Mesure De La Production Laitière Des Brebis Pendant La Période d'ALLAITEMENT

Ricordeau, G.; Boccard, R.; Denamur, R

doi:10.1051/animres:19600201

Cited by 37 publications

(19 citation statements)

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“…Daily milk production was determined using oxytocin (3 IU) as in the method described by Ricordeau et al [34]. At each occasion of milk production recording (hand milking), samples of 20 mL of milk were also taken and immediately sent to the laboratory for analysis of fat and protein contents using an integrated milk testing machine (Combifoss 5300, Foss Electric, Denmark).…”

Section: Milk Productionmentioning

confidence: 99%

The effect of constant dietary energy supply during late gestation and early lactation on performances of prolific D’man ewes

Mahouachi¹,

Rekik²,

Lassoued

et al. 2004

Anim. Res.

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-A total of 42 prolific D'man ewes were used to study the effect of the dietary energy supply on their performances during the last 45 days of pregnancy and the first 60 days of the suckling phase. The ewes were fed 1 kg of hay and supplemented with either 200 (treatment L), 570 (treatment M) or 840 g (treatment H) of a barley and soyabean-based concentrate. The proportion of soyabean was adjusted so that the crude protein (CP) content of the three diets was similar (120 g CP·kg -1 ). The energy contents of the diets were 1.2, 1.8 and 2.2 of the daily net energy requirements for maintenance in respectively the L, M and H treatments. Daily hay intake averaged 829 ± 18 g dry matter (DM) per ewe and was not affected by the level of the concentrate distributed. The body condition score of the ewes in all treatment groups was low at the beginning of the experiment (1.9 ± 0.3) and continued to decline throughout the period of treatment application. Nevertheless, the rate of decline was higher for the L and M ewes (P < 0.05). The live weight of the ewes after lambing was higher (P < 0.05) for ewes in the H treatment group (43.2 ± 6.9 kg) in comparison to the other ones (37.7 ± 7.8 and 40.0 ± 7.3 kg for the L and M groups respectively). Daily milk production over the first 40 days of lactation (959 ± 399 g·day -1 ) was not affected by the energy level of the diet. Similarly, fat (8.9 ± 2.4%) and protein (4.5 ± 0.9%) contents of the milk were not affected by the diet energy content. The weights of the lambs at birth, at 10, 30 and 50 days of age were not influenced by the diet energy content. In contrast, average daily growth (ADG) between 10 and 30 (ADG10-30) and also between 30 and 50 days of age (ADG30-50) were significantly affected by energy allowances in the diet (95 ± 23, 133 ± 25, and 152 ± 27 g·day -1 for ADG10-30 and 76 ± 22, 135 ± 24 and 136 ± 24 g·day -1 for ADG30-50 in L, M and H groups respectively). It is concluded that the energy requirements of prolific D'man ewes during late gestation and early lactation are likely to be higher than the levels attempted in this study. ont été utilisées pour étudier les effets du niveau énergétique de la ration sur leurs performances de production pendant 45 j en fin de gestation et 60 j après la mise-bas. Les brebis ont reçu 1 kg de foin complémenté avec 240 g (lot bas : B), 570 g (lot moyen : M) ou 840 g (lot haut : H) d'un concentré à base d'orge et de tourteau de soja. La proportion de ce dernier a été ajustée pour obtenir 3 rations iso-azotées (120 g MAT·kg -1 ). Les apports énergétiques sont estimés à 1,2, 1,8 et 2,2 fois le besoin d'entretien pour les lots L, M et H respectivement. L'ingestion du foin (829 ± 18 g MS·j -1 ) n'est pas affectée par la quantité de concentré distribuée. La note d'état corporel des brebis est très faible au début de l'essai (1,9 ± 0,3) et continue à baisser tout au long de l'expérience. Cependant, la baisse est plus prononcée (P < 0,05) chez les brebis qui reçoivent les niveaux L et M. Le poids vif des brebis après la mise-bas ...

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Section: Milk Productionmentioning

confidence: 99%

The effect of constant dietary energy supply during late gestation and early lactation on performances of prolific D’man ewes

Mahouachi¹,

Rekik²,

Lassoued

et al. 2004

Anim. Res.

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“…Two hours later, the procedure was repeated and the milk volume was measured (Reynolds and Brown, 1991). This amount of milk represented 2-h milk production, which corresponds to normal suckling intervals of lambs at this age (Ricordeau et al, 1960). Within collection period, milk volume (milliliters) was adjusted to a 2-h production period for each ewe.…”

Section: Milk Productionmentioning

confidence: 99%

Production by ewes rearing single or twin lambs: effects of dietary crude protein percentage and supplemental zinc methionine1

Hatfield¹,

Snowder²,

Head

et al. 1995

Journal of Animal Science

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ABSTRACTthan DM1 by ewes not supplemented with zinc methionine and ewes fed the 11.3% CP diet. Ewes fed the 14.9% CP diet tended ( P < .14) to gain more BW from 30 d prepartum to 4 d postpartum and lose more BW from 4 to 42 d postpartum than ewes fed the 11.3% CP diet. Ewes fed zinc methionine and the 14.9% CP diet produced more ( P < .lo) milk on d 28 than their counterparts. Ewes rearing twins produced more ( P < .05) milk on d 4, 10, and 18 than ewes rearing single lambs. However, milk production on d 28 was not affected by number of lambs reared ( P = .68). Lamb ADG at 28, 42, and 59 d postpartum was greater ( P < .05) for both the zinc methionine treatment and the 14.9% CP diet. Zinc methionine ( P = .11) and the 14.9% CP diet ( P = .02) increased weaning weights by 6 and 9%, respectively. We conclude that both the zinc methionine supplement and the 14.9% CP diet resulted in more persistent milk production. In addition, when ewes and lambs were fed for an average of 42 d during early lactation, a 14.9% CP diet, and to a lesser degree, a chelated zinc methionine supplement, lamb weaning weights were improved.

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“…Bubenik found the sucking periods averaged 100 sec in duration, with an average milk intake per period in the first 4 weeks of 370 ml. Lambs suck rather more frequently (Ricordeau, Boccard & Denamur, 1960;Ewbank, 1967). Wallace (1948) found that lambs could drink a 4-hr milk production at one sucking, and Munro & Inkson (1957) found no difference in the yield of ewes when measured by 1-and 4-hr suckings.…”

Section: Milk Yieldsmentioning

confidence: 99%

The Composition and Yield of Milk From Captive Red Deer (Cervus Elaphus L.)

Arman¹,

Kay²,

Goodall³

et al. 1974

Reproduction

103

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Summary. The gross anatomy of the mammary gland of the red deer is described. A total of 102 milk samples was obtained from six deer (four during a complete lactation). These contained an average of 21\m=.\1 % total solids (8\m=.\5% fat) in early lactation, rising to 27\m=.\1% (13\m=.\1% fat) in late lactation. Milk yieldswere measured by the calf-weighing technique. In well-fed hinds, peak yields of 1400 to 2000 g/day were reached early in lactation. One hind on a restricted food intake gave a maximum of 970 g/day. Lactation continued for 190 to over 280 days. Total yields for the first 150 days were estimated to be 140 to 180 kg in well-fed hinds and 65 kg in the underfed hind.The feed intakes of the hinds rose during late pregnancy, and in early lactation rose again markedly, to a level about 2\ m=. \ 4 to 2\ m=. \ 6 times the maintenance requirement of non-breeding animals.

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Mesure De La Production Laitière Des Brebis Pendant La Période d'ALLAITEMENT

Cited by 37 publications

References 0 publications

The effect of constant dietary energy supply during late gestation and early lactation on performances of prolific D’man ewes

The effect of constant dietary energy supply during late gestation and early lactation on performances of prolific D’man ewes

Production by ewes rearing single or twin lambs: effects of dietary crude protein percentage and supplemental zinc methionine1

The Composition and Yield of Milk From Captive Red Deer (Cervus Elaphus L.)

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