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اثر استفاده از نیام کهور پاکستانی (Prosopis juliflora) بر عملکرد بزهای شیرده تالی | ||
تولیدات دامی | ||
مقاله 4، دوره 20، شماره 1، اردیبهشت 1397، صفحه 43-53 اصل مقاله (728.12 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/jap.2018.238942.623212 | ||
نویسندگان | ||
فیروز عسگری1؛ مصطفی یوسف الهی* 2؛ حسن فضائلی3 | ||
1گروه علوم دامی دانشکده کشاورزی دانشگاه زابل | ||
2گروه علوم دامی دانشکده کشارزی دانشگاه زابل | ||
3، مؤسسه تحقیقات علوم دامی کشور، کرج | ||
چکیده | ||
هدف از این تحقیق، استفاده از نیام کهور در جیره بزهای شیرده با استفاده از 20 رأس بز تالی شیرده با میانگین وزن 5/2±34 کیلوگرم بود. بزها به دو گروه (گروه با جیره شاهد و گروه با جیره حاوی نیام کهور) 10 رأسی تقسیم شدند و به-مدت 12 هفته تغذیه شدند. جیرهها براساس نیاز بزغالهها از دوبخش علوفه و کنسانتره به نسبت مساوی تهیه شد. میزان نیام کهور در کل جیره آزمایشی 25/19 درصد بود. در ابتدای آزمایش و سپس هر دو هفته یک بار بزها به طور انفرادی توزین شدند و تغییرات وزن آنها محاسبه شد. همچنین، میزان شیر تولیدی به طور هفتگی و ترکیبات شیراندازهگیری شد. میانگین تولید شیر روزانه و درصد چربی آن در بزهای تغذیه شده با جیره شاهد و جیره حاوی نیام کهور به ترتیب 550 و570 گرم و 24/3 و 39/2 درصد بود که تفاوت معنیداری نداشتند. همچنین، ترکیبات شیر (چربی، پروتئین، خاکستر، ماده جامد و ماده جامد فاقد چربی) تحت تاثیر جیره قرار نگرفت. وزن بدن بزها در طول دوره آزمایش و نیز بین دو گروه آزمایشی تفاوت معنیداری نداشت. هزینه تمام شده خوراک و نیز هزینه تولید شیر بزهای تغذیه شده با جیره حاوی نیام کهور 20 درصد نسبت به گروه شاهد ارزانتر بود. بنابراین، از نیام کهور میتوان به میزان 20 درصد در جیره غذایی بزهای داشتی استفاده نمود و هزینه تغذیه را کاهش داد. | ||
کلیدواژهها | ||
بز تالی؛ تولید شیر؛ عملکرد؛ کهور پاکستانی؛ نیام | ||
عنوان مقاله [English] | ||
Effect of using Prosopis juliflora pods on Performance of Tali lactating goats | ||
نویسندگان [English] | ||
firouz asgari1؛ mostafa yousef elahi2؛ Hassan Fazaeli3 | ||
1Dept. of Animal science, faculty of agriculture, university of zabol | ||
2Dept. of animal science, Faculty of agriculture, university of zabol | ||
3Animal Science Research Institute of Iran, Agricultural Research Education and Extension Organization (AREEO) | ||
چکیده [English] | ||
The aim of this study was to examine use of Prosopis julifora pods (PJP) in lactating goats (twenty lactating Tali goats with body weight mean of 34 ± 2.5 kg) diet. Goats were divided in two groups of ten heads) One group with control diet and the other group with Prosopis julifora) and fed for 12 weeks. Diets were prepared based on goats’ requirements from both forage and concentrate with equal proportion. PJP rate in total experimental diet was 19.25%. Animals were weighed individually the beginning of the trial and every two weeks until the end of period. Their weight changes were calculated. Also, their weekly milk production rate and milk compositions were determined. The average daily milk yield and milk fat percent in fed goats with control diet and PJP diet was 550 and 570g, and 3.24 and 2.39%, respectively that weren’t statistically different. Milk compositions (fat, protein, ash, solid material and solid material without fat) weren’t affected by the diet. The body weight during of experimental period and also, between two groups was not significant different statistically. Total cost of feed and milk production of fed goats with 20% PJP diet was cheaper than control group. Therefore, PJP can be used as a feedstuff up to 20% of lactating goats’ diet and reduce nutrition cost. | ||
کلیدواژهها [English] | ||
Tali goat, Milk poduction, performance, Prosopis Juliflora, Pods | ||
مراجع | ||
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