تأثير تغذية نعاج العواس الحلوب على نواتج تقليم أشجار الزيتون في بعض المؤشرات الإنتاجية و تركيب الحليب

الملخص EN

The study was conducted in order to evaluate the effect of utilization of the pruning by-products from olive trees (Leaves and twigs) in milking Awassi ewes diets, and its impact on milk production and composition, digestibility coefficient, and the consumed quantity of feed supply.

Twenty four of milking Awassi ewes heads, in the third and fourth milking season, close in dates of birth, were used and divided into two equal groups (Control and treatment), with an average alive weight of 66.4±4.66 kg for the treatment group and 64.4±7.5 kg for the control group, to compare two different feeding treatments: the Control (T1) (concentrated feed + alfalfa hay) (T.D), T2 Treatment (complete feed with 35% olive trees pruning by-products) (leaves and fresh twigs with a diameter of no more than 3 cm), which were manufactured in the form of capsules (8 mm in diameter).

The rations were formulated to meet the sheep requirements according to NRC (1985).

The digestibility coefficient of feed ingredients (dry matter, crude protein, crude fiber) was computed using special individual cages for this purpose (in-vivo).

Results showed no significant differences for feed consumption per head per day, reaching up to 1841.2, 1960.2 kg dry matter for both the treatment and the control respectively.

There was no significant difference for the fat, protein and total solid contents of milk for the two sets of control and treatment, but there was a significant difference (P<0.05) in the lactose between the two treatments (4.91±0.008 %4.66±0.07 % for the treatment and control respectively).

There was no significant difference in the milk production per day per head (834±71.2 kg and 807±71.3 kg, respectively).

There was also a significant difference in the feed cost to produce 1 kg of milk in favor of the control group (27.10 SYP) compared with the experiment (22.75.

SYP).

The experience showed the superiority of the diet containing olive trees (Leaves and twigs) (complete feed) over the traditional diet containing alfalfa hay.

In addition to the lower cost of production / 1 / kg milk from the diet (OPBP) by (4.35 Syrian pounds) Including manufacturing costs compared with (T.D).

The recommendation is to expand the use of (OPBP) at the government level, especially in drought years in ruminant feed as an important feed resource.