Suckling Milk Yield of Zaraibi Goats as Affected by Measuring Methods | ||||
| Journal of Animal and Poultry Production | ||||
| Article 3, Volume 9, Issue 3, March 2018, Page 157-162 PDF (273.34 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2018.38963 | ||||
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| Authors | ||||
| A. M Abdel-Gawad; A. L. Desoky | ||||
| Sheep and Goat Research Department, Animal Production Research Institute, Agricultural Research Center, Giza, Egypt | ||||
| Abstract | ||||
| This work was carried out on Zaraibi does to investigate the suckling milk yield as affected by different methods of the milk yield measurement. This work includes two studies, in the first study, 75, 75 and 87 Zaraibi does were kidding in March season 2006, 2008 and 2009, respectively, where suckling milk was estimated by techniques namely Hand-Milking (HM), Kid/Suckling (KS) and Oxytocin injection + Hand-Milking (OH). Data indicated that total and daily milk yield during suckling period with OH technique was significantly (P<0.05) higher (170.3 kg/h and 1.80 kg/h/d) than those obtained by KS technique (161.4 kg/h and 1.76 kg/h/d) and HM one (144.3 kg/h and 1.61 kg/h/d), respectively. In other words, the quantity of daily suckling milk yield measured by OH and KS were about 11.80 % and 9.32 % higher than that relative measured by HM, respectively. Therefore, OH technique gave considerably more return (9.91 L.E. /h) from milk during suckling period compared to the other two techniques, KS (9.68 L.E. /h) and HM (8.87 L.E. /h), respectively. On the other hand, results illustrated that measuring methods did not had any significant effect on total and daily milk production and length of lactation during the milk lactation stage (suckling plus lactation periods), being 260.8 kg/h, 1.12 kg/h/d and 234.1 days), (253.5 kg/h, 1.03 kg/h/d and 246.9 days) and (255.8 kg/h, 1.06 kg/h/d and 241.2 days) for techniques HM, KS and OH, respectively. Data indicated that type of measuring method of suckling milk yield did not have significant effect on kid performance, such as birth and weaning weight, being (1.86 kg and 10.03 kg), (1.65 kg and 10.12 kg) and (1.64 kg and 9.99 kg) for kids tested techniques HM, KS and OH, respectively. Therefore, change in live body weight of kids from birth until weaning had no effect being 8.17 kg, 8.47 kg and 8.35 kg for techniques HM, KS and OH, respectively. Also, average daily gain, obtained the same trend being, 90.8 g, 94.1 g and 92.8 g, for techniques HM, KS and OH, respectively. Over the second study, fifteen Zaraibi does were selected according to parity, weight, litter size and milk production and were used as one group, where these animals were kept under the same feeding and management practices. They were used to compare among the three measuring methods of suckling milk (HM, KS and OH), to select the suitable method. These methods of measuring suckling milk were experimented in three different and consecutive days (one of these methods every day) being at 14 day post-partum and repeated at 29, 59 and 88 day of the go-day suckling period. Results indicated that total milk yield during suckling period with OH technique was highly significant (P<0.05) higher (175.5 kg/h) than those estimated by KS technique (166.5 kg/h) and HM one (149.25 kg/h), respectively. So, the quantity of suckling milk yield obtained by OH and KS were about 17.59 % and 11.56 % higher than that relative measured by HM, respectively. Therefore, OH technique gave considerably more return (10.73 L.E. per/h) from milk during suckling period compared to the other two techniques, KS (10.18 L.E/per/h) and HM (9.12 L.E per/h), respectively. From this work, it is clear that the measurement of suckling milk yield by OH technique led to an increases the productivity of milk and thus increasing the economic returns in comparison with the KS and HM techniques without any adverse effect on kid performance such as birth and weaning weight or animals health. So, the OH technique is the suitable method to estimate the milk yield during suckling period for goats. | ||||
| Keywords | ||||
| Zaraibi goats; suckling milk and lactation milk; Hand-Milking; Kid/Suckling; Oxytocin injection + Hand-Milking | ||||
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