Words

Adaptability of rabbits to the hot climate Yamani K.A.O., Khalil M.H. in Baselga M. (ed.), Marai I.F.M. (ed.). Rabbit production in hot climates Zaragoza : CIHEAM Cahiers Options Méditerranéennes; n. 8 1994 pages 65-69

Article available on lin e / Article dispon ible en lign e à l’adresse : -------------------------------------------------------------------------------------------------------------------------------------------------------------------------http://om.ciheam.org/article.php?IDPDF=95605280 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------To cite th is article / Pou r citer cet article -------------------------------------------------------------------------------------------------------------------------------------------------------------------------Yamani K.A.O., Khalil M.H. Adaptability of rabbits to th e h ot climate. In : Baselga M. (ed.), Marai I.F.M. (ed.). Rabbit production in hot climates. Zaragoza : CIHEAM, 1994. p. 65-69 (Cahiers Options Méditerranéennes; n. 8) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------

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CIHEAM - Options Mediterraneennes

OF

TO

A. Yamani & Farghally of Faculty of Zagazig, Egypt.

The rabbit as a nocturnal animal happening and being very active at night, is recommendedto feed duringthecool period of thenightswhich characterized with lower ambient temperature and lower humidityin summer months and the other hot months of the year round. The maximum and minimum temperature and the relative humidity in the morning and after noon were analysed statistically and revealed seasonal, month, seasonX month signijicantdflerence. The hot months in summer and other hot months were discussed The favourable efect of lower temperature on the performance and behaviourof the rabbit supported the proposal the nocturnal feeding and diurnal feed utilizationfor rabbits under thedflerent production systems. Words:

.

The domestic, has exist in to the exceptionally can adapt intensive to systems in

has shown in live weight gain and food 1976 and Steplan, 1980). et .al. (1991)assessed the influence of the total weight loss (“h)in show that mainly the climate can affect animal (4.2%weight loss) humditiy vs. 3.8% 70-75%

fiom the 0m.n

inwhich they

keptwiththeaidofman 1992).

The exposedtohighambient -

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while 8045% the weight loss was 2.5% only. the was the weight loss. Oneof the main causes sexual and is the hot 1992). Although the doe is capable 10 a it gives only 4 to 5 in hot climate. is the main point as well as the hot monthsof the whole to be studied in this of in hot climates. needs investigation to give high lights to to the negatively effects on

liveweight.The that, will

doe, the feed intake, the the size and the

Some times, beside the hot seasons andmonths of the daily 32OC and may 45OC. of 32OC leading to losses. When of 35oC and losses fiom heat is the most obvious sign of heat weight gains, feed disease incidence,

suggested a the animals to the

ability to live. 34°C ambient

at

36OC

had ambient

mating and kindlingtook place between 26-3OOC (Xulide et al., 1992). between 38.4OC 39.6OC in

Automnup

to the

of seasons and change

the season.

no indices, of

The is a animal happening at night and seeking its food of the day, the lowest feed intake of the was in of the day, feed intake was 9% fkom 8 to 13 h., 17% 13 to 18h and 74% fi-om 18 to 8h. and Augusta, 1988). The seasonal effect wasalso the night The animalsconsumed 82% of the diet of the season,while in the consumed The digestibility

efficiency and conditionsmay also all of which affect economics. to to of the of the female the heat will

-

-


was obtained in Autumn, but the in The diet was utilized much of the small feed quantity passing the active . mainly in to and

effective

the humidity is not in the as the in is the air 340C 100% the nights of the hot

the

1958).

months.

.

humidity and months in Egypt: The the

to suggested the in the hot h.daily. months in in Table 1

1).

of the nights of these months means to adjust the feedingtimeclockand the schedules. The feed utilization as the of passage of feed in the the of the day. The feed intake,appetite,dailygainand feed will in the (20-26oC) than in (26-3 loC).

in seems that the minimum and maximum may mask the high in low in may andless than lOOC in the two seasons; the between the minimum maximum among seasons and amongmonths highlysignificant 50.01).

nightsuggestedto

in

is July. The in humidity is in the is in between (8 h) and the (15 h) andthelowest humidity is in Spring. amongseasonsandmonths is highly significant between the in this -

is of 13 h to 8

the

be thetime of in the hot months not only the of

well as in

feeding

-

as


intensive,

(1976): lapin 10,ZO et

the and

system as the system in the in Egypt. studies in this all the of and benefit the of

30".

C. Feed

Council,

5-

of J.C. (1992):Noteson the J. AQppl.

that has shown the of heat as well. Stephan, influence of of

E. (1980): The Congs.

feeding 4th

marina (1992): Some

&

of

C,, Luzi F. del

systems. J. Appl. 63.

(199 1): sulacluni coniglio Atti XLV Conv. Vet.', in Stampa.

15:

Xu Lide, Uang Ganumfù, Chen Shinuan and Ye Yofù

(1 958): Continuous activity of the cuniculus (L.);

the

of the the J.

24-

26-3 1.

-

-

of hot season.


cds o w

00000000

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