Sheep - AgRIS

Sheep - AgRIS Sheep - AgRIS

24.04.2013 Views

of fleece is done on visual appraisal of length, fineness (handle or feel). Grading of Indian wools was initiated under FAO/UNDP project based on wool quality, length, colour and vegetable fault (content of vegetable matters, e.g. burr, seed). About 90 types were prescribed besides lower lines. The Indian Standard Institution (IS 2900: 1979) evolved a grading system based on micron value. It prescribes almost 120 grades. Thereafter style grading was introduced in Rajasthan which cuts the grades to 32 only. However, none of the above grading sytems is practised in the country to any significant extent. The results led to the following recommendations: (a) wool from different agroclimatic regions and breeds may be marketed as such; (b) at the time of shearing fleece should be properly skirted; (c) fleece after skirting may be classed into at the most 2 to 3 grads, like fine, medium and coarse; and (d) bales from individual lots should be sampled, and these samples be subjected to objective quality assessment through laboratory testing for yield, length, average fibre diameter and vegetable matter content. 9. 6.2 Meat In our country the word mutton is used in a very broad sense to include goat meat also. However, mutton by definition is the flesh together with the associated tissues such as blood vessels, nerves, glands, fat and bones from carcasses of sheep older than 12 months of age. Sometimes, mutton from sheep carcasses of 12-24 months of age is called as yearling mutton whereas that from carcasses older than 24 months of age is called mature mutton. Meat from sheep carcasses younger than 12 months of age is called lamb. Flesh from goats should be called chevon (pronounced as 'shevon' which means a kid). Mutton and chevon are substituted for each other once in a while by meat traders in places where there are local preferences and price differential. Although it is very difficult for a layman to differentiate sheep and goat flesh, the following points might be useful: Lamb is pale pinkish with evenly distributed firm white fat. Mutton is slightly darker than lamb and many a times there is a well developed and thick fat cover. Mutton may also have marbling in it. Both lamb and mutton may have a few wool fibres sticking here and there. Chevon is dark red with coarse texture and a sticky suboutaneous connective tissues layer which may have adherent goat hairs. For the production of wholesome meat with good keeping qualities, sound husbandry methods and cleanliness ofthe animal during final stages before marketing are necessary. Feed additives and antibiotics should be withdrawn at appropriate period before slaughter. Sheep may often become dirty due to diarrhoea or during wet weather. Judicious drying off of wet sheep on a clean straw for 12 hours beffire slaughter is of great value. Detection and segregation of sick sheep before transporting them to a slaughter point will avoid transportation and subsequent losses. During transportation from a farm to abattoir every possible care should be taken to avoid injury, lameness, suffocation or transit fever. Sheep should never be lifted by wool during loading and unloading as this will cause bruises leading to carcass trimming losses. Water must be provided to sheep and goats during a journey of 36 hours or over. A minimum floor space of 213 cm 2 per sheep must be ensured during transportation. Sheep normally loose up to 3-6 kg of their body weight during transportation depending on the weather and duration of the journey, due to seating, exhaustion, and exoretion of urine and faeces. Stress during transportation and before slaughter affects carcass yields, microbial contents of the tissues, onset of rigor mortis and the keeping quality of flesh and preserved meat Therefore, sheep should be rested at least for 16 hours prior to slaughter with continuous access to water. 9.6.3 Milk Since Sheep are small, many sheepmen prefer to have the ewes stand on a milking platform. This also gets the milch animal up off the soiled floor. On the other hand, in India the people are used to squatting down when they milk ewes/does so there is probably not enough to be gained to warrant the cost of constructing a milking stand. Large commercial dairies in European coutries construct a masonry platform 38 to 45 centimeters above the floor level. The ewes/does place their heads in a stanchion and while 10 to 20 ewes/does are being milked either by hand or a milking machine, the ewes/does are eating their concentrate happily. By the time the 10 to 20 ewes/does are milked, they too have finished their grain and are ready to be relaeased for the next group of ewes/does. In India the habit is to milk the ewes/does by hand from the left side. This is preferable to milking from the rear. 459

The secretion of milk takes place day and night but it is slowed up by the pressure ofthe accumulated milk in the udder. So milking the animals at regular intervals gives the best results. Feeding should also be done at the same time each day. When possible it is preferable that the same person manages the ewes/goats. Milk is a food and should be treated with the utmost cleanliness and sanitation. Keep the wool clipped from around the flank and udder to prevent dirt from collecting, which might fall into the milk. Brush the ewe daily or at more frequent intervals. Wash the udder or wipe it with a damp cloth before milking. The person doing the milking must have clean hands and clothes. Milking utensils must be clean. Milk in a clean environment away from the ram. 9. 6.4 Edible and non-edible offal For effecting an improvement in quality and to increase the quantity of casings collected for processing, the first essential step is improvement in the conditions prevailing in the slaughter houses. Modernisation of slaughter houses and provision of a byproduct wing in them are absolutely essential. However, pending modernisation an interim measure to improve the qualityof the casings immediately would be to make provision for adequate water supply in the existing slaughter houses so that the guts are cleaned properly within the precincts, and with the least possible delay. In many slaughter houses, guts are not removed soon after the slaughter of animals. This results in deterioration of the quality of guts. As such, it should be made obligatory on butchers to remove guts within prescribed hours. The byproducts wing of each slaughter house should have a processing unit for guts under hygienic conditions. Guts may then be sorted out according to calibre, grade etc. thus making it easy for the exporter as well as the processor to do only the final grading. This would fetch a better price for the graded product. 9. 6.5 Skins and Hides Hides of all animals which die cannot be fully claimed as arrangements for timely flaying of dead animals are not available in many parts of the country. Loss of hides of aniamls lost in floods, famines and those dying in remote areas has been estimated to range between 4 and 10 percent in different parts of the country. In the case of skins, the wastage due to non-collection is negligible, the major proportion of skins being recovered from slaughtered stock. The estimated annual loss of skins due to non-collection from dead stock has been reckoned at 1 to 2 per cent. Though India stands second in the world in the production of hides and fifth in the matter of production of skins, it cannot forge ahead in capitalising on its large production unless stress is laid on quality right from the initial stages of production. As such, improved methods of flaying should be introduced in the slaughter houses and better flaying should be encouraged by payment of premia to good flayers. The all India Kahdi and Village Industries Commission has set up a number of flaying centres in the rural areas through the State Khadi and Village Industries Boards. There is however an urgent need for establishing more village flaying centres for skilled flaying offallen animals. Demonstration-cum-training centres should be established in important places for imparting training in curing, tanning and rational utilisation of hides. Facilities need to be suitably strengthened to carrytout grading of hides and skins according to Agmark standards. Cold storage facilities for preserving raw hides and skins also need to be provided, wherever possible. Before export, a system of compulsory pre-shipment inspection should be introduced. This measure is of vital importance in securing quality. 460

The secretion of milk takes place day and night but it is slowed up by the pressure ofthe<br />

accumulated milk in the udder. So milking the animals at regular intervals gives the best<br />

results. Feeding should also be done at the same time each day. When possible it is preferable<br />

that the same person manages the ewes/goats.<br />

Milk is a food and should be treated with the utmost cleanliness and sanitation. Keep the<br />

wool clipped from around the flank and udder to prevent dirt from collecting, which might fall<br />

into the milk. Brush the ewe daily or at more frequent intervals. Wash the udder or wipe it with<br />

a damp cloth before milking. The person doing the milking must have clean hands and clothes.<br />

Milking utensils must be clean. Milk in a clean environment away from the ram.<br />

9. 6.4 Edible and non-edible offal<br />

For effecting an improvement in quality and to increase the quantity of casings collected<br />

for processing, the first essential step is improvement in the conditions prevailing in the<br />

slaughter houses. Modernisation of slaughter houses and provision of a byproduct wing in them<br />

are absolutely essential. However, pending modernisation an interim measure to improve the<br />

qualityof the casings immediately would be to make provision for adequate water supply in the<br />

existing slaughter houses so that the guts are cleaned properly within the precincts, and with the<br />

least possible delay.<br />

In many slaughter houses, guts are not removed soon after the slaughter of animals. This<br />

results in deterioration of the quality of guts. As such, it should be made obligatory on butchers<br />

to remove guts within prescribed hours. The byproducts wing of each slaughter house should<br />

have a processing unit for guts under hygienic conditions. Guts may then be sorted out<br />

according to calibre, grade etc. thus making it easy for the exporter as well as the processor to<br />

do only the final grading. This would fetch a better price for the graded product.<br />

9. 6.5 Skins and Hides<br />

Hides of all animals which die cannot be fully claimed as arrangements for timely flaying<br />

of dead animals are not available in many parts of the country. Loss of hides of aniamls lost in<br />

floods, famines and those dying in remote areas has been estimated to range between 4 and 10<br />

percent in different parts of the country. In the case of skins, the wastage due to non-collection<br />

is negligible, the major proportion of skins being recovered from slaughtered stock. The<br />

estimated annual loss of skins due to non-collection from dead stock has been reckoned at 1 to<br />

2 per cent.<br />

Though India stands second in the world in the production of hides and fifth in the matter of<br />

production of skins, it cannot forge ahead in capitalising on its large production unless stress is<br />

laid on quality right from the initial stages of production. As such, improved methods of flaying<br />

should be introduced in the slaughter houses and better flaying should be encouraged by<br />

payment of premia to good flayers. The all India Kahdi and Village Industries Commission has<br />

set up a number of flaying centres in the rural areas through the State Khadi and Village<br />

Industries Boards. There is however an urgent need for establishing more village flaying<br />

centres for skilled flaying offallen animals. Demonstration-cum-training centres should be<br />

established in important places for imparting training in curing, tanning and rational utilisation<br />

of hides. Facilities need to be suitably strengthened to carrytout grading of hides and skins<br />

according to Agmark standards. Cold storage facilities for preserving raw hides and skins also<br />

need to be provided, wherever possible. Before export, a system of compulsory pre-shipment<br />

inspection should be introduced. This measure is of vital importance in securing quality.<br />

460

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