in 1st and 3rd weeks. Therefore, F lambs gained more weight in these weeks. The R lambs have been shown to result in lower sucking duration and higher frequency as compared to F lambs until 4th week. There were no significant differences between treatments in change of milk protein during study. However, the milk fat concentrations were higher in the F group than in R group until 4th week

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Effects of Milking Frequency and Selection for Milk Yield on Productive Efficiency of Holstein Cows

Cited by 58 publications

References 15 publications

Effects of milking frequency on milk yield, dry matter intake and efficiency of feed utilization in WAD goats

Effects of milking frequency on milk yield, dry matter intake and efficiency of feed utilization in WAD goats

Oxytocin and milk removal: two important sources of variation in milk production and milk quality during and between milkings

Effect of restricted suckling time on milk components and sucking behavior of lambs

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