Comparaison d'un lactoduc en ligne haute et en ligne basse. Incidence sur la traite des brebis de races Lacaune et Manech

Du, Juan; Chevalerie, F. A. de la; Combaud, J.F.; Lambion, P.

doi:10.1051/animres:19830104

Cited by 7 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In contrast, in dairy cows the high line has occasionally been associated with a higher somatic cell count (SCC) in bulk milk (Czediwoda, 1991; Garces et al 2006) or a greater likelihood of impact presence during low milk flow (Thompson & Pearson, 1979). Moreover, in ewes Le Du (1983) and Díaz et al (2004) found no effect of milking pipeline height (LL v . ML) on milk production and composition or teatcup fall-off.…”

mentioning

confidence: 95%

“…However, when the milkline is above the animal standing level (mid-level if height is between 0 and 1·25 m; high-level if height greater than 1·25 m; ISO 3918: 2007) the milk goes up the long milk tube, forming torrents that take up the entire pipe section, causing a decrease in average teat end vacuum (Le Du, 1983) and an increase in vacuum fluctuations (Osteras & Lund, 1980; Díaz et al 2004). These effects become more pronounced as the milk flow increases (Le Du, 1977; Ambord & Bruckmaier, 2010), the higher the milkline height (O'Shea, 1987) and the lower the air intake in the claw (Murgia & Pazzona, 1999).…”

mentioning

confidence: 99%

“…In ewes it has not been demonstrated that ML milking adversely affects udder health (Le Du, 1983; Díaz et al 2004). In contrast, in dairy cows the high line has occasionally been associated with a higher somatic cell count (SCC) in bulk milk (Czediwoda, 1991; Garces et al 2006) or a greater likelihood of impact presence during low milk flow (Thompson & Pearson, 1979).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Effect of mid-line or low-line milking systems on milking characteristics in goats

Manzur

Díaz

Mehdid

et al. 2012

Journal of Dairy Research

View full text Add to dashboard Cite

Two experiments were carried out to compare mechanical milking in mid-level (ML) and low-level (LL) milkline in goats. The first trial used 40 intramammary infection (IMI)-free goats that had been milked in ML during a pre-experimental period of 4±1 weeks post partum. These animals were divided into two groups (n=20), randomly assigning each group to ML or LL milking for a 17-week experimental period. During this period, several strategies were applied to increase teat exposure to pathogens in both experimental groups. The IMI rate was the same in both experimental groups (30% of goats), although the majority of new infections appeared earlier in ML (weeks 1-5) than in LL (weeks 7-16). Teat-end vacuum range (maximum minus minimum vacuum) was higher in ML than in LL, but no significant differences were found in the remaining variables [milk production and composition, somatic cell count (SCC), frequency of liner slips+teatcups fall off]. In the second experiment, in a crossover design (54 goats in fourth month of lactation; 2 treatments, ML and LL, in 2 experimental periods each lasting 1 week) it was observed that both the milk fractioning (reduced machine milk and increased machine stripping) and average machine milk flow worsened slightly in ML milking; in contrast, no differences were observed in total milking time or teat thickness changes after milking. It was concluded that the differences found between ML and LL are not sufficiently important to discourage breeders from using ML in goat milking.

show abstract

mentioning

confidence: 95%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Effect of mid-line or low-line milking systems on milking characteristics in goats

Manzur

Díaz

Mehdid

et al. 2012

Journal of Dairy Research

View full text Add to dashboard Cite

show abstract

“…les mamelles étant plus congestionnées le matin, nous avons observé que l'égouttage, plus difficile à effectuer, est légèrement prolongé ; -nous confirmons qu'une augmentation de la consistance du pis conduit à des chutes plus fréquentes (LE Du, 1983). A la limite du seuil de signification (à P < 0,05), l'accroissement de 43 p. 100 de leur fréquence peut contribuer le matin à désorganiser le travail et à diminuer la cadence de traite.…”

Section: Résultats Et Discussionunclassified

“…Dans d'autres conditions d'exploitation, en race Lacaune, des fréquences moyennes très supérieures sont couramment observées : 5 à 32 p. 100 (LE Du, 1977), 11 à 18 p. 100 (LE Du, 1983), 15 p. 100 (Lnsussr E e>J, 1984). L'effet race est important : 4 à 5 p. 100 en Manech contre 11 à 18 p. 100 en Lacaune (LE Du, 1983), 0,3 p. 100 en Karagouniko, 3 p. 100 en Tsigay contre 29 p. 100 en Stara Zagora (L ABUSSIERE , 1984), 28 p. 100 avec des races d'Europe de l'Est (M AZAC , K OPAL & C ERNY , 1967) alors qu'avec le même matériel (!J, la fréquence était de 9 p. 100 en Préalpes du Sud (LE Du et al, 1978). Une telle variabilité de la fréquence des chutes affecte inévitablement le travail du trayeur.…”

Section: Résultats Et Discussionunclassified

Productivités horaires du trayeur dans deux installations de traite de petites dimensions pour brebis laitières

Du¹,

Combaud²,

Lambion³

et al. 1986

Ann. Zootech.

Self Cite

View full text Add to dashboard Cite

Relationship of goat milk flow emission variables with milking routine, milking parameters, milking machine characteristics and goat physiology

Romero

Panzalis

Ruegg

2017

Animal

View full text Add to dashboard Cite

The aim of this paper was to study the relationship between milk flow emission variables recorded during milking of dairy goats with variables related to milking routine, goat physiology, milking parameters and milking machine characteristics, to determine the variables affecting milking performance and help the goat industry pinpoint farm and milking practices that improve milking performance. In total, 19 farms were visited once during the evening milking. Milking parameters (vacuum level (VL), pulsation ratio and pulsation rate, vacuum drop), milk emission flow variables (milking time, milk yield, maximum milk flow (MMF), average milk flow (AVMF), time until 500 g/min milk flow is established (TS500)), doe characteristics of 8 to 10 goats/farm (breed, days in milk and parity), milking practices (overmilking, overstripping, pre-lag time) and milking machine characteristics (line height, presence of claw) were recorded on every farm. The relationships between recorded variables and farm were analysed by a one-way ANOVA analysis. The relationships of milk yield, MMF, milking time and TS500 with goat physiology, milking routine, milking parameters and milking machine design were analysed using a linear mixed model, considering the farm as the random effect. Farm was significant (P<0.05) in all the studied variables. Milk emission flow variables were similar to those recommended in scientific studies. Milking parameters were adequate in most of the farms, being similar to those recommended in scientific studies. Few milking parameters and milking machine characteristics affected the tested variables: average vacuum level only showed tendency on MMF, and milk pipeline height on TS500. Milk yield (MY) was mainly affected by parity, as the interaction of days in milk with parity was also significant. Milking time was mainly affected by milk yield and breed. Also significant were parity, the interaction of days in milk with parity and overstripping, whereas overmilking showed a slight tendency. We concluded that most of the studied variables were mainly related to goat physiology characteristics, as the effects of milking parameters and milking machine characteristics were scarce.

show abstract

Comparaison d'un lactoduc en ligne haute et en ligne basse. Incidence sur la traite des brebis de races Lacaune et Manech

Cited by 7 publications

References 1 publication

Effect of mid-line or low-line milking systems on milking characteristics in goats

Effect of mid-line or low-line milking systems on milking characteristics in goats

Productivités horaires du trayeur dans deux installations de traite de petites dimensions pour brebis laitières

Relationship of goat milk flow emission variables with milking routine, milking parameters, milking machine characteristics and goat physiology

Contact Info

Product

Resources

About