تغذیه گروهی در مقابل انفرادی بره‌های پرواری بر عملکرد رشد، قابلیت هضم مواد مغذی، رفتار مصرف خوراک و فراسنجه‌های خونی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استاد، گروه تغذیه دام‌و‌طیور، دانشکده علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

2 دانشجوی کارشناسی ارشد، گروه تغذیه دام و طیور، دانشکده علوم دامی، دانشگاه کشاورزی و منابع طبیعی گرگان-گرگان.ایران

3 استادیار گروه تغذیه دام و طیور، دانشکده علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

4 استادیار ، گروه تغذیه دام‌و‌طیور، دانشکده علوم دامی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

چکیده

سابقه و هدف: پرواربندی بره، یکی از زیرمجموعه‌های حرفه دامپروری محسوب می‌شود. از روش‌های مختلف نگهداری دام‌ها می‌توان به نگهداری انفرادی و نگهداری به‌صورت گروهی اشاره کرد. تغذیه گروهی در مقابل تغذیه انفرادی حیوانات سال‌هاست موضوعی بحث برانگیز در میان متخصصان تغذیه بوده است. برخی محققین برآنند که تأثیر روانی بر حیوانات، نگهداری به‌صورت انفرادی یا گروهی بر نتایج آزمایش تأثیر می‌گذارد. تغذیه انفرادی حیوانات در تحقیقات تغذیه‌ای و بیولوژیکی مهم است. علاوه بر این، داده‌های فردی دارای مزایای آماری در تعداد درجه آزادی با تعداد مساوی از حیوانات و در شناسایی تنوع فردی است
مواد و روش‌ها: مطالعه حاضر به ارزیابی اثرات روش‌های‌تغذیه انفرادی و گروهی بر عملکرد رشد، قابلیت هضم مواد مغذی، رفتار غذایی و فراسنجه‌های خونی بره‌های پروار می‌پردازد. تعداد 16 رأس بره دالاق با میانگین سنی 3 ماه و وزن 2±22 کیلوگرم به‌صورت تصادفی در 2 تیمار و 8 تکرار در قالب طرح کاملاً تصادفی تقسیم شدند. تیمارهای آزمایشی شامل: 1) تغذیه انفرادی و 2) تغذیه گروهی بود. دوره آزمایشی 90 روز شامل 14 روز سازگاری به‌طول انجامید. برههای تیمار اول در جایگاههای انفرادی و برههای تیمار دوم بهصورت گروهی نگهداری شدند. جیره‌های مورد استفاده در این آزمایش بر اساس جداول انجمن ملی تحقیقات گوسفند (2007) تهیه و تنظیم شده و در حد اشتها در دو نوبت صبح ساعت 8:00 و ساعت 16:00 در اختیار بره‌ها قرار گرفت. همه بره‌ها در شرایط مدیریتی و تغذیه‌ای یکسان قرار گرفته و تفاوتی در اجزای جیره دو تیمار وجود نداشت. میزان افزایش وزن روزانه و خوراک مصرفی بره‌ها اندازه‌گیری و ضریب تبدیل خوراک محاسبه شد. اندازه‌گیری قابلیت هضم ظاهری ماده خشک و ماده آلی، با استفاده از خاکستر نامحلول در اسید به عنوان مارکر داخلی انجام شد. نمونه-گیری جهت اندازه‌گیری فراسنجه‌های خونی در آخر دوره انجام شد. جهت بررسی رفتار مصرف خوراک، در روز آخر دوره به‌مدت 24 ساعت بره‌ها به‌صورت چشمی تحت نظر قرار گرفته شدند و رفتار مصرف خوراک ثبت شد. بره‌ها در طول دوره دسترسی آزاد به آب داشتند.
یافته‌ها: تیمارهای آزمایشی تأثیر معنی‌داری بر مصرف خوراک روزانه، افزایش وزن روزانه و ضریب تبدیل خوراک نداشت. به‌طور مشابه، تغذیه گروهی و انفرادی اثر معنی‌داری بر قابلیت هضم ماده خشک و ماده آلی نشان نداد، اما این مقادیر در گروه تغذیه انفرادی نسبت به تیمار تغذیه گروهی به‌صورت عددی افزایش یافت. زمان جویدن، استراحت و نشخوار کردن تحت تأثیر تیمارهای آزمایشی قرار نگرفت، اما زمان خوردن تحت تأثیر تیمارها قرار گرفت که مقادیر قابل توجهی را در تغذیه گروهی نشان داد.
نتیجه‌گیری: بر اساس نتایج این تحقیق تغذیه گروهی در مقایسه با تغذیه انفرادی تأثیر معنی‌داری بر عملکرد رشد بره‌ها نداشت.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Group feeding vs. individual feeding of lambs on growth performance, nutrient digestibility, eating behavior and blood parameters

نویسندگان [English]

  • Taghi Ghoorchi 1
  • Mehdi PiyadehKouhsar 2
  • Mostafa Hosseinabadi 3
  • Abdolhakim Toghdory 4
1 Professor, Department of Livestock and Poultry Nutrition, Faculty of Animal Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
2 MS.C student, Department of Animal and Poultry Nutrition, Faculty of Animal Sciences, Gorgan University of Agriculture and Natural Resources-Gorgan.Iran
3 Assistant Professor Dept. of Animal and Poultry Nutrition, Faculty of Animal Science, Gorgan University of Agricultural Science and Natural Resources
4 Professor, Department of Livestock and Poultry Nutrition, Faculty of Animal Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
چکیده [English]

Introduction:
Groups feeding vs. individual feeding of animals has been a controvesial subject among nutritionists for many years. Some believe the psychological effect on animals, being housed individually or in groups influence the results of experiment, some have found that effect to be depended on the ration fed. Individual feeding of animals is important in nutritional and biological research. In addition, individual data have statistical advantages in the number of degree of freedom with an equal number of animals and in identifying individual variation.
Materials and methods:
16 Dalagh lambs with an average age of 3 months and weight of 1 22±2 with 2 treatments and 8 replications were used in a completely randomized design. The treatments include: 1- individual nutrition and 2- group nutrition. The duration of the trial period was 90 days, which included 14 days of habituation. The lambs of treatment one were kept individually in individual stalls and the lambs of treatment two were kept in groups. During the entire experiment, the animals had free access to clean drinking water and the daily feed was completely mixed in two meals (at 8:00 AM and 4:00 PM). The feed conversion factor was calculated by dividing the average daily dry matter intake of each lamb by the average daily weight gain of the same animal. The samples collected from each lamb were mixed and one sample was used for the chemical analysis of feces. Dry matter digestibility was calculated using acid-insoluble ash as an internal marker. Also, blood sampling was done on the last day of the test period and before the morning meal with 12 hours of food restriction, at the rate of 10 cc from the jugular vein and without the use of anticoagulant. To measure the feed consumption activity on the last day, the lambs were observed for 24 hours and the behavior of eating, ruminating, chewing and resting was observed and recorded.

Results and discussion:
Experimental treatments had no significant effect on daily feed consumption, daily weight gain and feed conversion ratio. Also, group and individual feeding could not have a significant effect on the amount of digestibility of dry matter and organic matter, but its amount increased insignificantly in the treatment with individual feeding compared to the treatment with group feeding. The behavior of chewing, resting and ruminating was not affected by the group and individual feeding methods, but the eating behavior was affected by the treatments and its amount increased significantly in group feeding. The reason for this increase can be attributed to the competitiveness of eating and the effort to have better and constant access to food in group feeding than in individual feeding where eating food is not competitive. The experimental treatments had a significant effect on the amount of glucose (P=0.0169), but the amount of cholesterol, triglyceride and urea nitrogen was not affected by group and individual feeding of lambs. The amount of cholesterol in individually fed lambs was insignificantly higher than group fed lambs. Probably, individual animals are involved in metabolic stress compared to group animals, and during the period of stress to meet the high metabolic demand of body tissues, changes in the level of serum lipids, especially cholesterol, are made, and the level of serum cholesterol also changes. Increase. In general, the results showed that group feeding had no significant effect on the performance of lambs compared to individual feeding.

Conclusion:
In general, the results showed that group feeding had no significant effect on the performance of lambs compared to individual feeding.

کلیدواژه‌ها [English]

  • Dalagh lamb
  • Individual feeding
  • Group feeding
  • Growth performance
Ahmadi, F., Ghasemi, E., Alikhani, M., & Akbarian Tefaghi, M. (2022). Effect of Group and Individual breeding on performance, blood parameters, ruminal fermentation, behavior and health of dairy calves. Iranian Journal of Animal Science Research, 14(3): 317-331. (In Persian). DOI: 10.22067/ijasr.2021.71006.1030
Araujo, R. C., Pires, A. V., Susin, I., Mendes, C. Q., Rodrigues, G. H., Packer, I. U. & Eastridge, M, L. (2008). Milk yield, milk composition, eating behavior, and lamb performance of ewes fed diets containing soybean hulls replacing coastcross (Cynodon species) hay. Journal of Animal Science, 86: 3511-3521. DOI: 10.2527/jas.2008-0940
Babu, L. K., Pandey, H. N., & Sahoo, A. (2004). Effect of individual versus group rearing on ethological and physiological responses of crossbred calves. Applied Animal Behaviour Science, 87(3-4): 177-191. https://doi.org/10.1016/j.applanim.2004.01.006.
Bernal-Rigoli, J. C., Allen, J. D., Marchello, J. A., Cuneo, S. P., Garcia, S. R., Xie, G., Hall, L. W., Burrows, C. D., & Duff, G. C. (2012). Effects of housing and feeding systems on performance of neonatal Holstein bull calves. Journal of Animal Science, 90(8): 2818-2825. https://doi.org/10.2527/jas.2011-4722.
Bučková, K., Šárová, R., Moravcsíková, Á., & Špinka, M. (2021). The effect of pair housing on dairy calf health, performance, and behavior. Journal of Dairy Science, 104(9): 10282-10290. https://doi.org/10.3168/jds.2020-19968.
Chua, B., Coenen, E., Van Delen, J., & Weary, D. M. (2002). Effects of pair versus individual housing on the behavior and performance of dairy calves. Journal of Dairy Science, 85(2): 360-364. https://doi.org/10.3168/jds.S0022-0302(02)74082-4.
Cobb, C. J., Obeidat, B. S., Sellers, M. D., Pepper-Yowell, A. R., & Ballou, M. A. (2014). Group housing of Holstein calves in a poor indoor environment increases respiratory disease but does not influence performance or leukocyte responses. Journal of Dairy Science, 97(5): 3099-3109. https://doi.org/10.3168/jds.2013-7823.
Costa, J. H. C., Meagher, R. K., Von Keyserlingk, M. A. G., & Weary, D. M. (2015). Early pair housing increases solid feed intake and weight gains in dairy calves. Journal of Dairy Science, 98(9): 6381-6386. https://doi.org/10.3168/jds.2015-9395.
Duve, L. R., Weary, D. M., Halekoh, U., & Jensen, M. B. (2012). The effects of social contact and milk allowance on responses to handling, play, and social behavior in young dairy calves. Journal of Dairy Science, 95(11): 6571- 6581. https://doi.org/10.3168/jds.2011-5170.
Ghoorchi, T & Asadi, Y. (2011). Voluntary Food Intake and Diet Selection in Farm Animals. Publications of Gorgan University of Agricultural Sciences and Natural Resources. 524 pages (Translation). (In Persian).
Grant, R. J., Colenbrander, V. F., & Mertens, D. R. 1990. Milk fat depression in dairy cows: role of particle size of alfalfa hay. Journal of Dairy Science, 73: 1823-1833. https://doi.org/10.3168/jds.S0022-0302(90)78862-5
Hepola, H., Hänninen, L., Pursiainen, P., Tuure, V. M., Syrjälä-Qvist, L., Pyykkönen, M., & Saloniemi, H. (2006). Feed intake and oral behaviour of dairy calves housed individually or in groups in warm or cold buildings. Livestock Science, 105(1-3): 94-104. https://doi.org/10.1016/j.livsci.2006.04.033.
Hossseinabadi, M., Ghoorchi, T., & Toghdory, A (2022). Evaluation of the effect of replacing potato plants on performance, digestibility, rumination behavior, blood and rumen parameters in Dalagh ewes. Journal of Animal Science, 32(4): 43-60. (In Persian). DOI: 10.22034/AS.2021.44791.1608
Hötzel, M. J., Longo, C., Balcao, L. F., Cardoso, C. S., & Costa, J. H. (2014). A survey of management practices that influence performance and welfare of dairy calves reared in southern Brazil. PLoS One, 9(12): e114995. https://doi.org/10.1371/journal.pone.0114995.
Jensen, M. B., Duve, L. R., & Weary, D. M. (2015). Pair housing and enhanced milk allowance increase play behavior and improve performance in dairy calves. Journal of Dairy Science, 98(4): 2568-2575. https://doi.org/10.3168/jds.2014-8272.
Liu, S., Ma, J., Li, J., Alugongo, G. M., Wu, Z., Wang, Y., Li, S., & Cao, Z. (2019). Effects of pair versus individual housing on performance, health, and behavior of dairy calves. Animals, 10(1): 50. https://doi.org/10.3390/ani10010050.
Mertens, D. R. 1997. Creating a system for meeting the fiber requirements of dairy Cow. Journal of Dairy Science, 80: 1463-1481.
Miller-Cushon, E. K., & DeVries, T. J. (2016). Effect of social housing on the development of feeding behavior and social feeding preferences of dairy calves. Journal of Dairy Science, 99(2): 1406-1417. https://doi.org/10.3168/jds.2015-9869.
Miller-Cushon, E. K., & DeVries, T. J. (2016). Effect of social housing on the development of feeding behavior and social feeding preferences of dairy calves. Journal of Dairy Science, 99(2): 1406-1417. https://doi.org/10.3168/jds.2015-9869.

Kromann, R. P., Finkner, M. D., & Sharp, J. E. (1971). Group feeding vs. individual feeding of lambs. Journal of Dairy Science,32 (3): 549-553.  https://doi.org/10.2527/jas1971.323549x

NRC. 2007. Nutrient requirements of small ruminants. Sheep, Goats, Cervids and New World Camelids. Washington, DC: National Academy Press.
Pempek, J. A., Eastridge, M. L., Swartzwelder, S. S., Daniels, K. M., & Yohe, T. T. (2016). Housing system may affect behavior and growth performance of Jersey heifer calves. Journal of Dairy Science, 99(1): 569-578. https://doi.org/10.3168/jds.2015-10088.
SAS. (2003). Qualification tools user’s guide. SAS 9.1. Cary (NC): SAS Institute.
Svensson, C., & Liberg, P. (2006). The effect of group size on health and growth rate of Swedish dairy calves housed in pens with automatic milk-feeders. Preventive Veterinary Medicine, 73(1): 43-53. https://doi.org/10.1016/j.prevetmed.2005.08.021.
Tapki, İ. (2007). Effects of individual or combined housing systems on behavioural and growth responses of dairy calves. Acta Agriculturae Scand Section A, 57(2): 55-60. https://doi.org/10.1080/09064700701464405.
Terré, M., Bach, A., & Devant, M. (2006). Performance and behaviour of calves reared in groups or individually following an enhanced-growth feeding program. Journal of Dairy Research, 73(4): 480-486. https://doi.org/10.1017/S0022029906002019.
Van keulen, J. V., & Young, B. A. (1977). Evaluation of acid-insoluble ash as a natural marker in ruminant digestibility studies. Journal of Animal Science, 44282. https://doi.org/10.2527/jas1977.442282x
Van Soest, P. J. 1994. Nutritional Ecology of the Ruminants. Cornell University Press, Ithaca, New York. steers. Nebraska Beef Cattle Reports. 67A: 72-74.
Vieira, A. D. P., Von Keyserlingk, M. A. G., & Weary, D. M. (2010). Effects of pair versus single housing on performance and behavior of dairy calves before and after weaning from milk. Journal of Dairy Science, 93(7): 3079- 3085. https://doi.org/10.3168/jds.2009-2516.
Vieira, A. D. P., Von Keyserlingk, M. A. G., & Weary, D. M. (2012). Presence of an older weaned companion influences feeding behavior and improves performance of dairy calves before and after weaning from milk. Journal of Dairy Science, 95(6): 3218-3224. https://doi.org/10.3168/jds.2011-4821.
Vinay Agarwal, B. G. (1997). Examination stress: Changes in serum cholesterol, triglycerides and total lipids. Indian Journal of Physiology and Pharmacology, 41(4): 404-408.